Thermodynamic Analysis of a Simple Gas Turbine Cycle When Using H2 NH3 and C3H8 Fuels.

Document Type : Research Studies

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Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Abstract

A simple equilibrium combustion model with superimposed kinetic NO and CO rates of formation has been developed. This has been used to compute the estimated performance and emission data for a simple gas turbine cycle. The model has also been used to compare performance and emission levels of gas turbine when operating with hydrogen, ammonia and propane fuels. The analysis is mainly concerned to study the effects of equivalence ratio, pressure ratio and fuel type on the predicted performance and NO and CO emission levels. Comparison has also been made between predicated maximum cycle temperatures, NO and CO emissions with that the corresponding measured values. This comparisons indicated that the predicated trends are agree with that of the experimental trends. From the theoretical and experimental results. It is found that the use of hydrogen fuel improves the performance of the gas turbine and gives higher product temperature than that of other fuels examined. The NO emission is increased as the result of increasing the product temperature. The most important engine operating variables in determining the performance and emission levels are well documented benefits of lean mixtures and low pressure ratio for lower engine emissions.

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