Engineering Thermodynamics: Unit III: Availability and Applications of II Law

Thermodynamics I and II Law Efficiency

First law efficiency is defined as the ratio between net work output and heat supplied to the system.

I AND II LAW EFFICIENCY

First law efficiency is defined as the ratio between net work output and heat supplied to the system.

First law efficiency, η1 = Net work output / Heat supplied

Second law efficiency is defined as the ratio between the change in available energy and system and change in available energy of the source. Otherwise, it may also be defined as the ratio between availability of output and availability of input.

Second law efficiency, η = Change in available energy of the system /  Change in available energy of the source

= Aout / Ain

Engineering Thermodynamics: Unit III: Availability and Applications of II Law : Tag: : - Thermodynamics I and II Law Efficiency