
The control volume energy rate balance for work.

Explanation of Solution
The below figure shows the control volume for applying the energy principle.
Figure-(1)
Write the expression for the conservation of the energy principle to the control volume.
Here, the mass flow rate is
Here, the term
- 1) Work associated with the fluid pressure as mass transfer occurs at the inlet and exit.
- 2) Work associated with other contributions such as shaft work, displacement of boundary and electrical effects.
Write the expression for general energy rate balance for work as follows.
Here, pressure at inlet
Thus, the control volume energy rate balance for the work can be accounted using equation.
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Chapter 4 Solutions
Fundamentals of Engineering Thermodynamics
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