During forward stroke of the piston of the double acting steam engine, the turning moment has the maximum value of 200 N.m when the crank makes an angle of 80° with the inner dead center. During the backward stroke, the maximum turning moment is 150 N.m when the crank makes 80° with the outer dead center. The turning moment diagram for the engine may be assumed for simplicity to be represented by two triangles. If the crank rotates 100 rpm and the radius of gyration of the flywheel is 1.75 m, find the coefficient of fluctuation of energy and the weight of the flywheel to keep the speed within + 0.75% of the mean speed.

During forward stroke of the piston of the double acting steam engine, the turning moment has the maximum value of 200 N.m when the crank makes an angle of 80° with the inner dead center. During the backward stroke, the maximum turning moment is 150 N.m when the crank makes 80° with the outer dead center. The turning moment diagram for the engine may be assumed for simplicity to be represented by two triangles. If the crank rotates 100 rpm and the radius of gyration of the flywheel is 1.75 m, find the coefficient of fluctuation of energy and the weight of the flywheel to keep the speed within + 0.75% of the mean speed.

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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Concept explainers

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.

Question

Q2:- During forward stroke of the piston of the double acting steam
engine, the turning moment has the maximum value of 200 N.m
when the crank makes an angle of 80° with the inner dead
center. During the backward stroke, the maximum turning
moment is 150 N.m when the crank makes 80° with the outer
dead center. The turning moment diagram for the engine may be
assumed for simplicity to be represented by two triangles. If the
crank rotates 100 rpm and the radius of gyration of the flywheel
is 1.75 m, find the coefficient of fluctuation of energy and the
weight of the flywheel to keep the speed within + 0.75% of the
mean speed.

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