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Design and thermal performances of Semi-Parabolic Linear Fresnel Reflector solar concentration collector

Zhu, Jie; Huang, Hulin

Authors

Jie Zhu

Hulin Huang



Abstract

A Semi-Parabolic Linear Fresnel Reflector (SPLFR) solar concentrator is proposed in this paper. The SPLFR is formed by linear plate mirrors whose edges located at a parabolic line. The ray trace simulation results show the SPLFR has the same concentrating efficiency as that of the parabolic trough concentrator (PTC), but lower manufacture cost. The SPLFR concentrator has higher ground utilization ratio compared with that of Linear Fresnel Reflector (LFR) concentrator because it has no shading and blocking shortcomings. The SPLFR concentrated radiation distribution along the circumference of absorber pipe cross section is investigated and compared with that of LFR concentrator. The thermal performance of linear evacuated absorber for the SPLFR is simulated numerically as well. The nonuniform radiation distribution induces two convection eddies at each side of absorber pipe which enhances the heat transfer from the wall of absorber to the working fluid.

Journal Article Type Article
Publication Date Jan 1, 2014
Journal Energy Conversion and Management
Print ISSN 0196-8904
Electronic ISSN 0196-8904
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 77
APA6 Citation Zhu, J., & Huang, H. (2014). Design and thermal performances of Semi-Parabolic Linear Fresnel Reflector solar concentration collector. Energy Conversion and Management, 77, doi:10.1016/j.enconman.2013.10.015
DOI https://doi.org/10.1016/j.enconman.2013.10.015
Keywords Semi-Parabolic Linear Fresnel Reflector; Ray trace simulation; Nonuniform radiation distribution; Convection eddy; Thermal performance
Publisher URL http://www.sciencedirect.com/science/article/pii/S0196890413006353?via%3Dihub
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
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