Answer to Question #169864 in Mechanical Engineering for ANJANI PAL

Question

A steam engine develops 600 kW at 180 r.p.m. The coefficient of fluctuation of energy is

found to be 0.5 and the fluctuation of speed is required to be kept within ±1% of the mean

speed. The maximum fluctuation of the energy during operation is given by:

Answer 1

P = 600kW

$\omega$ = 180 r.p.m = $\dfrac{180×2π}{60}$ = 18.85 rad/s

fluctuation of speed = 1% × 18.85 = 0.1885

maximum flucctuation of energy = 600/0.1885 = 3181kJ