A heat pump is a device that uses the refrigeration cycle for heat recovery. Normally thermal energy transfers from a hot body to a cold body. A heat pump uses external energy to transfer thermal energy in the opposite direction, that is to absorb heat and then reject it to ‘heat sink’. The simplest example of a heat pump is a window air conditioner that absorbs heat from the room and rejects it to the outside. If a window air conditioner is turned around, it can provide heating for the room the winter. Instead of flipping the orientation, most heat pumps have a reversing mechanism (reversing valve) that switches the direction of the refrigeration cycle. In this way a heat pump can provide cooling in the summer and heating in the winter. The source of heat for the heat pump can be the air, water or the ground.
What is a heat pump?
By Osman Saleem| 2017-06-13T14:16:57+00:00 May 19th, 2017|Comments Off on What is a heat pump?