A turbojet-powered aircraft is traveling at 250 m/s at an altitude where the ambient conditions are -35°C and 40 kPa. Air exits the diffuser at 50 kPa, and the inlet of the turbine is maintained at 500 kPa and 1000°C. The turbine itself produces 500 kW of power, all of which is used to drive the compressor. Assuming the cold-air standard and an isentropic efficiency of 85% for the compressor and turbine, determine (a) the propulsive efficiency and (b) the propulsive power of this engine.

A turbojet-powered aircraft is traveling at 250 m/s at an altitude where the ambient conditions are -35°C and 40 kPa. Air exits the diffuser at 50 kPa, and the inlet of the turbine is maintained at 500 kPa and 1000°C. The turbine itself produces 500 kW of power, all of which is used to drive the compressor. Assuming the cold-air standard and an isentropic efficiency of 85% for the compressor and turbine, determine (a) the propulsive efficiency and (b) the propulsive power of this engine.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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