Direct expansion (DX) air conditioning systems are widely employed in residential and small- to medium-sized commercial buildings due to their compact design and ability to directly utilise ...

One of the major components in any refrigeration system is the evaporator, which is a heat exchanger that allows refrigerant to absorb heat energy from the product to be cooled. As the refrigerant ...

Italian researchers have reviewed different system configurations for photovoltaic-thermal solar-assisted heat pumps in buildings. They say that using the PV-thermal collector as the heat pump’s ...