Analysis of a vacuum-based photovoltaic thermal collector

Energy Reports

Saim Memon¹  Takao Katsura²  Essam M. Abo-Zahhad³  Ali Radwan³  Ahmed A. Serageldin⁴  Katsunori Nagano⁵ 

[1] Corresponding author at: Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El Mansoura 35516, Egypt.;Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El Mansoura 35516, Egypt;Division of Human Environmental Systems, Faculty of Engineering, Hokkaido University, N13-W8, Kita-ku, Sapporo 060-8628, Japan;London Centre for Energy Engineering, Division of Electrical and Electronic Engineering, School of Engineering, London South Bank University, 103 Borough Road, London, SE1 0AA, UK;Mechanical Power Engineering Department, Faculty of Energy Engineering, Aswan University, Aswan 81528, Egypt;

关键词: Vacuum-based photovoltaic thermal collector;    Vacuum pressure;    Thermal energy;    CFD;    Minichannel;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this study, a new design of photovoltaic thermal (PV/T) collector is proposed. This design uses a vacuum layer above the silicon wafer and not exists in the traditional PV/T collector. This layer is used to decrease the heat loss from the top surface of the PV/T collector. The analysis is conducted using a 3D thermal modeling. The new collector design with the vacuum layer achieved a 26.6% increase in the thermal power while keeping the electrical the same at Reynolds number of 50 and solar radiation of 1000 W/m2. In addition, the degradation of the vacuum pressure slightly influence the thermal performance while increasing the vacuum pressure from 0.01 Pa to 10 Pa. While further increase in the vacuum pressure from 10 Pa to 1.013×105 Pa substantially decreases the gained thermal power with insignificant increase in the electrical power.

【 授权许可】

Unknown