What is the working fluid in the steam power plant a typical

What is the working fluid in the steam power plant (a typical heat engine) in figure a? What is the working fluid in the vapor compression refrigeration cycle in figure b?

Solution

Hi, there

Problem 3

Let explain first what is the irreversibility.

Irreversibility : The process which can be reversed spontaneously / by external factors is called irreversible process.

Example : One can not heat the cup of coffee which is in the environment. we can not transfer the dissipated heat back to the coffee cup without external work. hence it\'s called irreversible process. even if we can restore the system but we can not restore the surrounding at anyhow.

all complex natural processes are the irreversible process.

Common Irreversibility factors

Problem # 4