Solar-assisted heat pumps vs. air-source heat pumps

A group of researchers in Iran has analyzed the coefficient of performance and the energy consumption of a solar-assisted heat pumps and an air-source heat pumps and has found that three factors are crucial to determine their annual performance - irradiance changes, ambient temperature, and wind speed. An international group of scientists conducted a one-year comparative analysis of two types of heat pumps for water heating - direct-expansion solar-assisted heat pumps (DX-SAHPWHs) and air-source heat pumps (AHPWHs). Both systems were examined via numerical modeling, assuming they were deployed ...

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