In this study, a comparative investigation of two types of microheat 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 shaped 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.
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October 2017
Research-Article
A Comparative Investigation of Two Types of MHPA Flat-Plate Solar Air Collector Based on Exergy Analysis
T. T. Zhu,
T. T. Zhu
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
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Y. H. Diao,
Y. H. Diao
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China;
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
for Future Internet Technology,
No. 100 Pingleyuan,
Chaoyang District,
Beijing 100124, China
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Y. H. Zhao,
Y. H. Zhao
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China;
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
e-mail: yhzhao29@126.com
for Future Internet Technology,
No. 100 Pingleyuan,
Chaoyang District,
Beijing 100124, China
e-mail: yhzhao29@126.com
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C. Ma,
C. Ma
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
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T. Y. Wang,
T. Y. Wang
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
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J. Liu
J. Liu
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Search for other works by this author on:
T. T. Zhu
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Y. H. Diao
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China;
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
for Future Internet Technology,
No. 100 Pingleyuan,
Chaoyang District,
Beijing 100124, China
Y. H. Zhao
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China;
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
e-mail: yhzhao29@126.com
for Future Internet Technology,
No. 100 Pingleyuan,
Chaoyang District,
Beijing 100124, China
e-mail: yhzhao29@126.com
C. Ma
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
T. Y. Wang
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
J. Liu
Beijing Key Laboratory of Green Built
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
Environment and Efficient Technology,
Beijing University of Technology,
Beijing 100124, China
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received May 15, 2017; final manuscript received June 20, 2017; published online August 22, 2017. Assoc. Editor: M. Keith Sharp.
J. Sol. Energy Eng. Oct 2017, 139(5): 051011 (11 pages)
Published Online: August 22, 2017
Article history
Received:
May 15, 2017
Revised:
June 20, 2017
Citation
Zhu, T. T., Diao, Y. H., Zhao, Y. H., Ma, C., Wang, T. Y., and Liu, J. (August 22, 2017). "A Comparative Investigation of Two Types of MHPA Flat-Plate Solar Air Collector Based on Exergy Analysis." ASME. J. Sol. Energy Eng. October 2017; 139(5): 051011. https://doi.org/10.1115/1.4037385
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