Example 5.23. When a closed system executes a certain non-flow process, the work and heatinteractions per degree rise in temperature at each temperature attained are given bySW= (4 0.08 T) kJ/kg and8Q= 1.00 kJ/KdTdTMake calculations for the increase or decrease in the internal energy of the system if it isto operate between the temperature limits of 200 °C and 400 °C.

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Answered: gree rise in temperature at each tem SW…

Engineering

Mechanical Engineering

gree rise in temperature at each tem SW (4 0.08 T) kJ/kg anc dT

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

Example 5.23. When a closed system executes a certain non-flow process, the work and heat
interactions per degree rise in temperature at each temperature attained are given by
SW
= (4 0.08 T) kJ/kg and
8Q
= 1.00 kJ/K
dT
dT
Make calculations for the increase or decrease in the internal energy of the system if it is
to operate between the temperature limits of 200 °C and 400 °C.

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