Refrigeration has been an indispensable part of both domestic and commercial establishments. However Commercial refrigeration is the one that is used in large and small commercial enterprises. One of the most popular types is the vapor-compression refrigeration. For air-conditioning of large public buildings, hotels, hospitals, restaurants, theater houses, as well as for the private residences and automobiles, this refrigeration process is widely used. In addition the technology is also used in the large-scale warehouses for storage of both food as well as beverages.
That is not all. You can see the refrigerated trucks and the cars on the railroads, vans on the road that provide industrial services are all part of such commercial refrigeration. There are also the oil refineries, chemical and the petrochemical processing plants that are dependent largely on the technologies for their proper functioning. In fact all these organizations are dependent on the vapor compression refrigeration technologies.
However it is also necessary to understand what the process of refrigeration is. It is basically the process of lowering down the temperature of any enclosed space by removal of the heat elements from the space and transferring the same elsewhere.
It is natural enough that the technology is also used as part of Catering Equipment in most of the commercial kitchens. Usually the device that performs the task or refrigeration is called the heat pump. They form the heart and soul of the device that absorbs as well as removes the heat from the space that is required to be cooled and transfers the heat elsewhere.