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Techno-economic evaluation of an optical fiber based hybrid solar lighting system
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing, China.
School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
China Society, BeiCoal jing, China.
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2020 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 225, article id 113399Article in journal (Refereed) Published
Abstract [en]

Optical fiber solar lighting systems are an appealing approach for illumination applications with the aim of reducing energy consumption and greenhouse gas emissions from artificial lighting. This study presented the design, construction and assessment of an optical fiber based hybrid solar lighting system for illumination of interior spaces. The proposed system combines the features of optical fiber daylighting technology and photovoltaic power generation technology. Specifically, a secondary light concentrator was designed to improve the uniformity of flux distribution and solve the overheating problem of PMMA fibers. The technical feasibility of the hybrid solar lighting system was validated using the fabricated prototype in a 5 m2 darkroom during a whole day test. Experimental results showed that, an average illuminance of 105 lx at a distance of 2 m from the end of optical fiber bundle was achieved, saving 316.82 kWh and reducing 251.24 kg carbon dioxide emissions every year in the studied case. Finally, cost analysis of the proposed hybrid solar lighting system was carried out and compared with three conventional lighting systems. The total payback period of the hybrid solar lighting system was 3.7 years and further reduced to 1.7 years in mass production. In the studied case, the hybrid solar lighting system was economically competitive after 2 years and 12 years of operation in comparison with a 100 W incandescent bulb lighting system and a 30 W T8 fluorescent lamp lighting system, respectively.

Place, publisher, year, edition, pages
Elsevier Ltd , 2020. Vol. 225, article id 113399
Keywords [en]
Building illumination, Cost analysis, Optical fiber daylighting, Photovoltaic system, Carbon dioxide, Energy utilization, Gas emissions, Global warming, Greenhouse gases, Investments, Lighting fixtures, Optical fiber fabrication, Optical fibers, Photovoltaic cells, Solar power generation, Solar power plants, Textile fibers, Artificial lighting, Carbon dioxide emissions, Daylighting technology, Light concentrators, Optical fiber bundle, Photovoltaic power generation, Reducing energy consumption, Techno-economic evaluation, Lighting
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-52643DOI: 10.1016/j.enconman.2020.113399ISI: 000603328600003Scopus ID: 2-s2.0-85090563106OAI: oai:DiVA.org:mdh-52643DiVA, id: diva2:1502386
Available from: 2020-11-19 Created: 2020-11-19 Last updated: 2021-02-23Bibliographically approved

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Yan, Jinyue

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