Determine the net work - mechanics, Mechanical Engineering

Assignment Help:

Determine the net work:

Q: 5 m3 of air at 2 bar, 27°C is compressed to 6 bar pressure following PV1.3  =C. It is expanded subsequently adiabatically to 2 bar. Considering two processes is to be reversed, determine the net work. Also plot the processes on T - S diagram.            

Sol: Given that:

Initial volume of air  V1  = 5 m3

Initial pressure of air P1  = 2 bar

Final pressure = 6 bar

Compression: Rev. Polytropic process (PVn  = C) Expansion :Rev. adiabatic process (PV14 = C) Now, work done during the process (1-2)

925_Determine the net work 1.png

1584_Determine the net work2.png

negative  sign shows that work input required for compression is more than work output obtained during expansion.


Related Discussions:- Determine the net work - mechanics

The dimension style command-autocad, The Dimension Style Command The Di...

The Dimension Style Command The Dimension Style command can be used to change appearance of dimensions. The best method  to create a new style before you can start creating dim

Main features of laser cutting process, Main Features of Laser Cutting Proc...

Main Features of Laser Cutting Process   1) Laser cut kerf is very narrow resulting in material saving. 2) Has very narrow heat affected zone (HAZ) and therefore gives low

Determine the maximum value of the coefficient of friction, Determine the m...

Determine the maximum value of the coefficient of friction: A force of 200 N inclined at 60 o to the horizontal is applied to the block A weighing 400 N. find out whether blo

Concentrated or point load on beam, Concentrate d or Point Load: Ho...

Concentrate d or Point Load: How many types of load are acting on the beam? A beam is usually horizontal and the loads acting on beams are usually vertical. The followi

What is clad plate and overlay welding, Q. What is Clad plate and overlay w...

Q. What is Clad plate and overlay welding? Strip back cladding on clad plate a minimum of 5 mm (3/16") from the edges of weld preparation before welding on the backing plate.

Torsion, series shaft and parallel shaft

series shaft and parallel shaft

Beee, Explain the construction and principles of operations of induction mo...

Explain the construction and principles of operations of induction motor

Electrical science, explain ways of representing alternative quantities;1)p...

explain ways of representing alternative quantities;1)phasor representation 2)graphical representation 3)complex waves 4)addition and subtraction of sine wave

What is raft foundation, What is raft foundation? A raft or mat can be ...

What is raft foundation? A raft or mat can be considered as a combined footing which covers the entire building area and supports all columns and walls. Such a foundation may c

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd