A multi-cylinder engine is to run at a speed of 600 r.p.m. On drawing the crank-effort diagram to scale of 1 cm = 2452.5 N-m and 1 cm = 30°, the areas above and below the mean torque line in sq.cm. are as follows: +1.6, –1.72, +1.68, –1.91, +1.97 and –1.62. The speed is to be kept within ±1% of the mean speed of the engine. Calculate the necessary moment of inertia of the flywheel. Determine the suitable dimensions of a rectangular flywheel rim., if the breadth is twice the thickness. The density of the cost- %3D
A multi-cylinder engine is to run at a speed of 600 r.p.m. On drawing the crank-effort diagram to scale of 1 cm = 2452.5 N-m and 1 cm = 30°, the areas above and below the mean torque line in sq.cm. are as follows: +1.6, –1.72, +1.68, –1.91, +1.97 and –1.62. The speed is to be kept within ±1% of the mean speed of the engine. Calculate the necessary moment of inertia of the flywheel. Determine the suitable dimensions of a rectangular flywheel rim., if the breadth is twice the thickness. The density of the cost- %3D
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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Transcribed Image Text:A multi-cylinder engine is to run at a speed of 600 r.p.m. On drawing the crank-effort
diagram to scale of 1 cm = 2452.5 N-m and 1 cm = 30°, the areas above and below the
mean torque line in sq.cm. are as follows: +1.6, –1.72, +1.68, –1.91, +1.97 and -1.62.
The speed is to be kept within ±1% of the mean speed of the engine. Calculate the
necessary moment of inertia of the flywheel. Determine the suitable dimensions of a
rectangular flywheel rim, if the breadth is twice the thickness. The density of the cost-
iron is 725 gm/cm³ and its hoop stress is 588.6 N/cm?. Assume that the rim contributes
92% of the flywheel effect.
%3D
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