Evaluate mechanical work - thermodynamics, Mechanical Engineering

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Evaluate mechanical work in different steady flow process:

Work done by steady flow process
2386_Evaluate mechanical work.png
and work done in non flow process,
430_Evaluate mechanical work1.png

1. Constant Volume Process; W_1-2= V(P₁ - P₂)

Steady flow equation

dq = du = dh + d (ke) + d (pv)

Now h = a + pr

By differentiating

dh = du + dtper

= du = pdv = vdp.

1276_Evaluate mechanical work2.png

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