BTU 1. An ideal gas with R = 0.062- and Cy =0.158 b-2 ETU undergoes a three Ib"R process cycle in aclosed system. From the initial state of 20 psia and 570 R, the gas is compressed at constant temperature to 1/5 of its initial volume, process 1-2; it is then heated isochorically to state 3,process 2-3; and finally, it expands polytropically with index n= 1.5 back to its initial state, process 3-1. Determine the pressures, specific volumes and temperatures at cardinal points around the cycle and the cycle thermal efficiency.

BTU 1. An ideal gas with R = 0.062- and Cy =0.158 b-2 ETU undergoes a three Ib"R process cycle in aclosed system. From the initial state of 20 psia and 570 R, the gas is compressed at constant temperature to 1/5 of its initial volume, process 1-2; it is then heated isochorically to state 3,process 2-3; and finally, it expands polytropically with index n= 1.5 back to its initial state, process 3-1. Determine the pressures, specific volumes and temperatures at cardinal points around the cycle and the cycle thermal efficiency.

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

BTU
ETU
1. An ideal gas with R = 0.062-
and Cy =0.158
undergoes a three
16-2
Ib"R
process cycle in aclosed system. From the initial state of 20 psia and 570 °R, the gas is
compressed at constant temperature to 1/5 of its initial volume, process 1-2; it is then
heated isochorically to state 3,process 2-3; and finally, it expands polytropically with index
n= 1.5 back to its initial state, process 3-1. Determine the pressures, specific volumes and
temperatures at cardinal points around the cycle and the cycle thermal efficlency.

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