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Location:
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Danabari and Chisapani VDC, Ilam District, Eastern Development Region of Nepal
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Purpose of Project:
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To supply for domestic use by connecting to national grid
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Hydrology:
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Catchment Area
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589.0 km2
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Design Flow
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16.0 m3/s (48.31% ecceedance flow)
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90% Exceedance flow
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7.48 m3/s
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Design Flood (Q100)
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2070 m3/s
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Design Flood (Q1000)
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3007 m3/s
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Diversion Dam:
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Type
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Free flow concrete gravity dam
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Slope
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Ogee-profile
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River Diversion During Construction:
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Alignment
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Along the river channel
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Coffer dams
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Two cofferdams facilitating stage1 and stage2 concreting total coffer da
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Undersluice(B * H):
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@ 3 Nos
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Intake:
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Type
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Frontal Intake
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Number of Chamber
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3
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Intake canal:
Type
Length:
Width:
Height:
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RCC open canal
81 m
9 m
5.1 m (approx)
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Undersluice
Length
Width
Height
Gate No
Gate type
Gate Dimension(w*h)
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40 m
22 m
760 m
3
Radial
6 m *2 m
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Settling Basin:
Type:
No of basin:
Height:
Width|:
Length:
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Surface
4
6.40 m
28.70 m
75 m
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Headrace Culvert:
Type:
Length:
Breadth:
Height:
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RCC pressurized culvert
1077 m
4.10 m
3.90 m
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Headrace Tunnel:
Type:
Length:
Diameter:
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Inverted D
2120 m
3.80 m
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Surge Shaft
Type:
Diameter:
Height:
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Cylindrical / Vertical
8 m
28.20 m
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Diversion dam
Type,Diameter,Height
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Ogee shaped,10.60 m, 74 m
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Power House
Length,Breadth,Height,Type
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27.30 m,21.90 m , 24.50 m ,Surface
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Penstock
Type,Diameter,Length,Turbine
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Steel,2.35 m ,355 m ,2*Francis
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Tailrace
Type,Breadth,Height,Length
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RCC Canal ,4.10 m ,3.90 m , 264 m
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| Energy |
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| Gross Head |
121.6 m |
| Installed Capacity |
15.6 MW |
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Dry energy
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20748022 KWhr
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Wet energy
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82451851KWhr |
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Annual Net Energy Output
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1103199881KWhr
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Project Cost:
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2,658 million NPR (34.08 million USD),
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Cost per kW installed Capacity
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2,185 USD/kW
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