# 1. An impulse turbine is operating at h = 700 m and V= 150,000 gpm. The Pelton wheel has a diameter.

1. An impulse turbine is operating at h = 700 m and V=

150,000 gpm. The Pelton wheel has a diameter of 20 ft and rotating at 300 rpm.

Find the power produced and the efficiency of the turbine. Cv =

0.94.

2. An impulse turbine operating at a net head of 2000 ft

uses a Pelton wheel of diameter 12 ft and a jet flow area of 5 in. Find the

turbine power corresponding to the best efficiency. Use velocity coefficient of

0.94 and a bucket angle of 165o.