curiouscarbon
Science Penguin
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- Jun 29, 2020
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By using the photovoltaic panel as the evaporator for a heat pump, efficiency can be increased...
Heat Pumps Harmonizing Heating and Cooling Needs
Hello, People like lower temperatures for some times, and higher temperatures for other times. It seems to need a lot of electricity energy.. Heat pumps, especially in the form of refrigerant based compressor systems, and also peltier based systems, are capable of controlling heat flow with...
diysolarforum.com
More recently, however, PVT modules coupled with refrigeration system have been gaining attention too. Here, the compressor is powered by the PV panel while thee PVT module itself also serves as the evaporator of the refrigeration system. The evaporator cooling effect lowers the solar cell working temperature and improves the PV efficiency. This arrangement can give an even better performance as compared to air or water cooled systems.
Numerical Study of Integrated Solar PhotovoltaicThermal Module with a Refrigeration System for Air-Conditioning and Hot Water Production under the Tropical Climate Conditions of Singapore
Proposed System
The proposed PVTR system produces electricity, hot water and air-conditioning at the same time by integrating solar PVT and VCR systems. Electricity is produced by the PV cells, while the refrigeration system produces hot water at its condenser and air-conditioning (cooling) at a section of the evaporator through a fan coil unit (FCU). At the same time, the refrigeration system also cools the PVT modules to optimize their performance
The results show that attractive electrical and thermal perfor- mance can be achieved with a maximum annual cooling COP of 9.8 and a heating COP of 11.3. The PV e±ciency and power saving were 14% and 53%, respectively.