Исследование нестационарных процессов горения метано-водородного топлива в камерах сгорания ГТУ

Abstract

The tightening of environmental standards for NOx emissions requires improvement of design methods for gas turbine power units. One effective way to reduce emissions is to burn poor fuel-air mixtures, but this increases the risk of flame stall. Addition of hydrogen improves combustion stability but can lead to flame slippage in the burner. In this paper, unsteady combustion processes of methane-hydrogen mixtures are investigated using numerical modeling. A model based on the TFC method, detailed chemical kinetics and a modified presumed-PDF approach for calculating NO formation is developed. The results will provide a tool for the design of low-emission combustion chambers.