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A three cylinder single acting engine has its cranks set equally at 120° and it runs at 800 r.p.m. The torque-crank angle diagram for each cycle is a triangle for the power stroke with a maximum torque of 100 N-m at 60° from dead centre of corresponding crank. The torque on the return stroke is sensibly zero. Determine: 1. power developed. 2. Coefficient of fluctuation of speed, if the mass of the flywheel is 15 kg and has a radius of gyration of 70 mm, 3. Coefficient of fluctuation of energy, and 4. Maximum angular acceleration of the flywheel.

A three cylinder single acting engine has its cranks set equally at 120° and it runs at 800 r.p.m. The torque-crank angle diagram for each cycle is a triangle for the power stroke with a maximum torque of 100 N-m at 60° from dead centre of corresponding crank. The torque on the return stroke is sensibly zero. Determine: 1. power developed. 2. Coefficient of fluctuation of speed, if the mass of the flywheel is 15 kg and has a radius of gyration of 70 mm, 3. Coefficient of fluctuation of energy, and 4. Maximum angular acceleration of the flywheel.

Elements Of Electromagnetics
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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1. A three cylinder single acting engine has its cranks set equally at 120° and it runs at 800 r.p.m. The
torque-crank angle diagram for each cycle is a triangle for the power stroke with a maximum torque of 100
N-m at 60° from dead centre of corresponding crank. The torque on the return stroke is sensibly zero.
Determine: 1. power developed. 2. Coefficient of fluctuation of speed, if the mass of the flywheel is 15 kg
and has a radius of gyration of 70 mm, 3. Coefficient of fluctuation of energy, and 4. Maximum angular
acceleration of the flywheel. 

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