The practical efficiency of commercial m-Si and CIS PV modules measured in reality by our group was less than 15% due to the higher temperature of the PV modules, and the rest is more than 85% of the exhaust solar energy. Environmental Heating It was previously reporte More
The practical efficiency of commercial m-Si and CIS PV modules measured in reality by our group was less than 15% due to the higher temperature of the PV modules, and the rest is more than 85% of the exhaust solar energy. Environmental Heating It was previously reported in 2020 that the principle of an environmentally friendly PV/T (photovoltaic/thermal) solar panel using m-Si PV module to use 71.3% of solar energy for electricity and 40°C water This panel was designed to confirm the principle, that is, it was an experimental PV/T solar panel. In this paper, a new environmentally friendly PV/T solar panel for use in BIPVT (photovoltaic) systems is presented. /integrated heating in the building) is proposed. The new panel uses a CIS PV module and all functions, including the heat exchanger using aluminum flat tubes, are housed in a panel box that is approximately the size of a simple CIS PV panel. PV/T Solar Panel Proposed 73.5 % of solar energy with 13.0% power generation efficiency and 60.5% heat collection efficiency in a 40°C hot water source in Yokohama, Japan. The efficiency is higher than the previous test panel. The proposed panel can also suppress heat radiation around 50°C even in the case of hot water of 60°C. The proposed PV/T solar panel can meet all residential thermal needs such as domestic hot water (DHW) and space heating or cooling using solar heat with less environmental heat load.
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