• BASICS OF AIR CONDITIONING
  • BASICS OF AIR CONDITIONING
BASICS OF AIR CONDITIONING

BASICS OF AIR CONDITIONING (ISH001BOAC)

200

ISHRAE Member : 180

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  • Refrigeration is a process of producing cold or a process of taking away heat.
  • Whenever the temperature is to be lowered below the surrounding temperature, it has to be done through a process of cooling.
  • Heat always flows from a higher temperature region to a lower temperature region. If we have to lower the temperature below the surrounding temperature, it requires external energy, as we would then be working against the laws of nature.
  • To understand this better, we can take the example of water. As we know, water flows from a higher level to a lower level, irrespective of the quantity involved. And if we want to raise water to a higher level, we require pumps which in turn require external energy.
  • Exactly similar is the case with heat energy. We therefore, require external energy when using a refrigeration system with a compressor to pump out the heat from the place, where we do not want it to a place where it is not objectionable to discard this heat.
  • Air conditioning is a form of refrigeration. When we use air as a medium for cooling, we call it air conditioning.
 

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