Propane as refrigerant in heat pumps for electric buses

Propane as refrigerant in heat pumps for electric buses

Thanks to its excellent thermodynamic properties and its very low global warming potential, the natural, non-halogen refrigerant R290 (propane) is a particularly energy-efficient and environment-friendly refrigerant. However, propane is flammable and explosive. Therefore, in order to use propane safely for heating and cooling of electric busses, the layout of HVAC-system has to meet the special technical safety requirements.

For the full article (German only) please click here.