Study the effect of water-gas shift equilibrium on adiabatic flame temperature for alkanes family fuels at rich conditions

Abstract EN

The effect of water – gas shift equilibrium on adiabatic flame temperature for Alkanes family fuels was studied.

The calculations of adiabatic flame temperatures were carried out by developing a program by using visual basic 6 language, based on a general algorithm meant to compute the equilibrium composition of products for any fuel–oxidizer gaseous mixture.

The algorithm is based on the thermodynamic principles.

Ten compounds were considered as products: the fuel (CnH2n+2), CO2, CO, H2O, N2, O2, CH4, C2H6, C3H8, C4H10, H2, their heat were capacities expressed as function of temperature with the form: Cp = ao+a1T+a2T2 +a3T3.

Two methods with and without water – gas shift equilibrium were used to analysis the products gases.

The results showed, adiabatic flame temperature calculated with water – gas shift equilibrium greater than that calculated without water – gas shift equilibrium.