10-91 Consider a simple Brayton cycle using air as the working Baed, has a persuere ratio of 12: has a mavimum oycke temperature of
600\deg C
; and operates the compressor inlet at 100 kPa and
15\deg C
. Which will have the greatest impact on the back work ratiok a comperssor isentropic efficiency of 80 pervent or a turbine isentropic efticiency of 80 percent? Lise ceentant specific heats at room temperature.