Absorption heat pumps use an ammonia-water absorption cycle, in lieu of a vapor-compression cycle, to transfer heat. Ammonia would be the refrigerant, and water is the absorber. The ammonia condenses at one of the system’s coils to launch heat and evaporates at the other coil to absorb heat. Ammonia is https://atozbookmark.com/story20211792/top-latest-five-robur-heat-pumps-urban-news