Introduction: Entropy Balances, Open Systems
Entropy change due to mass flow in and out of the system
So, we must add another term to the right-hand side of the
closed system entropy balance equation:
Entropy generation within the system
Entropy change due to heat transfer
Change in the entropy of the system
In Lesson 8A we wrote the
entropy balance equationfor closed systems.
In this lesson, we will develop
entropy balance equationsfor open systems.
Mass flowing into and out of the system carries entropy with it, just as it carries energy with it.
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