Absorption heat pumps use an ammonia-h2o absorption cycle, in lieu of a vapor-compression cycle, to transfer heat. Ammonia would be the refrigerant, and h2o is definitely the absorber. The ammonia condenses at one of several process’s coils to launch heat and evaporates at the other coil to absorb heat. Benefit https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/