The performance of a new flat plate solar heat collector with perfect combination of high efficiency and low cost is investigated experimentally. The new system described in this study uses a novel micro heat pipe array as a key component for the system. One such flat plate heat collector contains over 300 micro heat pipes per 1m2 and the hydraulic diameter of the micro heat pipes is 0.4–1.0mm. A detailed heat transfer experimental study is conducted during daylight hours over several months, focusing on the collector efficiency and overall efficiency of the system as well as total heat loss factor. The results show that the collector’s maximum instantaneous efficiency is up to 88%. Compared with conventional evacuated glass tube solar water heater, the system offers the additional benefits of high pressure resistance, low weight, good reliability and durability, easy integration into buildings and absence of freezing during winter months. Besides, compared with traditional flat-plate solar water system which is mainly sheet-and-tube concept, the system also shows many advantages: higher efficiency, much cheaper, absence of tube-bonding and freezing etc. Therefore, the system proposes a unique substitute to common solar water heating systems.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4940-8
PROCEEDINGS PAPER
Experimental Investigation of a New Flat Plate Solar Heat Collector by Micro Heat Pipe Array
Yao-Hua Zhao,
Yao-Hua Zhao
Beijing University of Technology, Beijing, China
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Fei-Long Zou,
Fei-Long Zou
Beijing University of Technology, Beijing, China
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Yan-Hua Diao,
Yan-Hua Diao
Beijing University of Technology, Beijing, China
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Zhen-Hua Quan
Zhen-Hua Quan
Beijing University of Technology, Beijing, China
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Yao-Hua Zhao
Beijing University of Technology, Beijing, China
Fei-Long Zou
Beijing University of Technology, Beijing, China
Yan-Hua Diao
Beijing University of Technology, Beijing, China
Zhen-Hua Quan
Beijing University of Technology, Beijing, China
Paper No:
IHTC14-22442, pp. 361-368; 8 pages
Published Online:
March 1, 2011
Citation
Zhao, Y, Zou, F, Diao, Y, & Quan, Z. "Experimental Investigation of a New Flat Plate Solar Heat Collector by Micro Heat Pipe Array." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 5. Washington, DC, USA. August 8–13, 2010. pp. 361-368. ASME. https://doi.org/10.1115/IHTC14-22442
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