Prediction and optimization of the performance of parabolic solar dish concentrator with sphere receiver using analytical function

RENEWABLE ENERGY

卷:53

Article

Huang, Weidong¹  Huang, Farong¹  Hu, Peng²  Chen, Zeshao² 

[1] Univ Sci & Technol China, Dept Earth Chem & Environm Sci, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230026, Anhui, Peoples R China

关键词: Optical analysis;    Solar dish collector;    Parabolic reflector;    Efficiency;    Optical error;    Optimization;   

DOI  :  10.1016/j.renene.2012.10.046

来源: Elsevier

【 摘 要 】

l Parabolic solar dish concentrator with sphere receiver is less studied. We present an analytic function to calculate the intercept factor of the system with real sun brightness distribution and Gaussian distribution, the results indicate that the intercept factor is related to the rim angle of reflector and the ratio of receiver angle to the optical error when the optical error is larger than or equal to 5 mrad, but is related to the rim angle, receiver angle and optical error in less than 5 mrad optical error. Furthermore we propose a quick process to optimize the system to provide the maximum solar energy to net heat efficiency for different optical error under typical condition. The results indicate that the parabolic solar dish concentrator with sphere receiver has rather high solar energy to net heat efficiency which is 20% more than solar trough and tower system including higher cosine factor and lower heat loss of the receiver. (C) 2012 Elsevier Ltd. All rights reserved.

【 授权许可】

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