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research-article

A comparative investigation of two types of MHPA flat plate solar air collector based on exergy analysis

[+] Author and Article Information
Tingting Zhu

Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, China
ttzhu24@126.com

Yanhua Diao

Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, China; Beijing Advanced Innovation Center for Future Internet Technology, No. 100 Pingleyuan, Chaoyang District, Beijing 100124, China
diaoyanhua@bjut.edu.cn

Yaohua Zhao

Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, China; Beijing Advanced Innovation Center for Future Internet Technology, No. 100 Pingleyuan, Chaoyang District, Beijing 100124, China
yhzhao29@126.com

C. Ma

Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, China
495929101@qq.com

T. Y. Wang

Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, China
1035736538@qq.com

J. Liu

Beijing Key Laboratory of Green Built Environment and Efficient Technology, Beijing University of Technology, Beijing 100124, China
1374895702@qq.com

1Corresponding author.

ASME doi:10.1115/1.4037385 History: Received May 15, 2017; Revised June 20, 2017

Abstract

In this study, a comparison investigation of two types of micro heat pipe array (MHPA) flat plate solar air collectors (FPSAC) based on exergy analysis has been conducted. The thermal performance of MHPA-type solar air collectors (SACs) with two different shape fins is experimentally evaluated. A detailed parametric study is also conducted to examine the effects of various fins, operation parameters, and inlet air temperature at different mass flow rates on thermal and exergy efficiencies. Results indicated that using V-shaped slotted fins at the specified range of mass flow rates can enhance exergy efficiency. Exergy efficiency can be considered as the main criterion to evaluate the performance of MHPA FPSACs. Attaching V-shaped slotted fins on the condenser section of MHPA is more effective than attaching rectangular fins at high mass flow rates. By contrast, the latter is more effective than the former at low mass flow rates.

Copyright (c) 2017 by ASME
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