The second-law efficiency of the turbine is nearest: (A) 68% (B) 72% (C) 78% (D) 82% Steam

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The second-law efficiency of the turbine is nearest:
(A) 68%
(B) 72%
(C) 78%
(D) 82%
Steam enters a turbine (see Figures 6.39 and 6.40) at 4 MPa and 500° C and leaves as saturated steam at 40 kPa. Assume standard conditions for the dead state.
Figure 6.39
The second-law efficiency of the turbine is nearest:
(A) 68%
(B) 72%
(C)

Figure 6.40

The second-law efficiency of the turbine is nearest:
(A) 68%
(B) 72%
(C)
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Thermodynamics for Engineers

ISBN: ?978-1133112860

1st edition

Authors: Kenneth A. Kroos, Merle C. Potter

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