ESSOM COMPANY LIMITED
Section 2: Theory
6
Figure 2- 5
:
A cross flow turbine and nozzle construction
.
Figure 2- 6
:
Path of water through cross flow turbine
.
▪
Axial flow Impulse Turbine
Figure 2- 7
:
Axial flow impulse turbine
.
V
1
=
Absolute velocity at point A
V
2
=
Absolute velocity at point D
v
1
=
Relative velocity of water at point A
v
2
=
Relative velocity of water at point D
u
1
=
Peripheral velocity of blade at point
A
u
2
=
Peripheral velocity of blade at point
B
Blade
F
Runner axis of
rotation
r = Runner pitch
radius
Runner
Blade
