The condensed, liquid refrigerant, while in the thermodynamic point out generally known as a saturated liquid, is next routed by way of an expansion valve in which it undergoes an abrupt reduction in tension. That strain reduction brings about the adiabatic flash evaporation of a part of the liquid refrigerant. https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/