Journal
APPLIED THERMAL ENGINEERING
Volume 106, Issue -, Pages 651-660Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2016.06.003
Keywords
Heat pipe; Inclination angle; PV/T; Solar energy; Thermal efficiency
Funding
- National Science Foundation of China [NSFC 51476159, 51178442, 51206154, 51408578]
- Fundamental Research Funds for the Central Universities
- Dongguan Innovative Research Team Program [2014607101008]
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Two different heat pipe photovoltaic/thermal (PV/T) systems, namely, wickless heat pipe PV/T system and wire-meshed heat pipe PV/T system, were proposed. In this paper, the thermal performances of the two systems working on different inclination angles were experimentally investigated in an Enthalpy Difference Laboratory with a solar simulator. The thermal performance of the wire-meshed heat pipe is not as sensitive to the inclination angle as that of the wickless heat pipe. The wickless heat pipe PV/T system is recommended at latitudes higher than 20 degrees, whereas wire-meshed heat pipe PV/T system is suggested at latitudes lower than 20 degrees. Moreover, the thermal performances of both PV/T collectors at an inclination angle of 40 degrees were further investigated, in which case both heat pipes worked at optimum conditions. The thermal efficiency of the wickless heat pipe PV/T system and wire-meshed heat pipe PV/T system at zero reduced temperature was 52.8% and 51.5%, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
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