Cyclic Processes

Monday, 7 May 2018

4:44 PM

Start and end in the same state (same P,V and T), (PV=nRT)

If = 0

Cyclic processes>Heat engines...
.Cyclic processes form the basis of
heat engines, which convert heat
to work.
Adiabatic
c
processes
Example: gasoline engine
.lntake stroke: 0-4 A
.Compression stroke A -4 B
.Spark B C
.Power stroke C D
. Pressure release D
.Exhaust stroke A -9 0
The piston moves
up and pushes the
remaining gas out.
Exhaust
Exlraust