p1 - features of a hydropower scheme r1
TRANSCRIPT
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Features of a Hydropower Scheme
1
The Elements
Head H (variable)
Features of a Hydropower Scheme
Depends on :• Intake location• Powerhouse location• Pipe length • Pipe diameter (varies with
flow rate)
Flow Q (variable) QQ HHDepends on Hydrology :• Catchment• Rainfall• Geology • Surface cover• Study of the relative energy
outputs from flow durationcurves
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3
Features of a Hydropower Scheme
1. Storage
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Features of a Hydropower Scheme
2. Pumped Storage
Features of a Hydropower Scheme
3. Run-of -River
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Diversion Channel
I t k
Features of a Hydropower Scheme
Intake
Pipeline
Power Line
Tailrace
Powerhouse
Diversion and Intake
Access
Civil Works
Access
Channel / Pipeline & route
Powerhouse
Tailrace
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Diversions
1. Storage
9
Dam & Spillway
Diversions
2. Pumped Storage
UpperUpperreservoir
Lowerreservoir 10
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3. Run-of -River
Diversions
11
Weir & Intake
Fish passes
Pool and traverse
12
Alaskan Denil
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Leats (or Lades) and Channels
13
Pipeline or Penstock
14
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5kW
Powerhouse
500kW
2.5MW
100MW
15
Tailrace
162.5MW 500kW 50kW
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Water Turbine selection
P ll F i
Features of a Hydropower Scheme
Mechanical Design
Propeller Francis
Turgo Impulse Pelton
Generators
Features of a Hydropower Scheme
Electrical Design
Controls
Transformers & switchgear
Grid connection