A single cylinder, single acting, four stroke oil engine develops 22 kW at 350 rpm. The work done by the gases during the expansion stroke is 2.3 times the work done on the gases during the compression and the work done during the suction and exhaust strokes is negligible. The speed is to be maintained within ± 1%. Determine the mass moment of inertia of the flywheel

A single cylinder, single acting, four stroke oil engine develops 22 kW at 350 rpm. The work done by the gases during the expansion stroke is 2.3 times the work done on the gases during the compression and the work done during the suction and exhaust strokes is negligible. The speed is to be maintained within ± 1%. Determine the mass moment of inertia of the flywheel

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.11P: Solve Prob. 7.10 assuming that the pick-up truck has front-wheel drive.

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In case of a single cylinder double acting steam engine, 180 kW power is being developed at a mean speed of 120 r.p.m. The coefficient of fluctuation of energy is 0.12. The fluctuation of speed is ± 2% of mean speed. The flywheel rim has mean diameter of 2 metre. The hub and spokes of the flywheel provide 8% of the rotational inertia of the flywheel. If the density of the flywheel material is 7200 kg/m3, determine the mass and cross-sectional area of the flywheel rim.
Determine the torque needed to bring a turbine whose moment of inertia of 60 slugs-ft² to rest in 1.2 sec from an initial speed of 764 rpm. The correct answer is 400 lb-ft.
The turning-moment diagram for one cycle of a multi-cylinder engine shows fluctuations in energy above and below the mean-torque line as follows: –62·5 J, +105·7 J, –27·3 J, +63·3 J, –59·1 J, +25·2 J, –99·3 J and +54 J. Sketch the diagram and use it to find the mass of the flywheel, radius of gyration 220 mm, needed to keep the engine speed within the range 898 to 902 rev/min
The energy-released by a flywheel having a mass of 2 kN and radius of gyration of 1.2 m when its speed decreases from 460 rpm to 435 rpm is ___________ kJ.
A cylinder with rotational inertia 0.050 kg m2 is spinning with angular velocity 25 rad/s, clockwise with negligible friction about a vertical axis. A second cylinder that is not spinning is centered above and dropped onto the spinning cylinder. Kinetic friction produces torque of amount 0.60 Nm that affects both objects until the two cylinders spin together at angular velocity 18 rad/s, clockwise. (a) Determine the amount of time it takes for friction to cause the two objects to spin together.(b) Determine the rotational inertia of the second cylinder that was dropped onto the first.(c) Determine the total amount of heat and sound energy resulting from the interaction of the cylinders.
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