Distribution of Energy Density and Optimization on the Surface of the Receiver for Parabolic Trough Solar ConcentratorReport as inadecuate




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International Journal of Photoenergy - Volume 2015 2015, Article ID 120917, 10 pages -

Research Article

Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, China

Institute of Refrigeration and Cryogenics, MOE Key Laboratory for Power Machinery and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received 22 April 2014; Revised 6 September 2014; Accepted 16 September 2014

Academic Editor: Pramod H. Borse

Copyright © 2015 Fei Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The geometrical optics model about the offset effect of solar rays by the thickness of concentrating mirror and the diametric solar model were established. The radiant flux density on the surface of the receiver for parabolic trough solar concentrator was obtained by numerical calculation with the established models. Charge-coupled device CCD was used for testing gray image on the surface of the receiver for parabolic trough solar concentrator. The image was analyzed by Matlab and the radiant flux density on the surface of the receiver for parabolic trough solar concentrator was achieved. It was found that the result of the theory is consistent with that of the experiment, and the relative deviation on the focal length width was 8.7%. The geometrical structure of receiver based on parabolic trough solar concentrator was optimized, a new parabolic receiver has been proposed, and it has been shown that the optimized geometrical structure of receiver was beneficial to improve the working performance of the entire system.





Author: Fei Chen, Ming Li, and Peng Zhang

Source: https://www.hindawi.com/



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