A closed system contains 1.2 kg of fluid, initially at 1.3 bar with a specific volume of 0.8 m3/kg. It undergoes a simple cycle as follows: 1-2 Constant volume heat addition of 26 kJ to 2.9 bar 2-3 Adiabatic expansion back to original pressure (k=1.4) 3-1 Constant pressure process back to original conditions. Find for each process: Work done Heat transfer Change of internal energy

A closed system contains 1.2 kg of fluid, initially at 1.3 bar with a specific volume of 0.8 m3/kg. It undergoes a simple cycle as follows: 1-2 Constant volume heat addition of 26 kJ to 2.9 bar 2-3 Adiabatic expansion back to original pressure (k=1.4) 3-1 Constant pressure process back to original conditions. Find for each process: Work done Heat transfer Change of internal energy

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 closed system contains 1.2 kg of
fluid, initially at 1.3 bar with a specific
volume of 0.8 m3/kg. It undergoes a
simple cycle as follows:
1-2 Constant volume heat addition
of 26 kJ to 2.9 bar
2-3 Adiabatic expansion back to
original pressure (k=1.4)
• 3-1 Constant pressure process
back to original conditions.
Find for each process:
• Work done
Heat transfer
Change of internal energy

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