Kältemittelkreislauf
Kältemittelkreislauf describes the continuous process by which a refrigerant circulates through a refrigeration or air conditioning system to absorb and release heat. This cycle is fundamental to how these systems cool spaces or preserve goods. The process begins with the compressor, which increases the pressure and temperature of the refrigerant in its gaseous state. This hot, high-pressure gas then flows to the condenser, where it releases heat to the surroundings and transitions into a high-pressure liquid. The liquid refrigerant then passes through an expansion valve, where its pressure and temperature drop significantly. This cold, low-pressure liquid then enters the evaporator. Inside the evaporator, the refrigerant absorbs heat from the space or substance to be cooled, causing it to evaporate and become a low-pressure gas. This gas is then drawn back into the compressor, and the cycle repeats. The efficiency of the Kältemittelkreislauf is influenced by factors such as the type of refrigerant used, the operating pressures and temperatures, and the design of the system components. Understanding this cycle is crucial for diagnosing and repairing refrigeration issues. Different types of refrigerants have varying environmental impacts, leading to ongoing research and development into more sustainable alternatives.