16 April 2017

Comparison of air standard cycle and fuel air cycles

In this article reasons for the difference between air-standard cycles and fuel-air cycles is discussed. 

The magnitude of difference between the two cycles can be attributed to the following factors :

  • The character of the cycle ( Due to assumptions ) 
  • Equivalence ratio ( Actual F/A / Stoichiometric F/A )
  • Chemical composition of the fuel
Air standard cycles differ in many aspects following below :
  1. The variation of specific heat with temperature
  2. The change in pressure temperature
  3. Change of specific heat with temperature
  4. The working substance is a mixture of air and fuel vapour