A horizontal steam engine running at 120 r.p.m. has a bore of 250 mm…
Previous year question for THEORY OF MACHINES.
Question
A horizontal steam engine running at 120 r.p.m. has a bore of 250 mm and a stroke of 400 mm. The connecting rod is 0.6 m and mass of the reciprocating parts is 60 kg. When the crank has turned through an angle of $45^\circ$ from the inner dead centre, the steam pressure on the cover end side is 550 $\text{kN/m}^2$ and that on the crank end side is 70 $\text{kN/m}^2$. Considering the diameter of the piston rod equal to 50 mm, determine:
(a) Turning moment on the crank shaft,
(b) Thrust on the bearings, and
(c) Acceleration of the flywheel, if the power of the engine is 20 kW, mass of the flywheel 60 kg and radius of gyration 0.6 m.
- Year: 2022
- Subject: THEORY OF MACHINES