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Applying the Entropy Balance: Closed SystemsAn inventor
Chapter 6, Problem 53P(choose chapter or problem)
An inventor claims that the device shown in Fig. P6.53 generates electricity while receiving a heat transfer at the rate of 250 Btu/s at a temperature of \(500^{\circ} \mathrm{R}\), a second heat transfer at the rate of 350 Btu/s at \(700^{\circ} \mathrm{R}\), and a third at the rate of 500 Btu/s at \(1000^{\circ} \mathrm{R}\). For operation at steady state, evaluate this claim.
Questions & Answers
QUESTION:
An inventor claims that the device shown in Fig. P6.53 generates electricity while receiving a heat transfer at the rate of 250 Btu/s at a temperature of \(500^{\circ} \mathrm{R}\), a second heat transfer at the rate of 350 Btu/s at \(700^{\circ} \mathrm{R}\), and a third at the rate of 500 Btu/s at \(1000^{\circ} \mathrm{R}\). For operation at steady state, evaluate this claim.
ANSWER:
Solution 53P:
Step 1 of 3:-
Here we need to evaluate whether the claim is correct or not by the inventor.
The device given in the problem, generates electricity while receiving a heat transfer at the rate of , at a temperature of
, a 2nd heat transfer at the rate of
at a temperature of
and a 3rd heat transfer at the rate of
at a temperature of
.