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Thermodynamics and Refrigeration: Simplified


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Thermodynamics, Mike Beacham

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Thermodynamics and Refrigeration: Simplified

  1. 1. Thermodynamics andRefrigeration: SimplifiedMike Beacham
  2. 2. Thermodynamics and Refrigeration:SimplifiedMike Beacham, refrigeration energy expert,summarizes the thermodynamic energy processesinvolved in everyday refrigeration.
  3. 3. Thermodynamics and Refrigeration:SimplifiedRefrigeration is based on heat transferring from alow-temperature region to a high temperatureregion. To accomplish this, a refrigerator has fourmain parts: a compressor, condenser, expansionvalve, and evaporator that work together like this:
  4. 4. Thermodynamics and Refrigeration:Simplified1. The compressor, powered by electricity, (whenyou plug your refrigerator in) compresses therefrigerant gas. This gas expands and moves to thecondenser (coils) as a super-heated vapor.
  5. 5. Thermodynamics and Refrigeration:Simplified2. The condenser coils dissipate the heat and cooldown the refrigerant vapor into liquid at highpressure.
  6. 6. Thermodynamics and Refrigeration:Simplified3. The expansion valve regulates the pressurizedrefrigerant as it enters the evaporator. This sharpchange in pressure causes the refrigerant toimmediately boil and evaporate, taking heat fromthe surrounding evaporator.
  7. 7. Thermodynamics and Refrigeration:Simplified4. The refrigerant flows back into the compressorand the cycle starts over.
  8. 8. Thermodynamics and Refrigeration:SimplifiedThese transfers of heat from one area to anotherare what essentially cause the cooling on the insideof your refrigerator.