Engineering, 05.11.2020 18:30, jennaranelli05

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?

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, dval1146

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?

Answers: 1

continue

Engineering, 04.07.2019 18:20, sarah7984

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Answers: 2

continue

Engineering, 04.07.2019 18:20, ashleyjaslin

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.

Answers: 3

continue

Engineering, 04.07.2019 18:20, jessie8022

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.

Answers: 2

continue

Do you know the correct answer?

A JT9D high-bypass-ratio turbofan engine at maximum static power on a sea-level, standard day (P_0 =...