A steam power plant operates essentially under steady state conditions in which steam is at a temperature of 250 C and pressure is 0.3 MPa. The steam is cooled at constant volume. (a) Find at what temperature, the steam becomes a saturated vapor. (b) What will be its quality at 80 •C? (c) What is the heat transfer per kg of steam by cooling it from 250 •C to 80 •C?

A steam power plant operates essentially under steady state conditions in which steam is at a temperature of 250 C and pressure is 0.3 MPa. The steam is cooled at constant volume. (a) Find at what temperature, the steam becomes a saturated vapor. (b) What will be its quality at 80 •C? (c) What is the heat transfer per kg of steam by cooling it from 250 •C to 80 •C?

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

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

A steam power plant operates essentially under steady state conditions in which
steam is at a temperature of 250 •C and pressure is 0.3 MPa. The steam is
cooled at constant volume. (a) Find at what temperature, the steam becomes a
saturated vapor. (b) What will be its quality at 80 •C? (c) What is the heat
transfer per kg of steam by cooling it from 250 C to 80 •C?

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