A methodology to infer the compressor characteristic curve

A methodology is proposed to infer the characteristic curve of the compressor of 9FA gas turbine based on the performance parameters of PG9351FA gas turbine at designed condition and some experimental data at off-design conditions, and then comparison is conducted between the real off-design performance data and the computed data to demonstrate the feasibility of this inferred method. The results show that the inferred methodology to apply linear scaled method with the design condition point as the central point has good accuracy for off-design points not far away from the designed condition point, and the inferring error increases slightly for off-design points farther from the designed condition points.