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(IND
Due 10012010 i
Problem 1
The velocity components for a tur
turbo machine is as follows:
Outer radius, r
1
= 300 mm
Inner radius, r
2
= 150 mm
Flow rate = Q = 2 m
3
/s
Density of water,
ρ
= 1000 kg/m
3
Rotation rate =
ω
= 25 Rad/sec.
Determine the following:
a) Torque
b) Power
c) Change in head, H
d) Reaction
Homework 3
IVIDUAL Assignment)
in class at the beginning of
rbo machine are provided in Figure 1.
The
Figure 1
f lecture.
geometry for the
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A turbine is used to generate pow
The outer radius of the rotor is 6.
RPM, and the blade width is 1.5 f
velocity, V
2
, leaving the rotor is in
absolute velocity entering the roto
a) Construct the velocity vect
b) Determine the output powe
c) Determine the flow rate (ft
wer. The power output is 115,000 hp under a
.75 ft; the inner radius is 5.75 ft. The rotation
ft. The turbine efficiency is 0.95 percent. Th
n the radial direction, i.e. parallel to the radia
tor makes an angle,
φ
with the radial axis.
tors.
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 Spring '11
 COOK

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