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

Entropy Generation

Thermodynamics

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As stated earlier, the entropy generation during the process depends on the change in entropy of the system and change in entropy of the surrounding.

ENTROPY GENERATION

As stated earlier, the entropy generation during the process depends on the change in entropy of the system and change in entropy of the surrounding. It is given by

Sgen = ΔSsystem + ΔSsurr

The change entropy of the system is based on the type of thermodynamic process involved in the system but the entropy of surrounding depends on the amount of waste heat liberated to the atmosphere or sink at a particular temperature. The entropy change on surrounding is calculated by


Similar to the principle of increase in entropy,

(i) Sgen = 0 for reversible process 

(ii) Sgen > 0 for irreversible process

(iii) Sgen < 0 for impossible process.

Engineering Thermodynamics: Unit III: Availability and Applications of II Law : Tag: : Thermodynamics - Entropy Generation

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


Entropy Change of Ideal Gas

Applications of Change in Entropy for different processes

Principle of Increase of Entropy

Applications of Second Law of Thermodynamics or Applications of Entropy Principle

Absolute Entropy - Third law of thermodynamics

Entropy Balance - Thermodynamics

Entropy Generation - Thermodynamics

Solved Problems on Entropy - Thermodynamics

Solved Anna University Problems on Entropy principles - Thermodynamics

Available Energy and Unavailable Energy - Thermodynamics

Availability - Thermodynamics

Irreversibility (I) - Thermodynamics

Thermodynamics I and II Law Efficiency

Expressions for energy of a closed systems in terms of availability and Thermodynamic second law efficiency

Expressions for energy of an open systems in terms of availability and Thermodynamic second law efficiency

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