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

Zhu, Jie and Huang, Hulin (2014) Design and thermal performances of Semi-Parabolic Linear Fresnel Reflector solar concentration collector. Energy Conversion and Management, 77 . pp. 733-737. ISSN 0196-8904

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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.

Item Type: Article
Keywords: Semi-Parabolic Linear Fresnel Reflector; Ray trace simulation; Nonuniform radiation distribution; Convection eddy; Thermal performance
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Architecture and Built Environment
Identification Number: 10.1016/j.enconman.2013.10.015
Depositing User: Eprints, Support
Date Deposited: 13 Jul 2017 15:12
Last Modified: 14 Jul 2017 08:29
URI: http://eprints.nottingham.ac.uk/id/eprint/44177

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