Abstract

Combustion instability of synthetic gas in a partially-premixed combustor has been numerically investigated by varying H₂ percentage of the fuel composition. During predictions with utilization of a lumped network code, the effects of different flame transfer function (FTF) models, which include the 2SUPnd/SUP order filter model and the state space model, and acoustic boundary conditions have also been investigated. The predicted results quite agree well with the corresponding experimental ones.

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