| Cabin temperature is determined by solar radiation passing through the windows and by heat transfer through the metal components. To ensure passenger comfort on extremely hot days, it is necessary to eliminate part of the existing heat. |
| Considering that heat propagates to wherever the temperature is lower, a component generating low temperatures is placed in the cabin. Inside this component, the refrigerant gas evaporates constantly. The heat necessary for this to happen is extracted from the air circulating through the evaporator. |
| The refrigerant gas that absorbs the heat is pumped by the air conditioning compressor. The compressing action of this component increases the thermal rate and the temperature of the refrigerant gas. Now its temperature is significantly higher than ambient temperature. |
| Refrigerant gas enters the condenser at high temperature. Due to the temperature gradient between the gas and outside temperature, the gas releases heat to the environment through the condenser. |
| Refrigerant gas is thus a transport medium for the thermal load. As the gas becomes necessary again, it returns to the evaporator. |
| Accordingly, the basic principle of any air conditioning system is a refrigerant gas loop The differences are in the composition of the components. |
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