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The vapour compression refrigerator employs which of the following cycles?

By BYJU'S Exam Prep

Updated on: September 25th, 2023

(a) Rankine

(b) Carnot 

(c) Reversed Rankine

(d) Reversed Carnot

The vapour compression refrigerator employs Reversed Rankine cycles. The Reverse Rankine cycle, which is also known as the vapour compression refrigeration cycle, powers vapour compression refrigerators.

Vapour Compression Refrigerator

The mentioned figure is a schematic diagram of the vapour compression refrigeration cycle.

vapour

Process 1-2: isentropic compression

  • In a pump, isentropic compression occurs.
  • The working fluid is pushed from lower to higher pressure in the chamber.

Process 2-3: constant pressure heat rejection

  • Heat is added to the boiler at constant pressure.
  • The high-pressure liquid is included in the boiler and cooked at constant pressure to obtain a dry saturated vapour.

Process 3-4: iso-enthalpic expansion

  • In a turbine, isentropic expansion occurs.
  • Power generation occurs as the dry saturated vapour expands in the turbine.

Process 4-1: constant pressure heat absorption

  • In a condenser, heat rejection occurs under constant pressure.
  • Formation of saturated liquid at a steady pressure by condensing wet vapour.

The Rankine cycle’s mechanism is used in the vapour compression cycle as well, however since the cycle’s direction is anticlockwise rather than clockwise, it is simply reversed, therefore we name it Reverse Rankine.

Summary:

The vapour compression refrigerator employs which of the following cycles? (a) Rankine (b) Carnot (c) Reversed Rankine (d) Reversed Carnot

Reversed Rankine is used in the refrigerator with vapour compression. Vapour Compression Refrigeration is defined as the refrigerant in which phase changes are one of the many refrigeration cycles. It is most widely used method for air conditioning of automobiles and buildings.

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