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The magnetocaloric effect can be quantified with the following equation: = ((,)) ((,)) where is the adiabatic change in temperature of the magnetic system around temperature T, H is the applied external magnetic field, C is the heat capacity of the working magnet (refrigerant) and M is the magnetization of the refrigerant.
Recognising the machine's potential, IBM arranged for Liebert to debut his invention at the World Computer Conference in Philadelphia. [ 1 ] [ 2 ] In 1965, Liebert founded Liebert Corporation as the first manufacturer air conditioning units with temperature and humidity controls specific for computer room applications.
In most coolers gas is compressed and expanded periodically. Well-known coolers such as the Stirling engine coolers and the popular Gifford-McMahon coolers have a displacer that ensures that the cooling (due to expansion) takes place in a different region of the machine than the heating (due to compression). Due to its clever design, the PTR ...
Tecumseh products began in a livery stable on Railroad Street in Hillsdale, Michigan in 1931 as the Hillsdale Machine and Tool Company. Originally founded by Charles Floyd Sage (better known as Bill), Ray W. Harrick , Olin Freed, Marshall Davis, and Wilbut Groauman in order to make parts for Ford Motors , the company began to grow quickly after ...
One variant, the Einstein–Szilard electromagnetic refrigerator used a Einstein–Szilard electromagnetic pump to compress a working gas, pentane. [2] Although the refrigerator was not a commercial success, the Einstein–Szilard pump was later used for cooling breeder reactors , where its inherent reliability and safety were important.
Gibson appliance advertisement, 1948. Gibson was founded by Joshua Hall in Belding, Michigan, in 1877 as the Belding-Hall Company selling cabinets that housed blocks of ice ().
Thermo King is an American manufacturer of transport temperature control systems for refrigerator trucks and trailers, refrigerated containers and refrigerated railway cars along with heating, ventilation and air conditioning systems for bus and passenger rail applications.
EMTP is an acronym for Electromagnetic Transients Program. It is a software tool used by power systems engineers to analyse electromagnetic transients (generically "EMT") and associated insulation issues. It is also a trademark for the commercial version of EMTP.