Mathematical Modeling and Optimized Design Aspects of Secondary Reflectors for Solar Parabolic Trough Collector

被引：0

作者：

Bharti, Alka ^{[1
]}

Mishra, Abhishek ^{[1
]}

Paul, Bireswar ^{[1
]}

机构：

[1] Motilal Nehru Natl Inst Technol Allahabad, Prayagraj 211004, India

来源：

ADVANCES IN MECHANICAL ENGINEERING, ICRIDME 2018 | 2020年

关键词：

Solar parabolic trough collector; Secondary parabolic reflector; Secondary triangular reflector; Temperature;

D O I：

10.1007/978-981-15-0124-1_123

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Nonuniform distribution of heat flux over the circumference of the receiver tube affects the efficiency and effectiveness of the solar parabolic trough collector system. Nonuniform heat flux over the circumference of the receiver tube causes circumferential temperature difference (CTD) that cause thermal stresses in the receiver tube and reduce the reliability of the receiver tube. To make the receiver tube more reliable, it is necessary to reduce CTD in the receiver tube by making some arrangement that can reflect heat flux at the top surface of the receiver also. In this study, theoretical design aspects for parabolic and triangular secondary reflectors and experimental performance analysis is represented. From the experimental analysis, the maximum temperature rise of 10.9, 9.6, and 7.4 degrees C is observed in case of parabolic trough collector with parabolic secondary reflector, with triangular secondary reflector and without a secondary reflector.

引用

页码：1393 / 1409

页数：17

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