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Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators.Compression refrigerators typically use an HCFC or HFC, while absorption refrigerators typically use ammonia or water and need at least a second fluid able to absorb the coolant, the absorbent, respectively water (for ammonia) or brine (for water).
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 ).
Adsorption refrigeration has been extensively researched in recent years because the technology is often noiseless, non-corrosive and environmentally friendly. [5] The heat source for adsorption refrigeration can be fossil fuel, biomass fuel, nuclear fission, geothermal energy, waste heat, or solar thermal energy. [1]
[1] [2] In 1925, the company bought American rights to a Swedish patent for a continuous absorption refrigerator and started to focus on the gas refrigeration market. [2] The new model was available to consumers in 1926, and Servel quickly came to dominate the gas refrigerator market, its competition having all but disappeared within a few ...
These were absorption refrigerators, without any moving parts, obtained the necessary heat to drive the refrigeration process from either a kerosene or town gas burner or from an electric element. [1] [99] As the first of Hallstrom's refrigerators to use air cooling, the new model had a more aesthetically-pleasing and contemporary appearance.
The tricycle model is the template for the absorption refrigerator. Quantum tricycle absorption refrigerator. The device is composed from three baths where . Heat flows from the power reservoir and cold bath to the hot bath. The tricycle engine has a generic structure.
Carl Georg Munters (22 March 1897 – 1989) was a Swedish inventor, most known for inventing together with Baltzar von Platen the gas absorption refrigerator now sold by Electrolux. He also invented and patented a method of making foamed plastic, which was later rediscovered by Dow Chemical Company and used to make Styrofoam. [1]
An absorption refrigerator is similar to a regular compressor refrigerator in that the refrigeration takes place by evaporating a liquid with a very low (sub-zero) boiling point. In both cases, when a liquid evaporates or boils, it takes some heat away with it, and can continue to do so either until the liquid is all boiled, or until everything ...
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