When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. 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. The COP is used in thermodynamics.

  3. Heat pump and refrigeration cycle - Wikipedia

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

    Both the COP of a refrigerator and a heat pump can be greater than one. Combining these two equations results in: = + for fixed values of Q H and Q L. This implies that COP HP will be greater than one because COP R will be a positive quantity. In a worst-case scenario, the heat pump will supply as much energy as it consumes, making it act as a ...

  4. Cooling capacity - Wikipedia

    en.wikipedia.org/wiki/Cooling_capacity

    It is equivalent to the heat supplied to the evaporator/boiler part of the refrigeration cycle and may be called the "rate of refrigeration" or "refrigeration capacity". As the target temperature of the refrigerator approaches ambient temperature, without exceeding it, the refrigeration capacity increases thus increasing the refrigerator's COP.

  5. Thermal efficiency - Wikipedia

    en.wikipedia.org/wiki/Thermal_efficiency

    For a heat engine, thermal efficiency is the ratio of the net work output to the heat input; in the case of a heat pump, thermal efficiency (known as the coefficient of performance or COP) is the ratio of net heat output (for heating), or the net heat removed (for cooling) to the energy input (external work). The efficiency of a heat engine is ...

  6. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    An electrical resistance heater has a COP of 1.0, which is considerably lower than a well-designed heat pump which will typically have a COP of 3 to 5 with an external temperature of 10 °C and an internal temperature of 20 °C. Because the ground is a constant temperature source, a ground-source heat pump is not subjected to large temperature ...

  7. Texas Cop Caught On Video Taking Drink From Fridge Has Theft ...

    www.aol.com/2012/04/02/stealing-from-office-fridge

    For premium support please call: 800-290-4726 more ways to reach us

  8. 34 Unique Things to Do on New Year's Eve to Ring in 2025 - AOL

    www.aol.com/25-unique-things-years-eve-204800916...

    Go for a full-on dinner party (and try a new recipe or two!), or make it super laid-back with a charcuterie board and a movie marathon. AleksandarNakic - Getty Images. Get Crafty.

  9. Glossary of engineering: A–L - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_engineering:_A–L

    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 required. [118] [119] Higher COPs equate to lower operating costs. The COP usually exceeds 1, especially in heat pumps, because, instead of just converting work to heat ...