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  2. Auto-defrost - Wikipedia

    en.wikipedia.org/wiki/Auto-defrost

    A defrost timer taken out of a household refrigerator. The defrost mechanism in a refrigerator heats the cooling element (evaporator coil) for a short period of time and melts the frost that has formed on it. [1] The resulting water drains through a duct at the back of the unit. Defrosting is controlled by an electric or electronic timer.

  3. Hygroscopy - Wikipedia

    en.wikipedia.org/wiki/Hygroscopy

    For the hilum to close, this moisture needs to exceed some minimum level (14–25% for these species). [19] While the hilar valve is open (i.e., low outer humidity) if the humidity suddenly increases, the moisture tension reaches that protective threshold and the hilum closes, preventing moisture (liquid water) from entering.

  4. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a component in vapor-compression refrigeration and air conditioning systems that controls the amount of refrigerant released into the evaporator and is intended to regulate the superheat of the refrigerant that flows out of the evaporator ...

  5. Thermosiphon - Wikipedia

    en.wikipedia.org/wiki/Thermosiphon

    In some circumstances, for example the cooling system for an older (pre 1950s) car, the boiling of the fluid will cause the system to stop working, as the volume of steam created displaces too much of the water and circulation stops. The term "phase change thermosiphon" is a misnomer and should be avoided.

  6. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    Installation of an inline water filter (refrigerator drinking water/ice maker type) will drastically reduce the mineral deposits. Maintenance frequency Any mechanical components that can rust or corrode need regular cleaning or replacement due to the environment of high moisture and potentially heavy mineral deposits in areas with hard water.

  7. Dehumidifier - Wikipedia

    en.wikipedia.org/wiki/Dehumidifier

    Products using condensation technology have traditionally used a cold surface where humidity in warm air is condensed. Today, warm condensation technology, based on the concept of over-saturated steam inside a closed environment, [clarification needed] makes it possible to dehumidify air at sub-zero temperatures. This is a very energy-efficient ...

  8. Moisture - Wikipedia

    en.wikipedia.org/wiki/Moisture

    Moisture is the presence of a liquid, especially water, often in trace amounts. Moisture is defined as water in the adsorbed or absorbed phase. [1] Small amounts of water may be found, for example, in the air , in foods, and in some commercial products. Moisture also refers to the amount of water vapor present in the air. The soil also includes ...

  9. Thermostatic mixing valve - Wikipedia

    en.wikipedia.org/wiki/Thermostatic_mixing_valve

    WW-Zulauf = Warmwasser-Zulauf = Hot water input KW-Zulauf = Kaltwasser-Zulauf = Cold water input Temperaturregler =Temperature regulator Abgang = Outlet Mengeneinstellung = Volume control. A thermostatic mixing valve (TMV) is a valve that blends hot water with cold water to ensure constant, safe shower and bath outlet temperatures to prevent ...