Rai saheb bhanwar singh college nasrullaganj

1. Session:- 2017-18
Class:- B.S.C. (CS)1ST Year
Submitted to
Gyan rao dhote
Submitted by
Priyanka kushwah

3. To study the efficiency of an engine, Sadi Carnot in 1824,
considered a theoretical ideal engine in which there is no
lose of heat due to friction etc., and the working substance
is the perfect gas. Such an engine can not be realised in
practice, but is helpful for the theoretical study as the
mathematical calculations become easier. This engine is
reversible and its efficiency depends only on the
temperatures of source and sink between which it works.
No engine in practice can have efficiency more than it.

4. The main parts of the ideal Carnot engine
are:
1.Source of heat,
2.Sink,
3.Perfect insulating plate,
4.Piston-cylinder assembly.

5. Fig:- Main parts of carnot’s engine

6. Source of heat-
It is a source of heat of infinite capacity
kept at a constant high temperature
T1k, such that its temperature is
unaffected on extracting any amount of
heat from it.

7. It is kept at a constant low temperature
T2K. Its capacity is also infinite, i.e. its
temperature is unaffected even if any
amount of heat is rejected to it.
Sink-

8. Perfect insulating plate-
It is a perfect insulating
plate which does not allow
heat to pass through it.

9. The walls of the cylinder are perfectly insulating
and its base is perfectly conducting. Piston is also
of non-conducting material and the piston can
slide inside the cylinder without any friction.
Cylinder contains the working substance. The
cylinder can be kept in contact with either of the
heat source, insulating plate and sink. No work is
needed in taking it from one to the other.