Condenser (heat transfer)
A condenser is a heat exchanger used to condense a gaseous substance into a liquid state through cooling. In so doing, the latent heat is released by the substance and absorbed into the environment around it. Condensers are used for efficient heat rejection in many industrial systems. Condensers can be made in multiple designs and they come in many sizes ranging from small (hand-held) to very large (industrial-scale units used in plant processes). For example, a refrigerator uses a condenser to get rid of heat extracted from the interior of the unit to the outside air. This cools the food inside of it.