Answer:
Heat pump
Step-by-step explanation:
heat pumps reverse the normal flow of thermal energy and are part of refrigerants and air conditioners. This is a device that transfers the heat from source to sink.
How the work?
They move thermal energy in a direction that is just opposite to its spontaneous heat transfer. They absorb the heat energy from cold space and then discharge that heat into a warm space.They use external power to do the heat transfer work.
Major components:
- A condenser,
- Expansion valve
- Evaporator
- Compressor.
- And lastly, a medium through which heat transfer occurs called refrigerant.
Hope it helps! :)