General Science and Philosophy


Analysis of the Effect of Changes in Fuel Injector Position on Gas Turbine Combustion Efficiency Using Large Eddy Simulation (Les)

Authors: Shandy Kharisma Irianto, Gunawan Nugroho

Researches on gas turbine have been widely performed, especially on combustion chamber with a non-premixed combustion process. In this work, the research ofthe combustion chamber has been performed using the LES method. The aim of this study is to analyze the combustion process with various fuel injector angles and fuel rate. The analyzed aspects are flow pattern, temperature distribution and species concentration on stoichiometry condition. The mixing process between fuel and air at the combustion zone is affected by the increase in injector angle which, 33.55o (model 1) being the optimum injector angle to obtain the highest efficiency of 84.6%. It is noted that model 2 (injector 45o ) has the lowest emission containing waste gases of CH4 and CO, i.e. 0.75 and 0.089 times lower than those of model 1, respectively. However, the combustion efficiency of model 2 is lower than model 1, i.e. 82.7%.

Comments: 20 Pages.

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Submission history

[v1] 2012-08-19 10:44:37

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