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Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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
Transcribed Image Text:Question 4
It is required to design a squared, four stroke, twelve cylinder, and spark ignition engine to
propel an airplane. The following data can be used to decide some of the engine parameters.
The airplane
Mach No
0.5
ambient conditions
0.54 bar, 255 K
Thrust
5.5 kN
The piston Engine
Brake power
1000 kW
bmep
10 bar
Bsfc
0.26 (kg/hr)/kW
f
0.05
Engine speed
3000 rpm
Calculate
1. Propeller efficiency
2. Bore and stroke dimensions
3. Actual fuel and air consumption
4. Theoretical air consumption
5. Mass of fuel required per week (7 days a week and per day one trip of 5 hrs)
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