Kältemittelflüssigkeit

Kältemittelflüssigkeit refers to a substance used in refrigeration and air conditioning systems to absorb heat from a cold space and release it into a warmer space. This process is fundamental to how refrigerators, freezers, and air conditioners function. The liquid circulates through a closed loop, undergoing phase changes from liquid to gas and back to liquid. As it evaporates in the evaporator coil (the cold part of the system), it absorbs heat from the surroundings, thus cooling the space. The gaseous refrigerant then moves to the compressor, where its pressure and temperature are increased. Next, it flows to the condenser coil (the warm part of the system), where it releases the absorbed heat and condenses back into a liquid. This liquid then returns to the evaporator, repeating the cycle. Common examples of Kältemittelflüssigkeit include R-134a, R-410A, and various refrigerants containing ammonia or carbon dioxide, depending on the application and environmental regulations. The choice of Kältemittelflüssigkeit depends on factors such as operating temperature, efficiency, safety, and environmental impact, with a global trend towards refrigerants with lower global warming potential (GWP).