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  • 301.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Shamim, T.
    Masdar Institute of Science and Technology, Abu Dhabi, United Arab Emirates.
    Chou, S. K.
    National University of Singapore, Singapore.
    Desideri, U.
    Università di Pisa, Largo Lucio Lazzarino, Pisa, Italy .
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Clean, efficient and affordable energy for a sustainable future2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 185, p. 953-962Article in journal (Refereed)
  • 302.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Stockholm, Sweden.
    Shamim, T.
    Masdar Inst Sci & Technol, Abu Dhabi, U Arab Emirates.
    Choud, S. K.
    Natl Univ Singapore, Singapore.
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Clean, Efficient and Affordable Energy for a Sustainable Future - The Proceedings of the 7th International Conference on Applied Energy (ICAE2015)2015In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 75, p. 1-2Article in journal (Other academic)
  • 303.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Stockholm, Sweden.
    Sun, F.
    Beijing Inst Technol, Peoples R China..
    Chou, S. K.
    Natl Univ Singapore, Singapore..
    Desideri, U.
    Univ Pisa, Pisa, Italy..
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Xiong, R.
    Beijing Inst Technol, Peoples R China.
    Transformative Innovations for a Sustainable Future2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 204, p. 867-872Article in journal (Other academic)
  • 304.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Sweden.
    Sun, F.
    Beijing Inst Technol, Beijing, Peoples R China.
    Chou, S. K.
    Natl Univ Singapore, Singapore.
    Desideri, U.
    Univ Pisa, Italy..
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Xiong, R.
    Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Beijing 100081, Peoples R China..
    Transformative innovations for a sustainable future2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 231, p. 1383-1388Article in journal (Refereed)
  • 305.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Sch Chem Sci & Engn, S-10044 Stockholm, Sweden..
    Sun, F.
    Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Peoples R China..
    Chou, S. K.
    Natl Univ Singapore.
    Desideri, U.
    Univ Pisa, Italy..
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Xiong, R.
    Beijing Inst Technol, Peoples R China..
    Transformative innovations for a sustainable future - Part III2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 227, p. 1-6Article in journal (Other academic)
  • 306.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Sch Chem Sci & Engn, S-10044 Stockholm, Sweden.;Malardalen Univ, Sch Business Soc & Energy, S-72123 Vasteras, Sweden..
    Sun, F.
    Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Beijing 100081, Peoples R China..
    Choug, S. K.
    Natl Univ Singapore, Dept Mech Engn, 9 Engn Dr 1,Blk EA 04-12, Singapore 117576, Singapore..
    Desideri, U.
    Univ Pisa, Dept Energy Syst Terr & Construct Engn, I-56122 Pisa, Italy..
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Xiong, R.
    Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Beijing 100081, Peoples R China..
    Transformative Innovations for a Sustainable Future - Part II2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 207, p. 1-6Article in journal (Other academic)
  • 307.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH Royal Institute of Technology.
    Wang, C.
    Tianjin University, China.
    Yu, J.
    State Grid Tianjin Electric Power Co., China.
    Jia, H.
    Tianjin University, China.
    Wu, J.
    Cardiff University, United Kingdom.
    Xu, T.
    Tianjin University, China.
    Zhang, Yang
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Renewable Energy Integration with Mini/Microgrid2018In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 145, p. 1-2Article in journal (Refereed)
  • 308.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Applied Energy, Royal Institute of Technology (KTH).
    Wennersten, R.
    Shandong University, China.
    Chen, B.
    Beijing Normal University, China.
    Yang, J.
    China University of Geosciences, China.
    Lv, Y.
    Qilu University of Technology, China.
    Sun, Q.
    Applied Energy, Royal Institute of Technology.
    Editorial2016In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 104, p. 1-2Article in journal (Refereed)
  • 309.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Institute of Technology, Sweden.
    Wu, J.
    Cardiff University, United Kingdom.
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Proceedings of the 9th International Conference on Applied Energy2017In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, p. 1-2Article in journal (Refereed)
  • 310.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH-Royal Institute of Technology, Sweden.
    Wu, J.
    Tongji University, China.
    Yang, Ying
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Wang, H.
    Tongji University, China.
    Wang, X.
    Tongji University, China.
    Editorial cleaner energy for cleaner city2018In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 152, p. 1-2Article in journal (Refereed)
  • 311.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. School of Chemical Science and Engineering, Royal Institute of Technology, 100 44 Stockholm, Sweden.
    Yang, H.
    Department of Building Services Engineering, The Hong Kong Polytechnic University.
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Chen, X.
    Department of Building Services Engineering, The Hong Kong Polytechnic University.
    Innovative solutions for energy transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018)2019In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 158, p. 1-2Article in journal (Other academic)
  • 312.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH.
    Yang, X.
    Xi'an Jiaotong University, Xi'an, China.
    Thermal energy storage2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, p. A1-A6Article in journal (Refereed)
  • 313.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH Royal Institute of Technology, Sweden.
    Zhai, Y.
    Asian Development Bank, Philippines .
    Wijayatunga, P.
    Asian Development Bank, Philippines .
    Mohamed, A. M.
    Minister of State for Environment and Energy, Maldives.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Renewable Energy Integration with Mini/Microgrid2016In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 103, p. 1-2Article in journal (Refereed)
  • 314.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Institute of Technology, Sweden.
    Zhai, Y.
    Asian Development Bank, Philippines.
    Wijayatunga, P.
    Asian Development Bank, Philippines.
    Mohamed, A. M.
    Minister of State for Environment and Energy, Maldives.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Renewable energy integration with mini/micro-grids2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 201, p. 241-244Article in journal (Refereed)
  • 315.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH Royal Inst Technol, Dept Chem Engn, Stockholm, Sweden..
    Zhang, Z.
    Chongqing University, Chongqing, China.
    Carbon Capture, Utilization and Storage (CCUS)2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 235, p. 1289-1299Article in journal (Refereed)
  • 316.
    Yan, Jinyue
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Zhao, L.
    National Strategy for Sustainable Energy Crops in China2009Book (Other (popular science, discussion, etc.))
  • 317.
    Yang, Hongxing
    et al.
    Hong Kong Polytech Univ, Hong Kong, Hong Kong, Peoples R China..
    Leung, Dennis Y. C.
    Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China..
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Stockholm, Sweden..
    First International Congress on Applied Energy, Hong Kong, January 5-7, 20092010In: International Journal of Green Energy, ISSN 1543-5075, E-ISSN 1543-5083, Vol. 7, no 3, p. 223-223, article id PII 922586049Article in journal (Other academic)
  • 318.
    Yang, J.
    et al.
    Royal Institute of Technology, Stockholm, Sweden.
    Olsson, A.
    Royal Institute of Technology, Stockholm, Sweden.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Chen, B.
    Beijing Normal University, Beijing, China .
    A hybrid life-cycle assessment of CO2 Emissions of a PV water pumping system in China2014In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, p. 2871-2875Article in journal (Refereed)
    Abstract [en]

    To achieve both water conservation and climate change mitigation benefits, photovoltaic water pumping (PVWP) system, which employs solar energy to fuel the water pumping system, has been a widely adopted solar energy technology in the last two decades. Although the PVWP system is driven by direct renewable flux, and has no onsite CO2 emissions, there must be energy consumed during the production of PV modules and the operation of water pumping system. Thus, we estimated the CO2 emissions of a PVWP system in Inner Mongolia, China in a life cycle perspective. A hybrid Life Cycle Analysis (LCA), which combines process-sum and economic input-out analysis was employed to reduce uncertainty. Results show that PVWP is a good choice for carbon emission reduction with carbon sequestration benefit much higher than the lifetime carbon emissions. The largest emitters are PV module and engineering, which should be the focus of carbon management of PVWP system.

  • 319.
    Yang, J.
    et al.
    University of Shanghai for Science and Technology, Shanghai, China.
    Yu, X.
    East China University of Science and Technology, Shanghai, China .
    An, L.
    East China University of Science and Technology, Shanghai, China .
    Tu, S. -T
    East China University of Science and Technology, Shanghai, China .
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    CO2 capture with the absorbent of a mixed ionic liquid and amine solution considering the effects of SO2 and O22017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 194, p. 9-18Article in journal (Refereed)
    Abstract [en]

    Room-temperature ionic liquids (ILs) have recently been proposed as a potential candidate for CO2 capture. In this study, experiments were conducted in an absorption-desorption loop system to investigate the effects of SO2 and O2 on CO2 capture using an aqueous amine solution mixed with IL. The gas mixture containing CO2, O2, SO2 and N2 in the composition range of flue gas from a coal-fired power plant after flue gas desulfurization was selected as the feed gas. It was found that the addition of hydrophilic IL of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) to a monoethanolamine (MEA) aqueous solution reduced the losses of MEA and water by lowering the saturated vapour pressure of the mixed absorbent. For hydrophobic IL of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([hmim][Tf2N]), the MEA loss for 30 wt% MEA + 70 wt% [hmim][Tf2N] increased dramatically with the system running because carbonate, which was formed by MEA reacting with CO2, was insoluble in [hmim][Tf2N] at the absorber operation temperature of 323 K. The effects of O2 and SO2 were relatively insignificant for the MEA and water losses. The aqueous amine solution mixed with [bmim][BF4] showed good performances with a CO2 removal efficiency of above 90% and the SO2 concentration at the absorber outlet below 20 ppb. No obvious IL loss was detected. For the absorbent of 30 wt% MEA + 50 wt% [bmim][BF4] + 20 wt% H2O, the thermal energy consumption for absorbent regeneration is 33.8% lower than that of the aqueous MEA solution.

  • 320.
    Yang, J.
    et al.
    East China University of Science and Technology, Shanghai, China.
    Yu, X.
    East China University of Science and Technology, Shanghai, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering. Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Tu, S. -T
    East China University of Science and Technology, Shanghai, China.
    CO2 capture using amine solution mixed with ionic liquid2014In: Industrial & Engineering Chemistry Research, ISSN 0888-5885, E-ISSN 1520-5045, Vol. 53, no 7, p. 2790-2799Article in journal (Refereed)
    Abstract [en]

    It is a focus to reduce the energy consumption and operating cost of CO2 capture from low-pressure flue gas streams of power plants using an aqueous amine-based absorbent. In this study, CO2 capture experiments were conducted in an absorption-desorption loop system using amine-based absorbents. The gas mixture containing CO2, O 2, SO2, and N2 in the composition range of flue gas from coal-fired power plant after flue gas desulfurization was selected as the feed gas. For an aqueous amine solution, the largest contribution to monoethanolamine (MEA) loss was made by evaporation during desorption, followed by the formation of sulfate and heat-stable salts. To reduce MEA loss and meanwhile decrease the energy consumption during CO2 desorption, an aqueous amine solution mixed with ionic liquid (30 wt % MEA + 40 wt % [bmim][BF4] + 30 wt % H2O) was proposed. The energy consumption of the mixed ionic liquid solution for absorbent regeneration was 37.2% lower than that of aqueous MEA solution. The MEA loss per ton of captured CO2 for the mixed solution was 1.16 kg, which is much lower than that of 3.55 kg for the aqueous amine solution. No ionic liquid loss was detected. In addition, the mixed ionic liquid solution showed a low viscosity of 3.54 mPa s at 323 K, indicating that the ionic liquid disadvantage of high viscosity can be overcome for absorbent delivery of CO2 capture. 

  • 321.
    Yang, J.
    et al.
    East China University of Science and Technology, Shanghai, China .
    Yu, X.
    East China University of Science and Technology, Shanghai, China .
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Tu, S. -T
    East China University of Science and Technology, Shanghai, China .
    Dahlquist, Erik
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Effects of SO2 on CO2 capture using a hollow fiber membrane contactor2013In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 112, p. 755-764Article in journal (Refereed)
    Abstract [en]

    Membrane gas absorption technology is a promising alternative to conventional technologies for the mitigation of acid gases. In this study, with a polypropylene (PP) hollow fiber membrane contactor as absorber and a packed column as stripper, the influence of SO2 on the CO2 capture from coal-fired power plant flue gas was investigated in an absorption-desorption experimental set-up using aqueous monoethanolamine (MEA) as the absorbent. The experimental results showed that the MEA loss per ton captured CO2 increased with the addition of SO2, resulting in sharp decreases in CO2 removal efficiency and mass transfer rate of CO2 after initial several days of operation. This tendency is mainly attributed to the promotional effect of SO2 on the degradation of MEA by the formation of sulfate. Thus, it is necessary to regenerate MEA using a reclaimer in this case. The respective SO2 concentrations at the outlets of absorber and stripper remained constant values of 24 and 120ppb throughout the operation although the CO2 removal efficiency decreased dramatically with time. This co-capture of CO2 and SO2 could play an important role in further desulfuration, thus alleviating the burden of desulfuration to some extent and benefiting the subsequent CO2 purification and storage. More progresses are greatly needed in high-efficiency and stable absorbents, high-efficiency reclaimer, and methods to reduce MEA loss by evaporation.

  • 322.
    Yang, J.
    et al.
    East China University of Science and Technology, Shanghai, China.
    Yu, X.
    East China University of Science and Technology, Shanghai, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Tu, S. -T
    East China University of Science and Technology, Shanghai, China.
    Xu, M.
    East China University of Science and Technology, Shanghai, China.
    CO2 capture using absorbents of mixed ionic and amine solutions2014In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 61, p. 2849-2853Article in journal (Refereed)
    Abstract [en]

    Studies have been conducted to find new absorbents for post-combustion CO2 capture. To overcome the ILs' limits and meanwhile take their advantages, the mixed amine + IL + H2O solutions as CO2 capture absorbent were investigated in a CO2 absorption/desorption loop setup. It was found that with an increase in IL concentration, the viscosity of the mixed solution rose while the energy required for absorbent regeneration decreased. In addition, no IL loss was detected and the amine loss per ton of captured CO2 was considerably lower than that of aqueous amine solution. The viscosity of the best candidate of 30 wt% MEA + 40 wt% [bmim][BF4] + 30 wt% H2O is close to the value of aqueous amine solution, indicating that the ionic liquid disadvantage of high viscosity can be overcome for absorbent delivery of CO2 capture.

  • 323.
    Yang, Perry Pei-Ju
    et al.
    Georgia Inst Technol, Eco Urban Lab, Coll Architecture, Atlanta, GA 30332 USA.;Tongji Univ, Coll Architecture & Urban Planning, Sino US Eco Urban Lab, Shanghai, Peoples R China..
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH Royal Inst Technol, Sch Chem Sci & Engn, SE-10044 Stockholm, Sweden.;Malardalen Univ, Sch Business Soc & Engn, SE-72123 Vasteras, Sweden..
    Modeling Urban Design with Energy Performance2016In: CUE 2015 - APPLIED ENERGY SYMPOSIUM AND SUMMIT 2015: LOW CARBON CITIES AND URBAN ENERGY SYSTEMS, 2016, p. 3-8Conference paper (Refereed)
    Abstract [en]

    Traditional urban design methods focus on the form-making process and lack performance dimensions such as energy efficiency. There are inherent differences between Urban Design as a model of decision-making for choosing form alternatives and Energy System Modeling as a model of evaluating and assessing system functions. To design a high energy performance city, the gap between the two models must be bridged. We propose a research design that combines the Urban Design Computational Model (UDCM) and the Optimization Model of Energy Process (OMEP) to demonstrate how an urban design computation can be integrated with an energy performance process and system. An evidence-based case study of community-level near zero energy districts will be needed for future work.

  • 324.
    Yang, X.
    et al.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Bai, Q.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Zhang, Q.
    Beijing Municipal Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Xicheng District, Beijing, China.
    Hu, W.
    Beijing Municipal Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Xicheng District, Beijing, China.
    Jin, L.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Institute of Technology (KTH), Stockholm, Sweden.
    Thermal and economic analysis of charging and discharging characteristics of composite phase change materials for cold storage2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 225, p. 585-599Article in journal (Refereed)
    Abstract [en]

    This study conducted both experimental and numerical investigations on the solidification behavior in a metal foam composite phase change material (PCM) for cold storage. Volume-average-method was adopted with the help of Forchheimer-Darcy equation to model the fluid flow through porous media. Experimental measurements were performed to validate the analytical model and the numerical method, with good agreement achieved. Local thermal equilibrium and non-equilibrium states were justified numerically and experimentally. Effect of pore morphological parameters (porosity and pore density) upon the solidification features of composite PCM were investigated. For the appliance of composite PCM to cold storage, techno-economic characteristics was also assessed. Results demonstrated that the full solidification time for metal foams with a porosity of 0.93 and 0.97 can be saved 87.5% and 76.7% respectively compared with pure water. It indicated that porosity of metal foam played a dominant role in heat transfer enhancement; while pore density seemed to have little influence on phase change behavior according to the results. Local natural convection in the unsolidified phase caused a remarkable promotion of the interface evolution, and the full solidification time with natural convection considered can be saved by 14.3% compared with pure conduction for the case with the same porosity of 0.97. The economic analyses indicated that using composite PCM was profitable with a short payback period less than 2 years.

  • 325.
    Yang, Xiaohu
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Bai, Q.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Guo, Z.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Niu, Z.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Yang, C.
    School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, Singapore.
    Jin, L.
    Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
    Lu, T. J.
    State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Department of Chemical Engineering and Technology/Energy Processes, Royal Institute of Technology (KTH), Stockholm, Sweden.
    Comparison of direct numerical simulation with volume-averaged method on composite phase change materials for thermal energy storage2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 229, p. 700-714Article in journal (Refereed)
    Abstract [en]

    Melting heat transfer in open-cell metal foams embedded in phase-change materials (PCMS) predicted by the volume-averaged method (VAM) was systematically compared with that calculated using direct numerical simulation (DNS), with particular attention placed upon the contribution of natural convection in the melt region to overall phase change heat transfer. The two-temperature model based on the assumption of local thermal non-equilibrium was employed to account for the large difference of thermal conductivity between metallic ligaments and PCM (paraffin). The Forchheimer extended Darcy model was employed to describe the additional flow resistance induced by metal foam. For the DNS, a geometric model of metal foam based on tetrakaidehedron cells was reconstructed. The DNS results demonstrated significant temperature difference between ligament surface and PCM, thus confirming the feasibility of local thermal non-equilibrium employed in VAM simulations. Relative to the DNS results, the VAM combined with the two-temperature model could satisfactorily predict transient solid-liquid interface evolution and local temperature distribution, although pore-scale features of phase change were lost. The presence of natural convection affected significantly the melting front shape, temperature distribution and full melting. The contribution of natural convection to overall phase change heat transfer should be qualitatively and quantitatively given sufficient consideration from both macroscopic (VAM) and microscopic (DNS) point of views. Besides, practical significance and economic prospective using metal foam in TES unit for WHR system to provide residential heating or hot water is discussed and analyzed.

  • 326.
    Yang, Xiaohu
    et al.
    Xi'an Jiaotong University, Xi'an, China.
    Lu, Zhao
    Xi'an Jiaotong University, Xi'an, China .
    Bai, Qingsong
    Xi'an Jiaotong University, Xi'an, China.
    Zhang, Qunli
    Bei Jing University of Civil Engineering and Architecture, Beijing, China .
    Jin, Liwen
    Xi'an Jiaotong University, Xi'an, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. The Royal Institute of Technology (KTH), Stockholm, Sweden .
    Thermal performance of a shell-and-tube latent heat thermal energy storage unit: Role of annular fins2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 202, p. 558-570Article in journal (Refereed)
    Abstract [en]

    This study conducts numerical investigations on melting process in a shell-and-tube latent heat thermal energy storage (LHTES) unit with annular fins. Commercial grade paraffin is employed as the phase change material (PCM) and water serves as the heat transfer fluid (HTF). Finite-volume-method (FVM) based numerical simulations are performed to investigate the effects of fin number, height and thickness on the phase change process. Particular attention is made to justify the contribution of local natural convection to the overall phase change process. Results demonstrate that the full melting time could be maximally reduced by 65% by inserting annular fins into PCM. For maximizing thermal performance, an optimal group fin parameter (fin number N = 31, thickness t/l = 0.0248 and interval l/L = 0.0313) is recommended for the present study.

  • 327.
    Yang, Ying
    et al.
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Zhang, Y.
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH Royal Institute of Technology, Stockholm, Sweden.
    Peak-shaving and profit-sharing model by Aggregators in residential buildings with PV- a case study in Eskilstuna, Sweden2017In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, p. 3182-3193Article in journal (Refereed)
    Abstract [en]

    Nowadays, photovoltaic (PV) system combined with energy storage systems is playing increasing significant role in residential buildings in Sweden. At the same time it brings reliability problems because of the intermittency of electricity production and exceptionally distributed reservoir which is followed by the peak-valley electricity prices and power grid fluctuations. There is an increasing need for new business model and economic paradigm for a third party aggregator to bridge the gap between Power Grid and end-users. Providing the valuable electricity services at scale and breaking regulatory arbitrage, aggregators help to deliver desired levels of residents’ engagements, value-added services and feasible level of unbundling of electricity market. This paper analyzes how the aggregators grab the indisputable business opportunity to interact between residents and Power Grid from the perspective of physical electricity flows and benefits share of peak-shaving. We employ a real case in Eskilstuna in Sweden to design new business model and validate using data. And the result indicates the compatibility of the aggregator service and its business model. It further sheds light on the pricing model of generated electricity by PV system, and benefits share ratio design.

  • 328.
    Yin, C.
    et al.
    Aalborg University, Aalborg East, Denmark.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Oxy-fuel combustion of pulverized fuels: Combustion fundamentals and modeling2016In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 162, p. 742-762Article in journal (Refereed)
    Abstract [en]

    Oxy-fuel combustion of pulverized fuels (PF), as a promising technology for CO2 capture from power plants, has gained a lot of concerns and also advanced considerable research, development and demonstration in the past years worldwide. The use of CO2 or the mixture of CO2 and H2O vapor as the diluent in oxy-fuel combustion, instead of N2 in conventional air-fuel combustion, induces significant changes to the combustion fundamentals, because of the great differences in the physical properties and chemical effects of the different diluents. Therefore, some fundamental issues and technological challenges need to be properly addressed to develop oxy-fuel combustion into an enabled technology. Computational Fluid Dynamics (CFD) modeling, which has been proven to be a very useful and cost-effective tool in research and development of conventional air-fuel combustion, is expected to play a similarly vital role in future development of oxy-fuel combustion technology. The paper presents a state-of-the-art review and an in-depth discussion of PF oxy-fuel combustion fundamentals and their modeling, which underpin the development of this promising technology. The focus is placed on the key issues in combustion physics (e.g., turbulent gas-solid flow, heat and mass transfer) and combustion chemistry (e.g., pyrolysis, gas phase combustion and char reactions), mainly on how they are affected in oxy-fuel conditions and how they are modeled and implemented into CFD simulations. The system performance of PF oxy-fuel combustion is also reviewed. Finally, the current status of PF oxy-fuel combustion fundamentals and modeling is concluded and the research needs in these regards are suggested. 

  • 329. Yong, C.
    et al.
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Asian biofuel development at a crossroad, Renewable Energy for Development2008Other (Other (popular science, discussion, etc.))
  • 330.
    Yu, A.
    et al.
    University of Waterloo, Canada.
    Chen, Z.
    University of Waterloo, Canada.
    Maric, R.
    University of Connecticut, United States.
    Zhang, L.
    National Research Council Canada, Canada.
    Zhang, J.
    National Research Council Canada, Canada.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Electrochemical supercapacitors for energy storage and delivery: Advanced materials, technologies and applications2015In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 153, p. 1-2Article in journal (Refereed)
  • 331.
    Yu, Jiabang
    et al.
    Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Inst Bldg Environm & Sustainabil Technol, Xian 710049, Shaanxi, Peoples R China..
    Yang, Ying
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Yang, Xiaohu
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Inst Bldg Environm & Sustainabil Technol, Xian 710049, Shaanxi, Peoples R China..
    Kong, Qiongxiang
    Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Inst Bldg Environm & Sustainabil Technol, Xian 710049, Shaanxi, Peoples R China..
    Yanhu, Liu
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol KTH, Dept Chem Engn & Technol Energy Proc, S-10044 Stockholm, Sweden..
    Effect of porous media on the heat transfer enhancement for a thermal energy storage unit2018In: CLEANER ENERGY FOR CLEANER CITIES / [ed] Wang, H Wang, X Yan, J Wu, J Yang, Y Li, H, ELSEVIER SCIENCE BV , 2018, p. 984-989Conference paper (Refereed)
    Abstract [en]

    Thermal energy storage (TES) can effectively recover thermal energy from low-temperature waste heat and it has now been received increasing attentions in practical engineering applications. Nevertheless, the relatively low thermal conductivity of engineering available phase change materials (PCMs) greatly limits the energy efficiency of TES applications. To enhance the phase change process, open-cell metal foam with a porosity of 0.94 and pore density of 15 PPI (pore per inch) was employed to be inserted either in heat transfer fluid (HTF) or in phase change material (PCM). A two-dimensional axis-symmetric problem was numerically solved and was validated through comparing temperature history at selected points. Results demonstrated that the involvement of open-cell metal foam can effectively enhance the phase change heat transfer, greatly reducing the full melting time. By comparing the four cases (without metal foam, inserting metal foam into HTF, PCM and both domains), the case that both HTF and PCM domains were embedded with porous media can provide the best heat transfer enhancement, from which practical applications with thermal engineering may benefit.

  • 332.
    Yu, X.
    et al.
    East China University of Science and Technology, Shanghai, China.
    An, L.
    East China University of Science and Technology, Shanghai, China.
    Yang, J.
    University of Shanghai for Science and Technology, Shanghai, China.
    Tu, S. -T
    East China University of Science and Technology, Shanghai, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Institute of Technology, Stockholm, Sweden.
    CO2 capture using a superhydrophobic ceramic membrane contactor2015In: Journal of Membrane Science, ISSN 0376-7388, E-ISSN 1873-3123, Vol. 496, p. 1-12, article id 13949Article in journal (Refereed)
    Abstract [en]

    The wetting and fouling of a membrane contactor deteriorated performance of the membrane gas absorption system for CO<inf>2</inf> post-combustion capture in coal-fired power plants. To solve these problems, in this study, a superhydrophobic ceramic (SC) membrane contactor was fabricated from an alumina tube with a ZrO<inf>2</inf> layer by means of grafting with fluoroalkylsilane (FAS) in a triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilane solution. The performances of the SC membrane contactor and polypropylene (PP) hollow fiber membrane contactor were compared through experiments conducted in a CO<inf>2</inf> absorption experimental system using a monoethanolamine (MEA) aqueous solution. Although the membrane fabrication cost per effective membrane area (CPA) of the SC membrane is 12.5 times that of the PP hollow fiber membrane, the SC membrane fabrication cost per absorbed CO<inf>2</inf> flux (CPC) was lower than that of the PP membrane. For the SC membrane, the detrimental effect of wetting can be alleviated by periodic drying to ensure a high CO<inf>2</inf> removal efficiency (>90%). Drying does not work for the PP membrane because the swelling of the PP fibers is irreversible. The SC membrane contactor exhibited a better anti-fouling ability than the PP membrane contactor because the superhydrophobic surface can self-clean. To ensure a continuous, high-efficiency CO<inf>2</inf> removal, a method was proposed in which two-hollow fiber SC membrane contactors operate alternately with the addition of periodic drying. The SC hollow fiber membrane contactor shows great potential in real industrial CO<inf>2</inf> post-combustion capture because of its good anti-wetting and anti-fouling features. 

  • 333.
    Yu, X.
    et al.
    East China University of Science and Technology.
    Wen, Z.
    East China University of Science and Technology.
    Lin, Y.
    East China University of Science and Technology.
    Tu, S. -T
    East China University of Science and Technology.
    Wang, Z.
    East China University of Science and Technology.
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Intensification of biodiesel synthesis using metal foam reactors2010In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 89, no 11, p. 3450-3456Article in journal (Refereed)
    Abstract [en]

    This study presents a technology for continuous and high-efficiency alkali-catalyzed biodiesel synthesis using a metal foam reactor combined with a passive mixer. A metal foam reactor with higher pore density produces smaller droplets that result in higher efficiency of biodiesel synthesis. Compared with conventional stirred reactors, the time for high methyl ester conversion can be shortened remarkably by the use of metal foam reactors. Experimental results reveal that a metal foam reactor of 50 pores per inch exhibits an energy consumption per gram biodiesel of 1.01 J g-1, merely 1.69% and 0.77% of energy consumption of the zigzag micro-channel and conventional stirred reactors, respectively. Moreover, biodiesel yield per reactor for the metal foam reactor is approximately 60 times that of the zigzag micro-channel reactor, thus overcoming the problem of numbering up an excessive number of reactors in the application. These results indicate the great potential of metal foam reactors in small-fuel biodiesel processing plants for distributive applications.

  • 334.
    Yu, Xinhai
    et al.
    E China Univ Sci & Technol, China.
    Yang, Jie
    Univ Shanghai Sci & Technol, China.
    Lu, Haitao
    E China Univ Sci & Technol, China.
    Tu, Shan-Tung
    E China Univ Sci & Technol, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Inst Technol, Stockholm, Sweden.
    Energy-efficient extraction of fuel from Chlorella vulgaris by ionic liquid combined with CO2 capture2015In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 160, p. 648-655Article in journal (Refereed)
    Abstract [en]

    Algae-sourced feedstocks remain confined to commercialization because of the high cost and energy consumption of biomass cultivation and feedstock extraction. In this study, to reduce the energy consumption required for algae extraction, experiments with Chlorella vulgais extraction by ionic liquids (ILs) combined with CO2 capture were conducted considering that captured CO2 by ILs can compensate the energy consumption of extraction. The results showed that the addition of CO2 to [BMIM][BF4] increased the lipid yield of Chlorella vulgaris from 68.0% to 75.6%. The properties of synthesized biodiesel from C vulgaris lipids met the UNE-EN 14214 European biodiesel standard except for oxidative stability. Protein denaturation and degradation were found during the lysis of algae cells. Approximately 82.2 wt.% of the total extracted proteins could be precipitated during both algae lysis and supernatant liquid drying. A microalgae-to-biofuel route including C vulgaris extraction and CO2 capture was proposed that involves wet algae input and delivery outputs of water, biodiesel, pyrolysis oil, proteins, sugars, biogas and glycerol. Fossil energy ratios (FER) based on the overall energy balance were 3.30 (n = 1, n is the volume ratio of IL to wet algae) and 3.84 (n = 2) for [BMIM][BF4] with CO2 capture, approximately 2.5 times those based on commercially available technologies. The possibilities of synthesizing novel ILs that show both high CO2 absorption and good abilities in cell wall breakage are discussed. More progress is greatly needed to reduce IL recovery loss. (C) 2015 Elsevier Ltd. All rights reserved.

  • 335.
    Yuting, Tan
    et al.
    Royal Institute of Technology, Sweden.
    Nookuea, Worrada
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Li, Hailong
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Thorin, Eva
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Institute of Technology, Stockholm, Sweden.
    Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2 Cryogenic Process: Part II. Evaluation of Viscosity and Thermal Conductivity Models2017In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, p. 4595-4600Article in journal (Refereed)
    Abstract [en]

    Viscosity and thermal conductivity are key transport properties in the design of plate-fin multi-stream heat exchanger in CO2 cryogenic processes. It is necessary to evaluate the reliabilities of viscosity and thermal conductivity models. In addition, the differences in design of multi-stream heat exchanger by using different property models need to be studied as well. In this paper, viscosity models and thermal conductivity models of CO2 mixtures with non-condensable gas impurities were evaluated separately by comparison with existing experimental data. Recommendations were given on model selections and their impact on the design of plate-finmulti-stream heat exchanger were analyzed.

    The results show that for viscosity, the uncertainty range of Wilke’s model is the smallest with a maximum absolute deviation of 6.1%. This model is therefore recommended to be used. For thermal conductivity, GERG model, with a maximum absolute deviation of 8.7% is preferred. The choice of thermal conductivity model has a noticeabl eimpact on the plate-fin multi-stream heat exchanger design, and the maximum deviation by using different thermal conductivity models is 7.5%

  • 336. Z, Wen
    et al.
    X, Yu
    S.T, Tu
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Biodiesel production from waste cooking oil catalyzed by TiO2-MgO mixed oxides2010In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 101, no 24, p. 9570-9576Article in journal (Other academic)
  • 337. Zeng, L.
    et al.
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Yu, X.
    Energy Efficiency Benchmarking in Chinese Cement Industry2007In: The 3rd International Green Energy Conference, 2007Conference paper (Refereed)
  • 338.
    Zeng, Lei
    et al.
    CLASP China, Chaoyang, Beijing, China.
    Li, J.
    CLASP China, Chaoyang, Beijing, China.
    Yu, Y.
    CLASP China, Chaoyang, Beijing, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Developing a products prioritization tool for energy efficiency standards improvements in China2014In: Energy Procedia, 2014, p. 2275-2279Conference paper (Refereed)
    Abstract [en]

    China is the world's largest producer and consumer of household appliances, lighting and other residential and commercial equipment. Since 1989, China has developed and implemented over 40 energy efficiency (EE) standards and over 20 mandatory energy labels for a wide range of domestic, commercial and selected industrial equipment. However, there are tremendous opportunities to capture additional savings through more stringent energy efficiency policies for major energy-consuming appliances. To assess the stringency of EE standards, this paper developed an integrated products prioritization tool for energy efficiency standards improvements that comprises three component analyses: (1) analysis of market data, (2) quantification of energy savings potential, and (3) benchmarking China's EE standards to those of peer economies around the world. This integrated approach led to three independent but complementary studies, and an comprehensive analysis that resulted in a coherent set of policy recommendations on what products to prioritize for China's energy efficiency standards revisions, in order to maximize their energy savings.

  • 339.
    Zeng, Lei
    et al.
    Mälardalen University, Department of Public Technology.
    Wang, Chuan
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Develop Landfill Gas-to-Energy Project under CDM in ChinaManuscript (Other academic)
  • 340.
    Zeng, Lei
    et al.
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology. Royal Institute of Technology, Stockholm, Sweden.
    NEEDS ASSESSMENT FOR SCALE-UP CLEAN ENERGY TECHNOLOGIES IN CHINA2009Conference paper (Refereed)
    Abstract [en]

    China is facing pressing energy demand to sustain its economic development. With increasedpressure on its deteriorated environment, and global climate change, Chinese government has setenergy conservation as one of the top policy priorities, and scaling up clean energy technologiesis regarded as one key to achieve this objective. This paper analyzes China’s current status andpotential of clean energy technologies, based on the comparison of economic potential and costeffectiveness of various clean energy solutions, detailed needs assessment are made for scale-upof clean energy in China. Recommendations are given on what interventions and activities shallbe taken to promote clean energy development in China.

  • 341.
    Zeng, Lei
    et al.
    Luleå University of Technology , Luleå, Sweden.
    Yan, Jinyue
    Luleå University of Technology , Luleå, Sweden.
    Policy, Institutional and Market Barriers to the Implementation of Clean Development Mechanisms (CDM) in China2005In: International Journal of Green Energy, ISSN 1543-5075, E-ISSN 1543-5083, no 2, p. 259-271Article in journal (Refereed)
    Abstract [en]

    China is the second largest emitter of greenhouse gases (GHG) in the world, with potentially about two thirds of total Certified Emission Reductions (CERs) for Asia on the world carbon market (Gruetter, 2002). Since 68% of its primary energy is from coal, China’s average energy intensity is 7.5 times higher than the EU and 4.3 times higher than the US (EU, 2003). Therefore, introducing advanced clean technologies and management to China represents opportunities for Annex I countries to obtain low-cost CERs through CDM projects, and access to one of the largest potential energy conservation markets in the world. CDM can provide a win-win solution for both China and Annex I countries, and the Chinese government considers that the introduction of CDM projects can bring advanced energy technologies and foreign investment to China, thereby helping China’s sustainable economy and generating CERs. As energy efficiency is generally low and carbon intensity is high in both China’s energy supply and demand sectors, numerous options exist for costeffective energy conservation and GHG mitigation with CDM. This paper reviews current Chinese policies and administrative and institutional settings for CDM cooperation, and discusses existing policy, institutional and other barriers in the energy market by drawing on observations and experience from previous initiatives such as Cleaner Production and energy efficiency. Some options to remove these barriers are addressed. In order to make CDM projects feasible, China’s government needs to promote awareness, streamline administrative

  • 342.
    Zhang, C.
    et al.
    KTH, Stockholm, Sweden.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH, Stockholm, Sweden.
    Liu, C.
    Swedish Road and Transport Research Institute, Stockholm, Sweden.
    Wang, K.
    Beijing Institute of Technology, Beijing, 100081, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH, Stockholm, Sweden.
    Crowdfunding preferences for a sustainable milk product with integrated photovoltaic water pumping system in China2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 255, article id 113694Article in journal (Refereed)
    Abstract [en]

    This paper studies the role of potential investors in financing renewable energy systems—specifically, relating to crowdfunding as a financing mechanism, with the enhancement of internet and social-media tools. The research question in this study is whether crowdfunding with a novel socio-technical product reward program attracts potential customers to a more sustainable milk product with a specific integrated photovoltaic water pumping (PVWP) system. The particular case study we empirically investigated is product reward crowdfunding in dairy milk production in China. The milk production chain was supplied by PVWP system integration, which generated solar energy both for feed production for dairy cows and for the operation of dairy farms. 48 semi-structured in-depth interviews were conducted between the research team and customers in order to perform qualitative analyses of the determinants of customers’ milk purchase behaviors. In addition, 357 online surveys were collected for quantitative analysis. Binary and ordered probit regressions were employed to use survey date to systematically estimate purchase intention and willingness-to-pay for sustainable milk. Customer behaviors, environmental consciousness, and individual socio-demographic factors were investigated as potential explanatory variables. Over 82% of the survey participants showed intentions to purchase the sustainable milk with the PVWP system. In the survey and interview samples, results showed that milk quality, nutrition improvement, emissions reduction, and environmental benefits attributed to the integrated PVWP system were the major factors considered by interviewees who showed intentions to purchase the crowdfunded dairy milk. Regression model results suggested that potential customers with higher income levels, and those of parenting age, and those with young children or planning to have children, had a higher willingness-to-pay than other customers for the crowdfunded sustainable dairy milk. The familiarity with and popularity of online shopping and pre-sale purchases in China made customers more open to and proactive towards pre-pay and crowdfunding mechanisms. This article evaluated key factors which may influence potential customers for crowdfunding, and used a discrete choice model to estimate customers’ willingness-to-pay for reward-based projects. These results could help producers of sustainable milk products to identify potential target groups in China and estimate market demand. This exploratory study could provide a framework with both quantitative and qualitative assessment of crowdfunding for renewable energy systems in a national or international context. 

  • 343.
    Zhang, C.
    et al.
    School of Chemical Science and Engineering, Royal Institute of Technology, 100 44, Stockholm Sweden.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. School of Business, Society and Engineering, Mälardalen University, 721 23 Västerås, Sweden; School of Chemical Science and Engineering, Royal Institute of Technology, 100 44, Stockholm Sweden.
    Liu, C.
    Division of Traffic Analysis and Logistics, Swedish Road and Transport Research Institute, 100 44 Stockholm, Sweden.
    Wang, K.
    Center for Energy and Environmental Policy Research & School of Management and Economics, Beijing Institute of Technology, 100081 Beijing, China.
    Zhang, Y.
    School of Chemical Science and Engineering, Royal Institute of Technology, 100 44, Stockholm Sweden.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. School of Business, Society and Engineering, Mälardalen University, 721 23 Västerås, Sweden; School of Chemical Science and Engineering, Royal Institute of Technology, 100 44, Stockholm Sweden.
    Purchase Intention for Crowd-funded Milk Products with Integrated Photovoltaic Water Pumping Systems in China2019In: Energy Procedia, Elsevier Ltd , 2019, Vol. 159, p. 503-508Conference paper (Refereed)
    Abstract [en]

    In comparison with current financing mechanisms for renewable energy systems, crowd-funding financing mechanism offers a new potential source of financing with recent use of social media. Crowd-funding financing mechanism can also increases the social supports for renewable energy systems as users and investors turn to be more actively engaged in energy systems. As a new potential source of financing, crowd-funding mechanism has different forms, including donation, lending, equity and product reward approaches. In this paper, discrete choice model was used to explore whether crowd-funding financing with a novel sociotechnical product reward practice, has the attractions for potential customers to pay for a more sustainable milk product with distributed photovoltaic (PV) system. We empirically investigated the reward-base crowd funding with the specific integrated photovoltaic water pumping (PVWP) system in dairy milk production in China. 48 in-depth interviews were adopted for qualitative analysis of determinants of customer milk purchase decision. The ordered probit regression was employed with 357 online surveys to systematically estimate the purchase intention for the online-crowd-funding sustainable milk. Customer behaviours, environmental consciousness, and the individual socio-demographic factors were tested as potential explanatory variables. In the survey and depth interview samples, we found interviewees as potential customers showed strong purchase intentions to the crowd funding dairy milk for noticing milk quality and nutritious improvement, emission reduction and environmental benefits by the integrated PVWP system. In our findings of the regression results, the females, customers with young children or planning to have children were found with higher willing to purchase than other customers for crowd funding the sustainable dairy milk. The familiarity and popularity with online shopping and pre-sale purchase in China made customers more open and active towards pre-pay and crowd-funding mechanism.

  • 344.
    Zhang, C.
    et al.
    Royal Institute of Technology, Stockholm, Sweden.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Yang, J.
    Royal Institute of Technology, Stockholm, Sweden.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Analysis of Distributed Photovoltaic Financing: A Case Study Approach of Crowd-funding with Photovoltaic Water Pumping System in Microgrids2016In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 103, p. 387-393Article in journal (Refereed)
    Abstract [en]

    Distributed photovoltaic (PV) system is playing an increasingly significant role in the fast growing global PV market, as a renewable power supply source. In rural and remote areas, the integrated PV technology with remote micro-grid offers a potential solution for agriculture and small businesses to access to clean, reliable and efficient energy source. As the cost of solar PV modules continues to show a downward tendency, the distributed PV systems with remote micro-grid are capable to meet growing energy demand with affordable price. Meanwhile, a series of policies and actions have been enacted in China since 2013, to motivate the distributed-generation PV development as equal as large-scale PV development. However, compared to coal-fired power plants or large-scale PV systems, a barrier exists in securing financing of distributed PV systems, which has high up-front costs and the risk of commercializing renewable energy initiatives. Under current market incentives and barriers, this paper studies the existing financing methods in distributed PV systems with remote distributed micro-grids. In comparison with other financing sources, a case study approach is employed with distributed PV water pumping system in China to introduce crowd-funding as a new source of financing in distributed PV systems. Through the SWOT analysis, this paper identifies a capacity for new financial approach of crowd-funding with PVWP deployment. The scenario is modelled for different stakeholders and organization forms that target social network interactions in crowd-funding, and the results provide insights for incentives and policy.

  • 345.
    Zhang, C.
    et al.
    Energy Processes Division, Royal Institute of Technology, Stockholm, Sweden.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Energy Processes Division, Royal Institute of Technology, Stockholm, Sweden.
    Yang, J.
    School of Humanities and Economic Management, China University of Geosciences, Beijing, China.
    Yu, C.
    Department of Earth System Science, Tsinghua University, Beijing, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Energy Processes Division, Royal Institute of Technology, Stockholm, Sweden.
    Economic assessment of photovoltaic water pumping integration with dairy milk production2018In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 177, p. 750-764Article in journal (Refereed)
    Abstract [en]

    As dairy consumption grows, domestic dairy farms face challenges in reducing the cost of feeds and the production of high-quality milk for market demands. This paper aims to introduce and integrate solar energy into the milk production chain to investigate its economic performance. By collecting data on milk production processes from 11 dairy farms in China, we quantified electricity usage and costs of milk production to identify the best and worst cases. Crop yields response to the water demand and the electricity requirements of the dairy farms were considered. The study simulated scenarios of self-sufficiency at 20%, 80%, and 100%, in the identified farms by integrating a photovoltaic water pumping (PVWP) system to provide both power and water for alfalfa and other feeds’ irrigation and subsequent milk production. We evaluated annual discounted cost, revenue and net profit under each scenario and case. The results showed that a dairy farm with an integrated PVWP system and self-sufficient feeds would lead to value add-ins, such as electricity saving with solar energy generation, economic cost saving of crops, and CO2 emission reduction. The analysis on return on investment (ROI) and internal rate of return (IRR) revealed that not all the self-sufficient feeds can bring positive marginal profit. Among the investigated scenarios and cases, the dairy farm marked out by the highest ROI with 3.12 and IRR with 20.4%, was the farm where the integrated PVWP system was used to reach 20% self-sufficiency (self-production of only alfalfa). The other scenarios and cases with higher levels of self-sufficiency showed lower ROIs and IRRs. This indicates that high self-production levels of feeds decrease the total profit due to high investment cost. Sensitivity analyses of crop price and operational cost were conducted for ROI with single and double factor approaches. Scale and production of feeds proportions should be carefully considered in improving the economic performance of dairy milk production.

  • 346.
    Zhang, C.
    et al.
    Royal Institute of Technology, Sweden.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Yang, J.
    Royal Institute of Technology, Sweden.
    Zhang, J.
    China Petroleum Daily, Jia NO.3, AnHuali 2, ChaoYang District, Beijing, China Petroleum Daily, China.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Royal Institute of Technology, Sweden.
    Can Solar Energy be an Alternative Choice of Milk Production in Dairy Farms?: -A Case study of Integrated PVWP System with Alfalfa and Milk Production in Dairy Farms in China2017In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, p. 3953-3959Article in journal (Refereed)
    Abstract [en]

    As China's dairy consumption grows, both the domestic milk production and the importation of dairy products are increasing to meet market demands. The objective of this study was to quantify electricity usage and cost of milk production with data analysis of dairy farms and evaluate the potential alternative energy supply-solar energy generated by PV water pumping system (PVWP). We collected data in milk production processes from 11 dairy farms in China. By selecting the optimal dairy farm, we simulate the scenario of solar power generation with PVWP system to provide power both for milk and alfalfa production. With estimations of electricity saving, economic cost saving and CO2 saving on every kg milk produced under PVWP system, we conclude that scenario PVWP with alfalfa and milk production can results in value add-ins, new sources of revenue, energy supply and emission reductions. 

  • 347.
    Zhang, C.
    et al.
    Royal Institute of Technology, Stockholm, Sweden.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    CDM's influence on technology transfers: A study of the implemented clean development mechanism projects in China2015In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 158, no 15, p. 355-365Article in journal (Refereed)
    Abstract [en]

    Technology transfers through the Clean Development Mechanism (CDM) under the Kyoto Protocol is one of the most important catalysts in the cooperation between developed (Annex I) and developing (non-Annex I) countries for climate change mitigation. With the large-scale implementation of CDM projects in recent years, it is important to timely and comprehensively analyze the effectiveness of technology transfers in these implemented projects on the level of individual countries. In this context, China is of particular significance as it is the biggest host country of CDM projects in the world; 50% of total CDM projects implemented from 2007 to 2012 have issued Certified Emission Reductions (CERs) to 60% of all of the CDM projects. In this study, we evaluated the performance of technology transfers in an exclusive database of 754 CDM projects hosted by China between 2007 and 2012 with issued CERs since CERs were first issued in China. In addition, we developed a logistic regression approach using 11-variables that include a series of extended technology transfer-based indicators from the perspectives of project design, economic level, and technology capability that have not been studied in detail in the past. The results show that technology transfers are more likely to occur in large-sized projects with higher CER incomes, in projects with international participants, and in projects involving types such as HFC-23 reduction, fuel substitute, and N<inf>2</inf>O decomposition, in comparison to projects involving renewable energy. We observed that over 90% of the technology transfer projects only include importation of equipment or training to China. In our findings of the regression results, it shows that technology transfers occurred more often in regions with lower technology capabilities, less energy consumption, and a lower GDP growth rate. Supported by high local technology capability and the governmental strategy with independent innovation, the advantages of introducing technology from other countries are offset by local technology diffusion. In a market view, financial incentives hinder CDM host parties from introducing new equipment or trainings for the high marginal cost, unless the high marginal cost of technology transfer can be offset by a large CDM with a high CER income. Technology transfer is more income-driven than sustainability-driven at the present stage in China. In our analysis, the drive out effect between HFC-23 and renewable projects in CDM suggests China government to publish more effective incentives to attract more sustainable types of CDM projects with a higher level of technology innovation. The results are also discussed in the context of policy issues, which can be helpful for the decision makers when formulating future sustainable strategic plans and policy. 

  • 348. Zhang, Chi
    et al.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Liu, C.
    Zhang, Yang
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center. KTH, Sweden.
    Wang, K.
    Choice Preferences And Willingness‐To‐Pay For Crowd‐Funding With Integrated Photovoltaic Water Pumping System In Dairy Milk Production In China2018Conference paper (Refereed)
  • 349.
    Zhang, Chi
    et al.
    School of Chemical Science and Engineering, Royal Institute of Technology.
    Campana, Pietro Elia
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Yang, Jan
    School of Chemical Science and Engineering, Royal Institute of Technology.
    Yan, Jinyue
    Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
    Economic performance of photovoltaic water pumping systems with business model innovation in China2017In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 33, no 1, p. 498-510Article in journal (Refereed)
    Abstract [en]

    Expansion by photovoltaic (PV) technologies in the renewable energy market requires exploring added value integrated with business model innovation. In recent years, a pilot trial of PV water pumping (PVWP) technologies for the conservation of grassland and farmland has been conducted in China. In this paper, we studied the added value of the PVWP technologies with an emphasis on the integration of the value proposition with the operation system and customer segmentation. Using the widely used existing PV business models (PV-roof) as a reference, we evaluated discounted cash flow (DCF) and net present value (NPV) under the scenarios of traditional PV roof, PVWP pilot, PVWP scale-up, and PVWP social network, where further added value via social network was included in the business model. The results show that the integrated PVWP system with social network products significantly improves the performance in areas such as the discounted payback period, internal rate of return (IRR), and return on investment (ROI). We conclude that scenario PVWP social network with business model innovation, can result in value add-ins, new sources of revenue, and market incentives. The paper also suggests that current policy incentives for PV industry are not efficient due to a limited source of revenue, and complex procedures of feed-in tariff verification.

  • 350.
    Zhang, Guoqiang
    et al.
    Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China.
    Yan, Jinyue
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Jin, Hongguang
    Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China.
    Polygeneration system with CO2 capture integrated with black liquor gasification in pulp and paper mills to produce methanol and power2009Conference paper (Refereed)
    Abstract [en]

    Based on the KAMa reference pulp and paper mill, polygeneration systems integrating a black liquor gasifier with CO2 captured by means of oxygen-fuel combustion and Selexol pre-combustion are introduced and studied. Compared with the reference system the polygeneration system produces additional 73.5MW methanol while reducing electricity product of 11.2MW with the investment incremental of 8.6%. The energy penalty due to CO2 capture and compression is 0.46 MJ electricity per kg CO2 avoided for oxygen-fuel method at a cost of 25.9$ /tonne CO2. However, the energy penalty can reach 1.33 MJ Methanol per kg CO2 avoided in the Selexol pre-combustion CO2 capture process at a cost of 48.6$ /tonne CO2.

45678 301 - 350 of 369
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