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Food in a refrigerator with its door open. A refrigerator, commonly shortened to fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]
Frigidaire also produces a wide variety of refrigerators and freezers for the consumer market. Their model line-up includes refrigerator freezer units of several different types. The selection they offer includes traditional Top Freezer models, as well as more modern Side-By-Side and French Door styles.
The term is most often used for smaller systems, typically table-top size, with input powers less than about 20 kW. Some can have input powers as low as 2–3 W. Large systems, such as those used for cooling the superconducting magnets in particle accelerators are more often called cryogenic refrigerators. Their input powers can be as high as 1 MW.
The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd , who patented it in the U.S. on November 11, 1930 ( U.S. patent 1,781,541 ).
Kelvinator ad from 1920 Kelvinator refrigerator, c. 1926. The enterprise was established on September 18, 1914, in Detroit, Michigan, United States, by engineer Nathaniel B. Wales, who introduced his idea for a practical electric refrigeration unit for the home to Edmund Copeland and Arnold Goss.
By the late 1990s and the early 2000s, the idea of connecting home appliances to the Internet (Internet of Things) had been popularized and was seen as the "next big thing." [3] In June 2000, LG launched the world's first internet refrigerator, the Internet Digital DIOS. This refrigerator was unsuccessful because consumers saw it as unnecessary ...
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