A piston-cylinder assembly with a linear spring acting on the piston as shown below contains the refrigerant R-134a at 15°C with a quality of x=0.6 in a control volume of V= 0.02 m³. The R-134a is heated up to 60°C at which point the specific volume is v=0.03002 m³/kg. Po = 101.3kPa a) Determine the final pressure. b) Determine the final volume. c) Determine the work in the process.

A piston-cylinder assembly with a linear spring acting on the piston as shown below contains the refrigerant R-134a at 15°C with a quality of x=0.6 in a control volume of V= 0.02 m³. The R-134a is heated up to 60°C at which point the specific volume is v=0.03002 m³/kg. Po = 101.3kPa a) Determine the final pressure. b) Determine the final volume. c) Determine the work in the process.

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 piston-cylinder assembly with a linear spring acting on the piston as shown below
contains the refrigerant R-134a at 15°C with a quality of x=0.6 in a control volume of
V= 0.02 m³. The R-134a is heated up to 60°C at which point the specific volume is
v= 0.03002 m³/kg. Po = 101.3kPa
a) Determine the final pressure.
b) Determine the final volume.
c) Determine the work in the process.
d)
Determine the heat transfer in the process
e) Draw a p-v diagram to qualitatively show the process
f) Are there any parameter(s) missing for the calculation of the linear spring constant?
if so, which one(s)? develop an equation to calculate the linear spring constant
Po
R-134a

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