Absorption heat pumps use an ammonia-drinking water absorption cycle, instead of a vapor-compression cycle, to transfer heat. Ammonia is the refrigerant, and h2o could be the absorber. The ammonia condenses at one of several technique’s coils to release heat and evaporates at one other coil to soak up heat. This https://kingslists.com/story21632467/a-review-of-heat-pumps