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  2. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Specifically, the heat pump transfers thermal energy using a heat pump and refrigeration cycle, cooling the cool space and warming the warm space. [1] In winter a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in summer.

  3. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

  4. Chiller - Wikipedia

    en.wikipedia.org/wiki/Chiller

    A liquid (glycol based) chiller with an air cooled condenser on the rooftop of a medium size commercial building. In air conditioning systems, chilled coolant, usually chilled water mixed with ethylene glycol, from a chiller in an air conditioning or cooling plant is typically distributed to heat exchangers, or coils, in air handlers or other types of terminal devices which cool the air in ...

  5. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    Heat engine/Heat pump type Peak power output Power-to-weight ratio Example use SI English SI English Wärtsilä RTA96-C 14-cylinder two-stroke diesel engine [3] 80,080 kW 108,920 hp 0.03 kW/kg 0.02 hp/lb Emma Mærsk container ship: ROTAX 900 ACE 60 900 cc, 3-cylinder, 4-stroke, naturally-aspirated marine engine [4] 45 kW 60 hp 0.24 kW/kg 0.15 hp/lb

  6. Cooling tower - Wikipedia

    en.wikipedia.org/wiki/Cooling_tower

    This equivalent ton is defined as the heat rejection in cooling 3 US gallons per minute (11 litres per minute) or 1,500 pounds per hour (680 kg/h) of water by 10 °F (5.6 °C), which amounts to 15,000 British thermal units per hour (4.4 kW), assuming a chiller coefficient of performance (COP) of 4.0. [14]

  7. Day 2 October Prime Day deals are here: These are the very ...

    www.aol.com/lifestyle/the-very-best-october...

    Day 2 of Amazon's 2024 October Prime Day sales event (formally called Prime Big Deal Days) is underway now, with brand new deals dropping throughout the day until the sale ends at midnight tonight ...

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