Question

3. An inventor claims that the electricity-generating unit shown on the Figure below recieves a heat transfer at the rate of 270 kJ/s at a temperature of 280 K, a second heat transfer at the rate of 380 kJ/s at 400 K, and a third at the rate of 530 kJ at 560 K. For the operation at steady state, evaluate this claim. $ \dot{Q}_1 = 270 \text{ kJ/s} $ $ T_1 = 280 \text{ K} $ $ \dot{Q}_2 = 380 \text{ kJ/s} $ $ T_2 = 400 \text{ K} $ $ T_3 = 560 \text{ K} $ $ \dot{Q}_3 = 530 \text{ kJ/s} $

          3. An inventor claims that the electricity-generating unit shown on the Figure below recieves
a heat transfer at the rate of 270 kJ/s at a temperature of 280 K, a second heat transfer
at the rate of 380 kJ/s at 400 K, and a third at the rate of 530 kJ at 560 K. For the
operation at steady state, evaluate this claim.
$ \dot{Q}_1 = 270 \text{ kJ/s} $
$ T_1 = 280 \text{ K} $
$ \dot{Q}_2 = 380 \text{ kJ/s} $
$ T_2 = 400 \text{ K} $
$ T_3 = 560 \text{ K} $
$ \dot{Q}_3 = 530 \text{ kJ/s} $

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3. An inventor claims that the electricity-generating unit shown on the Figure below recieves
a heat transfer at the rate of 270 kJ/s at a temperature of 280 K, a second heat transfer
at the rate of 380 kJ/s at 400 K, and a third at the rate of 530 kJ at 560 K. For the
operation at steady state, evaluate this claim.
Q̇1 = 270 kJ/s
T1 = 280 K
Q̇2 = 380 kJ/s
T2 = 400 K
T3 = 560 K
Q̇3 = 530 kJ/s

Added by Peter G.

Fundamentals of Thermodynamics

Claus Borgnakke, Richard E. Sonntag 8th Edition

Chapter 8

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Solved by Expert Vishal Gupta

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The inventor is stating that their electricity-generating unit is receiving three separate heat transfers at different rates and temperatures. The rates are 270 kJ/s at 280 K, 380 kJ/s at 400 K, and 530 kJ/s at 560 K. Show more…

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An inventor claims that the electricity-generating unit shown in the figure below receives a heat transfer at the rate of 270 kJ/s at a temperature of 280 K, a second heat transfer at the rate of 380 kJ/s at 400 K, and a third at the rate of 530 kJ/s at 560 K. For the operation at steady state, evaluate this claim.

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