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Carnot cycle

  • Thread starter s@ikiran
  • Start date
  • #1
12
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1.what is the work done in an adiabatic compression process in a carnot cycle


when we consider work done in efficiency why do we take heat exchange into account i.e.,qs-qr


The Attempt at a Solution

 

Answers and Replies

  • #2
210
12
Is it a homework question?

Anyways efficiency is measured by output you get from the machine divided by input you give to the machine. The heat change indicates the amount of heat transformed into work. Relate first law of thermodynamics.
 
  • #4
7
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We consider the standard Carnot-cycle which can be thought of as having a piston moving within a cylinder, and having the following characteristics:



  • A perfect seal, so that no atoms escape from the working fluid as the piston moves to expand or compress it.


  • Perfect lubrication, so that there is no friction.


  • An ideal-gas for the working fluid.


  • Perfect thermal connection at any time either to one or to none of two reservoirs, which are at two different temperatures, with perfect thermal insulation isolating it from all other heat transfers.


  • The piston moves back and forth repeatedly, in a cycle of alternating "isothermal" and "adiabatic" expansions and compressions
 

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