Thermodynamic And Heat Engine 

Cycle

Cycle : A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as thermodynamic cycle.

Q: What is Carnot engine?

A: It was being designed by Carnot and let me tell you that Carnot engine is an imaginary engine which follows the Carnot cycle and provides 100% efficiency.

1-2: Isothermal expansion process

2-3: Reversible adiabatic expansion process or Isentropic expansion process

3-4: Isothermal compression process

4-1: Reversible adiabatic compression process or Isentropic compression process

The sufficiency of Carnot cycle may be increased by

1.       Increasing the highest temperature,

2.       Decreasing the lowest temperature. (most effective process)

The Carnot cycle cannot be realized in actual practice due to

1.      Very high pressure developed in the cylinder.

2.      High volume ratios in the cylinder.