Thermodynamics cycles

there is a lot of cycle has been produced for sytems in thermodynamics but now some of them are used but a lot of dont used

generally used cycles are:

Brayton cycle:
it is a gas cycle and working fluid is usually air aircraft jet motors are a typically brayton cycles furthermore some electric produce firms uses brayton cycle for their produce.
it is reliable and chip
for more data http://en.wikipedia.org/wiki/Brayton_cycle

rankine cycle:
it is different from brayton cycle because working fluid is generally water this cyle produce more work than brayton but system is bigger than brayton too.it is ideal for power plants
for more data: http://en.wikipedia.org/wiki/Rankine_cycle

stirling and ericson cycles:
this are older cycle than other cycles but generally they cannot be used because some problems
stirling cyle designed for stirling engine which is a external combustion engine.
more material fore stirling http://en.wikipedia.org/wiki/Stirling_engine