
Fraunhofer Researchers Say Low-Charge Propane Heat Pump Sets Efficiency Record
The heat pump generated 12.8kW (3.6TR) of heating capacity with only 124g (4.4oz) of R290.
The heat pump generated 12.8kW (3.6TR) of heating capacity with only 124g (4.4oz) of R290.
Fraunhofer ISE has developed a heat pump based on propane that harnesses the natural refrigerant in a heat cycle.