Abstract
It is attractive to investigate the gas turbine engine by simulating technique, since it gives an improved understanding of engine dynamics and control problems without any dangers. And it will save both cost and time of engine development.As a few examples of transient operations, the sudden changes of fuel flow rate during acceleration and deceleration are examined. It is shown clearly that the complicated dynamic behaviour of a small gas turbine can be analyzed, and these calculated results are compared with experimental data during the transient operations.Pollutant emissions (CO, THC, NOx and NO) from the gas turbine are measured and analyzed during acceleration and deceleration. Especially, the NO emission levels are calculated by the Zeldovich mechanism during accelerations, and these data are compared with those obtained experimentally. As can be seen, the data from both tests agreed with each other fairly well.
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