Question

What is the importance of thermodynamic cycles?

Answer 1

A thermodynamic cycle consist of series of thermodynamic processes transferring heat and work, while varying pressure,temperature and other state variables and eventually returning the system to the initial state.

By using thermodynamic cycles we can model the real devices and systems, typically by making a series of assumptions. Simplifying assumptions are often necessary to reduce the problem to a more manageable form. That's why thermodynamic cycles are so important.