An Educational Guide to Extract the Parameters of Heavy Duty Gas Turbines Model in Dynamic Studies Based on Operational Data

In this paper, the parameters of Rowen´s model for heavy duty gas turbines in dynamic studies are estimated by use of available operational and performance data. The work is aimed to create insight into various parts of the model and to introduce a simple and comprehensive procedure to derive the parameters out of simple physical laws, focusing especially on trainers and students who are interested in dynamic models and simulations. A 172-MW simple cycle, single shaft heavy duty gas turbine and its available operational data are also presented and studied for deriving the parameters of the model. Gas turbine parameters are approximated by using simple thermodynamic assumptions, resulting in good correspondence with typical values. The step response of the model is also simulated for few scenarios and is presented.