Superheated steam at 90 bar, 625 °C (State 1) undergoes a 3-step process: (i.) First, it is throttled by a valve to 16 bar (State 2). (ii.) Next, it is isochorically cooled to a saturated vapor (State 3). (iii.) Finally, it is compressed isentropically back to the original 90 bar pressure (State 4).

Superheated steam at 90 bar, 625 °C (State 1) undergoes a 3-step process: (i.) First, it is throttled by a valve to 16 bar (State 2). (ii.) Next, it is isochorically cooled to a saturated vapor (State 3). (iii.) Finally, it is compressed isentropically back to the original 90 bar pressure (State 4).

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

state	T(C)	P(bar)	V(cm^3/g)	H(KJ/Kg)	S(KJ/kgK)
1(initial)
2(after throttle)
3(after cooling)
4(after compressor)

fill out the number in the table

Superheated steam at 90 bar, 625 °C (State 1) undergoes a 3-step process:
(i.) First, it is throttled by a valve to 16 bar (State 2).
(ii.) Next, it is isochorically cooled to a saturated vapor (State 3).
(iii.) Finally, it is compressed isentropically back to the original 90 bar pressure (State 4).
TE

3
T
2
Vapor-compression refrigeration cycle.

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