Evaporation absorbs energy
At low pressure, refrigerant evaporates while taking in heat.
Compression raises pressure and temperature
A compressor supplies mechanical work.
Condensation releases heat
The hot refrigerant rejects energy to the surroundings.
An expansion device closes the cycle
Pressure drops before the refrigerant returns to the evaporator.
This page explains scientific concepts for general learning. It does not replace laboratory safety procedures, professional engineering guidance, or individualized medical advice.