The principle of air conditioning refrigeration

Basic concept: Air conditioning cooling is a process known as the vapor compression refrigeration cycle. This process involves the change of the refrigerant in the air conditioning system, thereby transferring the heat inside the room to the outside.

Main components and functions:

Compressor: As the major part of the refrigeration system, the compressor is responsible for drawing in low-temperature and low-pressure refrigerant air and compressing it to transform it into high-temperature and high-pressure air. This process raises the temperature and pressure of the refrigerant, preparing it for subsequent heat release.

Condenser: After the high-temperature and high-pressure refrigerant air enters the condenser, it releases heat to the surrounding environment and gradually cools down and condenses into a medium-temperature and high-pressure liquid. During this process, the heat of the refrigerant is carried away by the outdoor air or water.

Expansion valve: When the medium-temperature and high-pressure refrigerant liquid flows through the expansion valve, it shall undergo a throttling and pressure-reducing process, turning into a low-temperature and low-pressure liquid. This process causes a sharp drop in the temperature and pressure of the refrigerant, creating conditions for its endothermic evaporation in the evaporator.

Evaporator: After the low-temperature and low-pressure refrigerant liquid enters the evaporator, it shall absorb the heat of the indoor air and evaporate into low-temperature and low-pressure air. In this way, the heat inside the room is transferred to the refrigerant, eventually the hot-air shall be cooled down.

Overview of the refrigeration process: The refrigerant absorbs heat from the room in the evaporator and turns into air, which is then sucked in by the compressor and compressed into high-temperature and high-pressure air. Subsequently, the high-temperature and high-pressure air releases heat in the condenser and condenses into a liquid. After passing through the expansion valve to throttle and reduce pressure, the liquid re-enters the evaporator to evaporate and absorb heat, thus completing one refrigeration cycle. This cycle continues constantly, transferring the heat inside the room to the outside to the indoor temperature.

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Introduction of Exhaust Fan

Introduction of Tubular Condenser

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Introduction of Exhaust Fan

Introduction of Tubular Condenser