Performance analysis and prediction of compressor fouling condition for a twin-shaft engine

Performance of a twin-shaft Industrial Gas Turbine (IGT) at fouling condition is simulated via a gas turbine model based on fundamental thermodynamics. Measurements across the engine during compressor fouling conditions were considered to validate the outcomes. By implementing correlation coefficients in the compressor model, the performance of the IGT during compressor fouling conditions is predicted. The change in the compressor air flow and the compressor efficiency during fouling conditions is estimated. The results show that the reduction of air flow rate is the dominating parameter in loss of generated power under fouled conditions. The model can provide an insight into the effect of compressor fouling conditions on IGT performance