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Application of SFEE

In a steady f...

Question

In a steady flow, adiabatic turbine, the change in the internal energy, enthalpy, kinetic energy, and potential energy of working fluid from intel to exit are -200 kJ/kg, -340 kJ/kg, -40 kJ/kg, and 0 kJ/kg. The work developed by turbine is ________ kJ/kg.

A

280

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B

300

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C

380

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D

200

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Solution

The correct option is C 380
$Q - W = (h_{1} - h_{2}) + \frac{V_{2}^{2} - V_{1}^{2}}{2} + Z_{2} - Z_{1}$

Q = 0 (adibatic turbine)

$W = 380$

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