A numerical and experimental study on a novel micro heat pipe PV/T system

被引：12
作者：
Li, Rui [1 ,2 ,3 ]
Li, Jinping [1 ,2 ,3 ]
Zhu, Junjie [4 ]
Liu, Xiaomin [1 ,2 ,3 ]
Novakovic, Vojislav [5 ]
机构：
[1] Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China
[2] Gansu Key Lab Complementary Energy Syst Biomass &, Lanzhou 730050, Peoples R China
[3] Gansu Key Lab Complementary Energy Syst Biomass &, Lanzhou 730050, Peoples R China
[4] Inst Energy Technol, Solar Energy Dept, N-2007 Kjeller, Norway
[5] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, NO-7491 Trondheim, Norway
来源：
ENERGY | 2023年 / 282卷
基金：
中国国家自然科学基金;
关键词：
Micro heat pipe PV/T; Temperature distribution; Thermal efficiency; Electrical efficiency; PERFORMANCE EVALUATION; THERMAL PERFORMANCE; INCLINATION ANGLE; WATER; THERMOSIPHON; COLLECTOR; SIMULATION; RATIO;
D O I：
10.1016/j.energy.2023.128746
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The photovoltaic/thermal (PV/T) module, as an efficient solar energy conversion device, has gained significant interest worldwide. Particularly, the novel PV/T with micro heat pipe (MHP-PV/T) exhibits favorable performances in cold regions, especially when the ambient temperature drops below 0 degrees C. This study focuses on the application of MHP-PV/T in Lanzhou, a city located in northwest China. During the typical winter season, the net average electrical efficiency and thermal efficiency can reach 12.8% and 26.4%, respectively. A two-dimensional mathematical model of MHP-PV/T was developed and validated with experimental results. The simulation results aligned well with the experiment data. Furthermore, it was observed that increasing the width and number of MHPs can lead to further improvements in the electrical efficiency and the thermal efficiency. Lastly, regression equations were established, and dimensionless processing was performed to correlate solar radiation intensity with electrical efficiency, thermal efficiency and total efficiency in Lanzhou.
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页数：12
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