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Publications (10 of 11) Show all publications
Tan, Y., Nookuea, W., Li, H., Thorin, E. & Yan, J. (2019). Impacts of thermos-physical properties on plate-fin multi-stream heat exchanger design in cryogenic process for CO2 capture. Applied Thermal Engineering, 149, 1445-1453
Open this publication in new window or tab >>Impacts of thermos-physical properties on plate-fin multi-stream heat exchanger design in cryogenic process for CO2 capture
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2019 (English)In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 149, p. 1445-1453Article in journal (Refereed) Published
Abstract [en]

Oxy-fuel combustion is one of the most promising technologies for CO2 capture for power plants. In oxy-fuel combustion plants, cryogenic process can be applied for CO2 purification because the main impurities in flue gas are non-condensable gases. The multi-stream plate-fin heat exchanger is one of the most important components in the CO2 cryogenic system. In-depth understanding of the impacts of property on the heat exchanger is of importance for appropriate design. In order to investigate the impacts of properties on sizing the heat exchanger and to further identify the key properties to be prioritized for the property model development, this paper presented the design procedure for the plate-fin multi-stream heat exchanger for the CO2 cryogenic process. Sensitivity study was conducted to analyze the impacts of thermos-physical properties including density, viscosity, heat capacity and thermal conductivity. The results show that thermal conductivity has the most significant impact and hence, developing a more accurate thermal conductivity model is more important for the heat exchanger design. In addition, even though viscosity has less significant impact compared to other properties, the larger deviation range of current viscosity models may lead to higher uncertainties in volume design and annual capital cost of heat exchanger. 

Place, publisher, year, edition, pages
Elsevier Ltd, 2019
Keywords
CO2 mixture, Cryogenic process, Heat exchanger, Sensitivity study, Thermos-physical property
National Category
Energy Systems Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-42343 (URN)10.1016/j.applthermaleng.2018.12.066 (DOI)000460492300127 ()2-s2.0-85059479126 (Scopus ID)
Available from: 2019-01-17 Created: 2019-01-17 Last updated: 2019-03-29Bibliographically approved
Campana, P. E., Wästhage, L., Nookuea, W., Tan, Y. & Yan, J. (2019). Optimization and assessment of floating and floating-tracking PV systems integrated in on- and off-grid hybrid energy systems. Solar Energy, 177, 782-795
Open this publication in new window or tab >>Optimization and assessment of floating and floating-tracking PV systems integrated in on- and off-grid hybrid energy systems
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2019 (English)In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 177, p. 782-795Article in journal (Refereed) Published
Abstract [en]

Considering the targets of Thailand in terms of renewable energy exploitation and decarbonization of the shrimp farming sector, this work evaluates several scenarios for optimal integration of hybrid renewable energy systems into a representative shrimp farm. In particular, floating and floating-tracking PV systems are considered as alternatives for the exploitation of solar energy to meet the shrimp farm electricity demand. By developing a dynamic techno-economic simulation and optimization model, the following renewable energy systems have been evaluated: PV and wind based hybrid energy systems, off-grid and on-grid PV based hybrid energy systems, ground mounted and floating PV based hybrid energy systems, and floating and floating-tracking PV based hybrid energy systems. From a water-energy nexus viewpoint, floating PV systems have shown significant impacts on the reduction of evaporation losses, even if the energy savings for water pumping are moderate due to the low hydraulic head. Nevertheless, the study on the synergies between water for food and power production has highlighted that the integration of floating PV represents a key solution for reducing the environmental impacts of shrimp farming. For the selected location, the results have shown that PV systems represent the best renewable solution to be integrated into a hybrid energy system due to the abundance of solar energy resources as compared to the moderate wind resources. The integration of PV systems in off-grid configurations allows to reach high renewable reliabilities up to 40% by reducing the levelized cost of electricity. Higher renewable reliabilities can only be achieved by integrating energy storage solutions but leading to higher levelized cost of electricity. Although the floating-tracking PV systems show higher investment costs as compared to the reference floating PV systems, both solutions show similar competiveness for reliabilities up to 45% due to the higher electricity production of the floating-tracking PV systems. The higher electricity production from the floating-tracking PV systems leads to a better competitiveness for reliabilities higher than 90% due to lower capacity requirements for the storage systems.

Place, publisher, year, edition, pages
Elsevier Ltd, 2019
Keywords
Floating photovoltaics, Optimization, Shrimp farming, Thailand
National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-41773 (URN)10.1016/j.solener.2018.11.045 (DOI)000456222500077 ()2-s2.0-85057745302 (Scopus ID)
Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2019-02-07Bibliographically approved
Nookuea, W., Zambrano, J., Tan, Y., Li, H., Thorin, E. & Yan, J. (2017). Comparison of Mass Transfer Models on Rate-Based Simulations of CO2 Absorption and Desorption Processes. Paper presented at 9th International Conference on Applied Energy, ICAE 2017; Cardiff; United Kingdom; 21 August 2017 through 24 August 2017. Energy Procedia, 142, 3747-3752
Open this publication in new window or tab >>Comparison of Mass Transfer Models on Rate-Based Simulations of CO2 Absorption and Desorption Processes
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, p. 3747-3752Article in journal (Refereed) Published
Abstract [en]

One of the keys available options for the large scale carbon capture and storage is the solvent-based post-combustion capture. Due to the high reactivity between CO2 and aqueous amine solutions, chemical absorption is suitable for capturing the CO2 at low concentration such as from the flue gas. From techno-economic analyses of the CO2 chemical absorption plant, absorber and desorber columns are the main cost of the purchased equipment. Since the process involves complex reactive separations, the accurate calculation of hydrodynamic properties, mass and energy transfer are of importance for the design of the columns. Several studies have been done on the impact of different process and property models on the equilibrium and rate-based simulation of the absorption site. However, the impact study of process and property models on the desorption site are still lacking. This paper performs rate-based simulations of CO2 absorption by Monoethanolamine. The software Aspen Plus was used for the simulations. Different mass transfer models were implemented for the mass transfer calculation in gas and liquid phases. The temperature and concentration profiles along the columns are reported and discussed.

National Category
Engineering and Technology Chemical Process Engineering
Research subject
Biotechnology/Chemical Engineering
Identifiers
urn:nbn:se:mdh:diva-36234 (URN)10.1016/j.egypro.2017.12.271 (DOI)000452901603140 ()2-s2.0-85041529278 (Scopus ID)
Conference
9th International Conference on Applied Energy, ICAE 2017; Cardiff; United Kingdom; 21 August 2017 through 24 August 2017
Available from: 2017-08-15 Created: 2017-08-15 Last updated: 2019-01-03Bibliographically approved
Tan, Y., Nookuea, W., Li, H., Thorin, E. & Yan, J. (2017). Cryogenic technology for biogas upgrading combined with carbon capture-a review of systems and property impacts. Energy Procedia, 142, 3741-3746
Open this publication in new window or tab >>Cryogenic technology for biogas upgrading combined with carbon capture-a review of systems and property impacts
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, p. 3741-3746Article in journal (Refereed) Published
Abstract [en]

CO2 makes a major contribution to the climate change, and biomass renewable energy and carbon capture and storage (CCS) can be deployed to mitigate the CO2 emission. Cryogenic process for biogas upgrading combined with carbon capture is one of the most promising technologies. This paper reviewed the state-of-the-art of cryogenic systems for biogas upgrading combined with carbon capture, and introduced the status and progress of property impacts on the cryogenic systems with emphasize on phase equilibrium. The existing cryogenic systems can be classified as flash liquefaction system, distillation system, and liquefaction combined with desublimation system. The flash liquefaction system produces biomethane and CO2 in lower purity than the other two systems. Thermodynamic optimization on the flash liquefaction system and liquefaction combined with desublimation system should be done further, and comprehensive comparison between three cryogenic systems needs to be carried out. As to the phase equilibrium, PR EOS is safe to be used in predicting VLE and SVLE with an independent thermodynamic model describing the fugacity of the solid phase. However, the impacts of binary mixing parameter, different EOS models and mixing rules, on the performance of the cryogenic system need to be identified in the future. 

Place, publisher, year, edition, pages
Elsevier Ltd, 2017
National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-38720 (URN)10.1016/j.egypro.2017.12.270 (DOI)000452901603139 ()2-s2.0-85041528629 (Scopus ID)
Available from: 2018-03-01 Created: 2018-03-01 Last updated: 2019-01-03Bibliographically approved
Tan, Y., Nookuea, W., Li, H., Thorin, E. & Yan, J. (2017). Evaluation of viscosity and thermal conductivity models for CO2 mixtures applied in CO2 cryogenic process in carbon capture and storage (CCS). Applied Thermal Engineering, 123, 721-733
Open this publication in new window or tab >>Evaluation of viscosity and thermal conductivity models for CO2 mixtures applied in CO2 cryogenic process in carbon capture and storage (CCS)
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2017 (English)In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 123, p. 721-733Article in journal (Refereed) Published
Abstract [en]

The cryogenic process is used for CO2 purification in oxy-fuel combustion power plant, and multi-stream heat exchanger is one of the most important components. Viscosity and thermal conductivity are key transport properties in the design of plate-fin multi-stream heat exchanger. It is necessary to evaluate the impacts of viscosity and thermal conductivity models on the design of the heat exchanger. In this paper, different viscosity models and thermal conductivity models for CO2 mixtures with non-condensable impurities were first evaluated separately by comparing the calculated results with experimental data. Results show that for viscosity, the absolute average deviation of KRW model is the smallest, which is 1.3%. For thermal conductivity, model developed by Ely and Hanley, with absolute average deviation of 3.5%, is recommended. The impact of property models on the design of plate-fin multi-stream heat exchanger was also analyzed. The thermal conductivity model has a noticeable impact on the plate-fin multi-stream heat exchanger design, and the deviation in design size of heat exchanger by using different thermal conductivity models may reach up to 7.5%. The future work on how to improve the property models was discussed. © 2017 Elsevier Ltd

Place, publisher, year, edition, pages
Elsevier Ltd, 2017
Keywords
CO2 cryogenic, CO2 mixture, Model evaluation, Thermal conductivity, Viscosity
National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-35796 (URN)10.1016/j.applthermaleng.2017.05.124 (DOI)000406564600067 ()2-s2.0-85019991865 (Scopus ID)
Available from: 2017-06-15 Created: 2017-06-15 Last updated: 2018-03-07Bibliographically approved
Tan, Y., Nookuea, W., Li, H., Thorin, E. & Yan, J. (2017). Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2Cryogenic Process: Part I. Heat Exchanger Modeling and Sensitivity Study. Paper presented at 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016. Energy Procedia, 05, 4587-4594
Open this publication in new window or tab >>Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2Cryogenic Process: Part I. Heat Exchanger Modeling and Sensitivity Study
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 05, p. 4587-4594Article in journal (Refereed) Published
Abstract [en]

The multi-streamplate-finheat exchanger is one of the most important componentsin the CO2 cryogenic system. Appropriate design methodology and in-depth analysis of property on the heat exchanger are of importance. This paper, as part I of the two-paper series, presented the design procedure for the multi-stream plate-fin heat exchangerin CO2 cryogenic process. Sensitivity study was also conducted to analyze the impacts of thermos-physical properties including density, viscosity, heat capacity and thermal conductivity.

The results show that thermal conductivity has the most significant impact and it should be prioritized to develop a more accurate thermal conductivity model for the heat exchanger design. In addition, viscosity has least significant impact but the higher uncertainty range of viscosity may lead to a higher possible deviation in volume design.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
Thermo-physical property, CO2 mixture, heat exchanger, CO2 cryogenic, sensitivity study
National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-34279 (URN)10.1016/j.egypro.2017.03.990 (DOI)000404967904105 ()2-s2.0-85020744217 (Scopus ID)
Conference
8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016
Available from: 2016-12-18 Created: 2016-12-18 Last updated: 2018-07-25Bibliographically approved
Yuting, T., Nookuea, W., Li, H., Thorin, E. & Yan, J. (2017). Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2 Cryogenic Process: Part II. Evaluation of Viscosity and Thermal Conductivity Models. Energy Procedia, 105, 4595-4600
Open this publication in new window or tab >>Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2 Cryogenic Process: Part II. Evaluation of Viscosity and Thermal Conductivity Models
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, p. 4595-4600Article in journal (Refereed) Published
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%

National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-37567 (URN)10.1016/j.egypro.2017.03.992 (DOI)000404967904106 ()2-s2.0-85020744268 (Scopus ID)
Available from: 2017-12-22 Created: 2017-12-22 Last updated: 2018-07-25Bibliographically approved
Nookuea, W., Wang, F., Yang, J., Tan, Y., Li, H., Thorin, E., . . . Yan, J. (2017). Viscosity data of aqueous MDEA–[Bmim][BF4] solutions within carbon capture operating conditions. Paper presented at 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016;. Energy Procedia, 105, 4581-4586
Open this publication in new window or tab >>Viscosity data of aqueous MDEA–[Bmim][BF4] solutions within carbon capture operating conditions
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, p. 4581-4586Article in journal (Refereed) Published
Abstract [en]

Post–combustion capture with chemical absorption shows higher potential for commercial scale application compared with other technologies. To capture CO2 from the industrial and power plant’s flue gases, aqueous alkanolamine solutions are widely used. However, several drawbacks from utilizing the aqueous alkanolamines such as MEA still need to be solved. For example, alkanolamine solutions require intensive energy for regeneration and cause severe corrosion to the equipment though they have high reactivity in capturing CO2. Ionic liquids have been of interest in the recent development of chemical absorption according to their unique characteristics including wide liquid range, negligible volatility and thermal stability. However, due to their high price, high viscosity and low absorption capacity compared to alkanolamines, ionic liquids are still non–desirable for industrial applications.

One possible solution to improve the performance of ionic liquids is to use mixtures of ionic liquids and alkanolamines. For a better understanding of the absorption using the mixture of aqueous alkanolamines and ionic liquids, the knowledge of thermo–physical properties of the solutions, especially the viscosity and density are of importance. This paper reports the measured viscosity of MDEA–[Bmim][BF4] aqueous mixtures at various temperatures and concentrations. It was found that the viscosity increase with an increase in [Bmim][BF4] concentration, but decrease with an increase in temperature. Moreover, the impact of temperature on the viscosity is more significant at low temperature range.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
MDEA, [Bmim][BF4], viscosity, chemical absorption, CO2 capture, ionic liquids
National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-34278 (URN)10.1016/j.egypro.2017.03.987 (DOI)000404967904104 ()2-s2.0-85020753490 (Scopus ID)
Conference
8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016;
Available from: 2016-12-18 Created: 2016-12-18 Last updated: 2018-07-27Bibliographically approved
Tan, Y., Nookuea, W., Li, H., Thorin, E. & Yan, J. (2016). Property impacts on Carbon Capture and Storage (CCS) processes: A review. Energy Conversion and Management, 118, 204-222
Open this publication in new window or tab >>Property impacts on Carbon Capture and Storage (CCS) processes: A review
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2016 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 118, p. 204-222Article in journal (Refereed) Published
Abstract [en]

The knowledge of thermodynamic and transport properties of CO2-mixtures is important for designing and operating different processes in carbon capture and storage systems. A literature survey was conducted to review the impact of uncertainty in thermos-physical properties on the design and operation of components and processes involved in CO2 capture, conditioning, transport and storage. According to the existing studies on property impacts, liquid phase viscosity and diffusivity as well as gas phase diffusivity significantly impact the process simulation and absorber design for chemical absorption. Moreover, the phase equilibrium is important for regenerating energy estimation. For CO2 compression and pumping processes, thermos-physical properties have more obvious impacts on pumps than on compressors. Heat capacity, density, enthalpy and entropy are the most important properties in the pumping process, whereas the compression process is more sensitive to heat capacity and compressibility. In the condensation and liquefaction process, the impacts of density, enthalpy and entropy are low on heat exchangers. For the transport process, existing studies mainly focused on property impacts on the performance of pipeline steady flow processes. Among the properties, density and heat capacity are most important. In the storage process, density and viscosity have received the most attention in property impact studies and were regarded as the most important properties in terms of storage capacity and enhanced oil recovery rate. However, for physical absorption, physical adsorption and membrane separation, there has been a knowledge gap about the property impact. In addition, due to the lack of experimental data and process complexity, little information is available about the influence of liquid phase properties on the design of the absorber and desorber for chemical absorption process. In the CO2 conditioning process, knowledge of the impacts of properties beyond density and enthalpy is insufficient. In the transport process, greater attention should focus on property impacts on transient transport processes and ship transport systems. In the storage process, additional research is required on the dispersion process in enhanced oil recovery and the dissolution process in ocean and saline aquifer storage.

National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-31460 (URN)10.1016/j.enconman.2016.03.079 (DOI)000375817200020 ()2-s2.0-84962074396 (Scopus ID)
Available from: 2016-04-22 Created: 2016-04-22 Last updated: 2017-11-30Bibliographically approved
Tan, Y., Nookuea, W., Li, H., Thorin, E., Zhao, L. & Yan, J. (2015). Property impacts on performance of CO2 pipeline transport. Paper presented at 7th International Conference on Applied Energy (ICAE), MAR 28-31, 2015, Abu Dhabi, U ARAB EMIRATES. Energy Procedia, 75, 2261-2267
Open this publication in new window or tab >>Property impacts on performance of CO2 pipeline transport
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2015 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 75, p. 2261-2267Article in journal (Refereed) Published
Abstract [en]

Carbon Capture and Storage (CCS) is one of the most potential technologies to mitigate climate change. Using pipelines to transport CO2 from emission sources to storage sites is one of common and mature technologies. The design and operation of pipeline transport process requires careful considerations of thermo-physical properties. This paper studied the impact of properties, including density, viscosity, thermal conductivity and heat capacity, on the performance of CO2 pipeline transport. The pressure loss and temperature drop in steady state were calculated by using homogenous friction model and Sukhof temperature drop theory, respectively. The results of sensitivity study show that over-estimating density and viscosity increases the pressure loss while under-estimating of density and viscosity decreases it. Over-estimating density and heat capacity leads to lower temperature drop while underestimating of density and heat capacity result in higher temperature drop. This study suggests that the accuracy of property models for example, more accurate density model, should be developed for the CO2 transport design. 

Keywords
Thermal-physical property; Sensitivity study; Pipeline transport; CCS
National Category
Environmental Sciences
Identifiers
urn:nbn:se:mdh:diva-29333 (URN)10.1016/j.egypro.2015.07.411 (DOI)000361030003082 ()2-s2.0-84947104769 (Scopus ID)
Conference
7th International Conference on Applied Energy (ICAE), MAR 28-31, 2015, Abu Dhabi, U ARAB EMIRATES
Available from: 2015-10-15 Created: 2015-10-15 Last updated: 2017-12-01Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0001-7328-1024

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