“…The predictive model obtained as shown in Equation (27) shows a linear relationship with the TIT to ambient temperature ratio, ambient air relative humidity, compressor pressure ratio, and exhaust gas mass flow rate with an R 2 value of 0.998. The coefficient of determination (R 2 ) obtained is satisfactory as stated by Ibrahim et al [ 32 ] and Kwasi-Effah et al [ 33 ].…”