Question

What is the Reverse Brayton Cycle?

Answer 1

Hint: Brayton cycle is a thermodynamic cycle that helps us to describe the process of a heat engine which is having air or gas as its working fluid. It is used for the piston compressor and piston expander. The baryon cycle that flows in the reverse direction is known as the Reverse Brayton cycle. The example of the Reverse Brayton Cycle is the Brayton Refrigeration cycle.

Complete step by step solution:
The Reverse Brayton cycle is a thermodynamic process. In this process, the Bayron cycle is driven in the opposite direction and is known as the Reverse Baryton number. The heat is moved from the colder part to the hotter part of the body.

Its main purpose is to move the heat from the colder part of the body to the hotter part rather than produce work. As we know that according to the Second law of thermodynamics, we cannot move heat spontaneously from the colder part to the hotter part of the body without any external work acting on the system. To produce the flow from the colder part to the hotter part we need to use force by external work and by using these methods the heat pump and refrigerators accomplish.

There are four types of processes that occur in the Reverse Brayton Cycle. The graphs are shown below;

Figure: Reverse Brayton Cycle.

1. Reverse, adiabatic compression in 1-2.
2. Reverse, isobaric heat rejection in 2-3.
3. Reverse, adiabatic expansion in 3-4.
4. Reverse, isobaric heat absorption 4-1.

Note:The Reverse Brayton cycle is used in the refrigeration. It is also known as the Bell Coleman Cycle. It is the reverse flow of heat in the Baryon cycle. Do not confuse the Baryon cycle and the Reverse Baryon cycle.