In a vapour compression refrigeration cycle, the refrigerant absorbs heat in the evaporator.
- Condenser is where the refrigerant releases heat as it condenses from a gas to a liquid.
- Compressor compresses the refrigerant, raising its pressure and temperature, but it does not absorb heat.
- Expansion valve reduces the pressure of the refrigerant, causing a drop in temperature, but it is not the place where heat is absorbed.
- Evaporator is the part of the refrigeration cycle where the refrigerant absorbs heat from the surrounding environment, typically cooling a space or substance.
Therefore, the refrigerant absorbs heat in the evaporator.