How many types of air-cooled condensers used in household refrigerators?

  1. Three
  2. Four
  3. Two
  4. One

Answer (Detailed Solution Below)

Option 3 : Two
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Detailed Solution

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A condenser is a heat transferring device to change the gas or vapour discharged by the compressor to liquid to be used in the evaporator.

Types of Condensers

  • Air-cooled condensers
  • Water-cooled condensers
  • Combined air and water condensers
  • Evaporative type condensers

Air-cooled condensers:  These are usually made of copper tubing with thin fins assisting rapid radiation. These are mainly of two types

1. Natural air-cooled condensers

 In the natural convection type, heat transfer from the condenser is by buoyancy induced natural convection and radiation.

2. Forced draft condensers

 In forced convection type condensers, the circulation of air over the condenser surface is maintained by using a fan or a blower.

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