Emissions from Gas Turbine Combustors : Part 2, Analytical Model and Numerical Analysis

概要

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An axi-symmetrical, two-dimensional model of gas turbine combustors of can-type has been developed in which both turbulent diffusion and chemical reactions of finite rate are taken into account simultaneously. On the basis of this model, the distribution maps of the velocities, temperatures, equivalence ratios and the concentrations of oxygen and nitric oxide, as well as the axial profile of combustion efficiency were predicted numerically, which have several features common with the observed ones. This suggests the availability of the present model for examining the roles of various parameters in the formation process of nitric oxide. Its capacity in predicting the blowout behaviors of combustors was also anticipated.
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