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  2. ASHRAE Handbook - Wikipedia

    en.wikipedia.org/wiki/ASHRAE_Handbook

    The ASHRAE Handbook has had a variety of titles. [5] It began in 1922 as the ASH&VE Guide.In 1973 it became the ASHRAE Handbook, and in 1985 separate publication of inch-pound and international system units versions of the volumes began.

  3. Vapor-compression refrigeration - Wikipedia

    en.wikipedia.org/.../Vapor-compression_refrigeration

    A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.

  4. Heat pump and refrigeration cycle - Wikipedia

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

    Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

  5. Refrigeration - Wikipedia

    en.wikipedia.org/wiki/Refrigeration

    A refrigeration cycle describes the changes that take place in the refrigerant as it alternately absorbs and rejects heat as it circulates through a refrigerator. It is also applied to heating, ventilation, and air conditioning HVACR work, when describing the "process" of refrigerant flow through an HVACR unit, whether it is a packaged or split ...

  6. Cascade refrigeration - Wikipedia

    en.wikipedia.org/wiki/Cascade_refrigeration

    A cascade refrigeration cycle is a multi-stage thermodynamic cycle. An example two-stage process is shown at right. (Bottom on mobile) The cascade cycle is often employed for devices such as ULT freezers. [1] In a cascade refrigeration system, two or more vapor-compression cycles with different refrigerants are used.

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