5.2 kg/s of steam at 30 bar and 350°C is supplied to a group of six nozzles on a wheel diameter maintained at 4-bar pressure. Determine for metastable expansion, (a) Diameter of nozzles at exit without friction, (b) Degree of under-cooling and supersaturation, (C) Loss in available heat drop due to ireversibiltiy, (d) Increase in entropy, (e) Ratio of mass-flow rate with metastable expansion to that of expansion in thermal equilibrium.

5.2 kg/s of steam at 30 bar and 350°C is supplied to a group of six nozzles on a wheel diameter maintained at 4-bar pressure. Determine for metastable expansion, (a) Diameter of nozzles at exit without friction, (b) Degree of under-cooling and supersaturation, (C) Loss in available heat drop due to ireversibiltiy, (d) Increase in entropy, (e) Ratio of mass-flow rate with metastable expansion to that of expansion in thermal equilibrium.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

100%

5.2 kg/s of steam at 30 bar and 350°C is
supplied to a group of six nozzles on a wheel
diameter maintained at 4-bar pressure.
Determine for metastable expansion, (a)
Diameter of nozzles at exit without friction, (b)
Degree of under-cooling and supersaturation,
(C) Loss in available heat drop due to
ireversibiltiy, (d) Increase in entropy, (e) Ratio
of mass-flow rate with metastable expansion to
that of expansion in thermal equilibrium.

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