The torque exerted on the crank shaft of a two stroke engine is given by the equation: T(N-m) = 14 500 + 2300 sin 20 – 1900 cos 20 OS where 0 is the crank angle displacement from the inner dead centre. Assuming the resisting torque to be constant, determine: 1. The power of the engine when the speed is 150 r.p.m. ; 2. The moment of inertia of the flywheel if the speed variation is not to exceed ± 0.5% of the mean speed; and 3. The angular acceleration of the flywheel when the crank has turned through 30° from the inner dead [Ans. 228 kW; 1208 kg-m²; 0.86 rad/s²] centre.

The torque exerted on the crank shaft of a two stroke engine is given by the equation: T(N-m) = 14 500 + 2300 sin 20 – 1900 cos 20 OS where 0 is the crank angle displacement from the inner dead centre. Assuming the resisting torque to be constant, determine: 1. The power of the engine when the speed is 150 r.p.m. ; 2. The moment of inertia of the flywheel if the speed variation is not to exceed ± 0.5% of the mean speed; and 3. The angular acceleration of the flywheel when the crank has turned through 30° from the inner dead [Ans. 228 kW; 1208 kg-m²; 0.86 rad/s²] centre.

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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