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  2. Refrigerator - Wikipedia

    en.wikipedia.org/wiki/Refrigerator

    There was a 1922 model that consisted of a wooden cold box, water-cooled compressor, an ice cube tray and a 0.25-cubic-metre (9 cu ft) compartment, and cost $714. (A 1922 Model-T Ford cost about $476.)

  3. Coefficient of performance - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_performance

    The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. [ 1 ] [ 2 ] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs.

  4. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    Vapor-compression refrigeration [6] For comparison, a simple stylized diagram of a heat pump's vapor-compression refrigeration cycle: 1) condenser, 2) expansion valve, 3) evaporator, 4) compressor (Note that this diagram is flipped vertically and horizontally compared to the previous one) [7] Temperature–entropy diagram of the vapor-compression cycle.

  5. Embraco - Wikipedia

    en.wikipedia.org/wiki/Embraco

    A Brazilian-made Embraco compressor fitted in a domestic refrigerator. Embraco is a manufacturer of compressors for refrigeration systems, founded in 1971 in Brazil.Embraco produces hermetic compressors, condensing units and sealed units, for domestic and commercial use.

  6. Compressor - Wikipedia

    en.wikipedia.org/wiki/Compressor

    It offers higher efficiency than reciprocating compressors due to less losses from the clearance volume between the piston and the compressor casing, it's 40% to 50% smaller and lighter for a given capacity (which can impact material and shipping costs when used in a product), causes less vibration, has fewer components and is more reliable ...

  7. Refrigeration - Wikipedia

    en.wikipedia.org/wiki/Refrigeration

    The use of gas eliminated the need for an electric compressor motor and decreased the size of the refrigerator. However, electric companies that were customers of GE did not benefit from a gas-powered unit. Thus, GE invested in developing an electric model. In 1927, GE released the Monitor Top, the first refrigerator to run on electricity. [35]

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