A JT9D high-bypass-ratio turbofan engine at maximum static power on a sea-level, standard day (P_0 = 14.696 psia, T_0 = 518.7 degree R, and V_0 = 0) has the data listed in Appendix B. a. Calculate the adiabatic and polytropic efficiencies of the fan. Assume gamma = 1.4.
b. Calculate the adiabatic and polytropic efficiencies of the low-pressure and high-pressure compressors. Assume γ=1.4 for the low-pressure compressor and γ=1.39 for the high-pressure compressor.
c. Calculate the adiabatic polytropic efficiencies of the turbine. Assume gamma = 1.35.
d. Calculate the power (horsepower and kilowatts) into the fan and compressors. Assume R_gc = 1716 ft^2/(s^2. degree R) and the gamma of parts b and c.
e. Calculate the power (horsepower and kilowatts) from the turbine for a mass flow rate of 251 lbm/s. Assume gamma = 1.31 and Rg_c = 1716 ft^2/(s^2. degree R).
f. How do the results of parts d and e compare?