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  • 18ME304 (ME394)
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  • Anna University

Refrigeration System Components and Functions Refrigerant Properties and Behavior Refrigerants are used to transfer heat in refrigeration systems Key properties of refrigerants include: Low boiling point High latent heat of vaporization Low viscosity Chemically stable Non-toxic and non-flam...

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Document information

  • April 20, 2024
  • 3
  • 2023/2024
  • Class notes
  • Dr . periya swami
  • All classes

Subjects

  • refrigerationsystem components and functions

Written for

  • Anna University
  • 18ME304 (ME394)
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Refrigeration System Components and Functions
Refrigerant Properties and Behavior


 Refrigerants are used to transfer heat in refrigeration
systems
 Key properties of refrigerants include:
 Low boiling point
 High latent heat of vaporization
 Low viscosity
 Chemically stable
 Non-toxic and non-flammable
 Refrigerants follow a cycle of phase changes (liquid to gas
and back to liquid) as they absorb and release heat
Heat Transfer in Evaporator and Condenser


 The evaporator is where the refrigerant absorbs heat from
the surroundings
 The condenser is where the refrigerant releases heat to the
surroundings
 Heat transfer occurs through the following processes:
 Conduction
 Convection
 Radiation
 The efficiency of heat transfer depends on the following
factors:
 Temperature difference between the refrigerant and
the surrounding medium
 Flow rate of the refrigerant and the surrounding
medium

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