The 7fa gas turbine manufactured by general electric is reported to have an efficiency of 35.9% in the simple-cycle (brayton) mode and to produce 159 mw of net power. the pressure ratio is 14.7, the turbine inlet temperature is 1,288 c. the mass flow rate through the turbine is 1,536,000 kg/h. taking the ambient conditions to be 20 c and 100 kpa (as the state before the compressor), determine the isentropic efficiency of the turbine and the compressor. also, determine the thermal efficiency of this gas turbine if a regenerator with, an effectiveness of 65 percent is added.