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Carl von Linde, an engineering professor at the Technological University Munich in Germany, patented an improved technique of liquefying gases in 1876, creating the primary dependable and vapeeinweg environment friendly compressed-ammonia refrigerator. The absorption refrigerator was invented by Baltzar von Platen and Carl Munters from Sweden in 1922, while they had been nonetheless students on the Royal Institute of Technology in Stockholm. Fashionable refrigerators usually use a refrigerant referred to as HFC-134a (1,1,1,2-Tetrafluoroethane), which, in contrast to CFCs, does not deplete the ozone layer, though it still is a quite potent greenhouse gasoline.

There are stroll-in freezers; because the identify implies, they permit for one to stroll into the freezer. Most household freezers maintain temperatures from −23 to −18 °C (−9 to zero °F), although some freezer-solely models can obtain −34 °C (−29 °F) and decrease. A refrigerator, commonly shortened to fridge, is a industrial and vapeforuk residence equipment consisting of a thermally insulated compartment and a heat pump (mechanical, digital or chemical) that transfers heat from its inside to its external atmosphere in order that its inside is cooled to a temperature beneath the ambient temperature of the room.

This permits customers to leave meals in the primary refrigerator compartment uncovered, ezigaretteneinweg and also helps keep vegetables moist. Although these designs usually use a way more power than compressor refrigeration, other qualities comparable to silent operation or vapeeinweg the ability to make use of fuel can favor their use in small enclosures, vapedevice a cell environment or in environments the place failure of refrigeration should not be attainable.

Some models for small households fit under kitchen work surfaces, normally about 86 centimetres (34 in) excessive. Refrigerators and freezers could also be free standing, or constructed into a kitchen. These residence units often required the installation of the mechanical components, motor and compressor, in the basement or an adjoining room while the chilly box was positioned in the kitchen. Residence Ventilating Institute (HVI).

Commercial refrigerator and freezer items, which go by many different names, have been in use for almost forty years previous to the common house fashions. His first gadget, produced over the subsequent few years in several hundred models, was called DOMELRE. A refrigerator maintains a temperature a few levels above the freezing level of water. Nonetheless, ezigarettenmarkt because solely enough air is diverted to the refrigerator compartment, the freezer often re-acquires the set temperature quickly, until the door is opened.

Refrigeration has additionally contributed to a decrease in the standard of meals in some regions.

A large home refrigerator stands as tall as an individual and could also be about 1 metre (3.3 ft) large with a capacity of 600 litres (21 cu ft).