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  2. The evaporator fan pulls cold air into the evaporator coils, where it is then distributed through the fridge and freezer. If the fan isn't working, this doesn't happen efficiently. The most common ...

  3. 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.

  4. If You Have Frost in Your Freezer, This Is What It Means - AOL

    www.aol.com/lifestyle/frost-freezer-means...

    Do not place the freezer near warm appliances like a furnace, dryer, or water heater Leave room between the back of the freezer and the wall Be sure the freezer is set to an appropriate temperature

  5. Auto-defrost - Wikipedia

    en.wikipedia.org/wiki/Auto-defrost

    By this means, a controlled portion of the air coming from the freezer reaches the refrigerator. Some older models have no air circulation between their freezer and refrigerator sections. Instead, they use an independent cooling system (for example: an evaporator coil with a defrost heater and a circulating fan in the freezer and a cold-plate ...

  6. 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]

  7. Flash-gas (refrigeration) - Wikipedia

    en.wikipedia.org/wiki/Flash-gas_(refrigeration)

    These create low pressure loci that may cause the fluid to begin changing its phase, especially if the pipeline is exposed to heat, through, for example, gaps in insulation. [4] If there is inadequate subcooling, the refrigerant remains in thermodynamic conditions close to saturation, promoting flash-gas formation.

  8. Defrosting (refrigeration) - Wikipedia

    en.wikipedia.org/wiki/Defrosting_(refrigeration)

    Defrosting a freezer with an improvised water collection method. In refrigerators, defrosting (or thawing) is the removal of frost and ice. A defrosting procedure is generally performed periodically on refrigerators and freezers to maintain their operating efficiency.

  9. Why sudden loud booms sometimes occur when it's very cold outside

    www.aol.com/weather/why-sudden-loud-booms...

    During extreme cold events, you may hear a loud boom and feel like you have experienced an earthquake. However, this event was more likely a cryoseism, also known as an ice quake or a frost quake ...

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