Binh Dien Hydropower Project

01:18 CH @ Thứ Tư - 16 tháng 4, 2014
  • Project Owner: Binh Dien Hydropower Joint-stock Company
  • Construction location:In Binh Dien commune, Huong Tra district, Thua Thien Hue province.
  • Installed capacity:44 MW
  • Annual average power output:181.65 million kWh/year.
  • Total investment cost:1071 billion VND.
  • Commencement: 01/2005
  • Completion: 04/2009

No.

Project parameters

Units

Values

I

Basin characteristics (to site 2)

1

Basin area to site 2

km2

515

2

Mean annual runoff (Q0)

m3/s

41.7

3

Total annual runoff (Wo)

106m3

1.315,2

II

Reservoir

1

Normal water level (NWL)

m

85

2

Water level before flood (WLBF)

m

80.6

3

Dead water level (DWL)

m

53

4

Surcharged water level (SWL)

m

85.16

5

Check water level (CWL)

m

85.96

6

Reservoir area at normal water level

km2

17.08

7

Total storage capacity (Wtotal)

106m3

423.68

8

Effective storage capacity (Weffective)

106m3

344.39

9

Storage capacity for flood control (Wflood control)

106m3

70

10

Dead storage capacity (Wdead)

106m3

79.29

11

Reservoir regulation ratio

0.26

III

Discharge

1

Firm discharge (Q90%)

m3/s

21.99

2

Maximum discharge through plant

m3/s

72

3

Flood peak discharge corresponding to frequencies

P=0.1% (check)

m3/s

6.989,0

P=0.5% (design)

m3/s

5.187,0

IV

Head

1

Maximum head (Hmax)

m

78.49

2

Average head (Haver)

m

72.68

3

Minimum head (Hmin)

m

45.36

4

Design head (Hdesign)

m

68.15

V

Water level at plant downstream

26.41

1

Downstream water level when releasing design flood (Qp=0.5%)

m

27.15

2

Downstream water level when releasing check flood (Qp=0.1%)

m

6.65

3

Minimum water level (when generating 1 unit)

m

VI

Power targets

44

Installed capacity (Ninstalled)

MW

14.25

Firm capacity (Nfirm)

MW

181,656

Annual average output

106kWh

4,126,0

Installed capacity utilization hour

hour

VII

Project characteristics

1

Weir

Crest elevation

m

87

Parapet crest elevation

m

87.5

Length along weir crest

m

362.8

Crest width

m

7

Maximum height of weir

m

64

2

Spillway

Type

m

Ophiserov

Width

m

50

Sill elevation

m

73

Bottom elevation at the deepest location

m3/s

7.2

Discharge (Qp=0.5%)

m3/s

4.044,0

Discharge (Qp=0.1%)

m

4.446,0

Maximum head in front of spillway

m

12.96

Operation gate (segment gate) (5 sets)

m

10x12.57

Emergency-repair gate (01 set)

10x12.0

3

Auxiliary dam in right bank

Type

Homogeneous earth dam

Crest elevation

m

87.5

Maximum height

m

7

Length along dam crest

m

85.1

4

Waterway

4.1

Intake

Design discharge (Q)

m3/s

72

Trash rack size (1 set)

m

6.324x7.589

Dimension of operation gate

m

3.534x4.95

Dimension of repair gate

m

6.324x7.589

4.2

Penstock

Design discharge (Qmax)

m3/s

72

Length of main conduit

m

280

Diameter of main conduit

m

4.5

Length of branch conduit

m

25.8

Diameter of branch conduit

m

2.6

4.3

Hydropower plant

Type

Conduit hydropower plant

Number of unit

unit

2

Installed capacity (Ninstalled)

MW

44

Type of turbine

Francis

Diameter of impeller

m

2

Maximum discharge through plant (Qmax)

m3/s

72

Plant dimension (BxL)

m

18.25x32.1

Installation elevation

m

4.5

Assembly floor elevation

m

21.2

4.4

Flowing-out canal-trapezoidal section

Canal bottom elevation

m

4.5

Canal bottom width

m

13.5

Length of discharge canal behind plant

m

152.7

5

Distribution station

Distribution station elevation

m

30

Dimension

m

67.5x42.5

Voltage

kV

110