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  2. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    The system has very high efficiency but, like other evaporative cooling systems, is constrained by the ambient humidity levels, which has limited its adoption for residential use. It may be used as supplementary cooling during times of extreme heat without placing significant additional burden on electrical infrastructure.

  3. Pot-in-pot refrigerator - Wikipedia

    en.wikipedia.org/wiki/Pot-in-pot_refrigerator

    ECCs (evaporative cooling chambers) and clay pot coolers provide the most benefits when they are used in low humidity climates (less than 40% relative humidity), the temperature is relatively high (maximum daily temperature higher than 25 °C), water is available to add to the device between one and three times per day, and the device can be ...

  4. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Variable refrigerant flow systems when compared with central plant cooling from an air handler, eliminate the need for large cool air ducts, air handlers, and chillers; instead cool refrigerant is transported through much smaller pipes to the indoor units in the spaces to be conditioned, thus allowing for less space above dropped ceilings and a ...

  5. This Best-Selling Portable Cooling Fan a ‘Life Saver’—and It ...

    www.aol.com/lifestyle/best-selling-portable...

    Let us introduce you to an underestimated, but game-changing must-have for your survival kit: a handheld portable cooling fan, specifically, the best-selling Jisulife Handheld Mini Fan, which is ...

  6. Absorption refrigerator - Wikipedia

    en.wikipedia.org/wiki/Absorption_refrigerator

    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).

  7. Refrigeration - Wikipedia

    en.wikipedia.org/wiki/Refrigeration

    For commercial and industrial refrigeration systems, the kilowatt (kW) is the basic unit of refrigeration, except in North America, where both ton of refrigeration and BTU/h are used. A refrigeration system's coefficient of performance (CoP) is very important in determining a system's overall efficiency. It is defined as refrigeration capacity ...

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