Vapour-compression refrigeration or vapor-compression refrigeration system, in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method
Lysholm screw compressor
Figure 5: Commercial water-cooled liquid chiller installation for building air conditioning
Ferdinand Carré's ice-making device
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Refrigerants are working fluids that carry heat from a cold environment to a warm environment while circulating between them. For example, the refrigerant in an air conditioner carries heat from a coo
Vapor-compression refrigeration
…Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles…
In the stratosphere, ozone (O3) naturally cycles to oxygen gas (O2) and back when it absorbs solar energy (the Chapman cycle). When CFCs are present, sunlight releases chlorine atoms that catalytically convert O3 to O2: Cl reacts with O3 to form ClO and O2, and ClO is then converted back to Cl, which can destroy further ozone. The net result is more oxygen and less ozone.
Disposable refrigerant gas cylinders, using different colors for different refrigerants. (Current guidelines discourage color-coded cylinders.)