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Engineering and Tech / Fundamentals of Engineering Thermodynamics 7 / Chapter 6 / Problem 86P

Fundamentals of Engineering Thermodynamics | 7th Edition | ISBN: 9780470495902 | Authors: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey

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Applying the Entropy Balance: Control VolumesBy injecting

Chapter 6, Problem 86P

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QUESTION:

By injecting liquid water into superheated steam, the desuperheater shown in Fig. P6.86 has a saturated vapor stream at its exit. Steady-state operating data are provided in the accompanying table. Stray heat transfer and all kinetic and potential energy effects are negligible. (a) Locate states 1, 2, and 3 on a sketch of the T–s diagram. (b) Determine the rate of entropy production within the desuperheater, in kW/K.

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QUESTION:

By injecting liquid water into superheated steam, the desuperheater shown in Fig. P6.86 has a saturated vapor stream at its exit. Steady-state operating data are provided in the accompanying table. Stray heat transfer and all kinetic and potential energy effects are negligible. (a) Locate states 1, 2, and 3 on a sketch of the T–s diagram. (b) Determine the rate of entropy production within the desuperheater, in kW/K.

ANSWER:

Solution

Step 1 of 4

In this problem, we have to find the rate of entropy production and sketch and locate it on the T-s diagram.

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