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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Function of penstock |
* Transfer water from the reservoir or forbay to the turbine. |
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Characteristics of penstock |
* Close to power house * Slope of penstock is very steep. * Water Pressure is very high |
C S W |
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Types of penstock |
According to location of arrangement - Surface penstock- Exposed to environment. - Underground penstock- Buried Underground. - Penstock inside dam: Buried in dam.
According to different materials - Steel penstock - Polyester material tube - Reinforce concrete materials |
S U P. S P R |
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Water supply way of penstock |
● Unit water supply way Each penstock is supplied with water separately for each turbine.
● Centralized water supply way A major penstock are supplied water for multiple turbines.
● Combination water supply way |
U C C |
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Unit water supply way |
Advantages. Disadvantage * Simple structure. * Expensive * Flexible operation
Application * Shorter penstock * Larger generating discharge |
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Centralized water supply way |
Advantages. * Save cost
Disadvantage * Complex structure. * Infexible operation
Application * Longer penstock * Smaller generating discharge |
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Surface penstock |
Advantages. Disadvantage *Low cost * Easy to rust * Easy to repair and install * Geological disaster
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Components of surface penstock |
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Diameter calculations |
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Thickness calculations(Q & A) |
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Thickness calculations |
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