Question 3 A 4-stroke, 12 cylinder piston engine is required for the propulsion of an aircraft cruising at speed of 127 m/s, at an altitude of 5000 m where the ambient conditions are 255 K and 54 kPa. The following data can be used: Thrust required 2 kN propeller efficiency 0.85 Engine brake thermal efficiency 0.32 fuel air ratio 0.06 Engine rpm 3500 Stroke Bore ratio 1.0 Volumetric efficiency 0.87 i. Calculate the engine brake power, displacement volume and cylinder dimensions Calculate the fuel required for 4 hours flight. ii.

Question 3 A 4-stroke, 12 cylinder piston engine is required for the propulsion of an aircraft cruising at speed of 127 m/s, at an altitude of 5000 m where the ambient conditions are 255 K and 54 kPa. The following data can be used: Thrust required 2 kN propeller efficiency 0.85 Engine brake thermal efficiency 0.32 fuel air ratio 0.06 Engine rpm 3500 Stroke Bore ratio 1.0 Volumetric efficiency 0.87 i. Calculate the engine brake power, displacement volume and cylinder dimensions Calculate the fuel required for 4 hours flight. ii.

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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