Question

A simple impulse turbine expands steam
frictionlessly from 12 bar, 250° C with an
enthalpy of 2935 KJ/kg to an enthalpy of
2584 KJ/kg at 0.1 bar. Assuming that the
nozzle makes an angle of 20° with the
blade motion, and that the blades are
symmetrical, find the blade velocity that
produces maximum efficiency for a
turbine speed of 3600 rev/min. Assume
that the steam enters the nozzle with
negligible velocity
1) 638 m/s
2) 688 m/s
3) 724 m/s
4) 928 m/s​

Answer 1

Answer:

a simple a724m/s answer to your account