PERENTAK

Project input data. Date of estimate --- > 15-Jul-144 Headpond full supply level, m. 290.005 Headpond low supply level, m. 288.006 Head loss to turbine, % of gross head, at full load. 5.00 Comment7 Normal tailwater level, m. 186.00 Comment8 Flood tailwater level, m. 189.00 Comment9 Design powerplant flow, cubic meters per second. 4.00

10 Desired number of units. 211 Summer water temperature, degrees Celsius. 2512 System frequency, Hz. 5013 Generator power factor. 0.9014 Maximum allowable gearbox power, MW. 2 Comment15 Design standard & generator quality, industrial = 0, utility = 1. 0 Comment16 Inflation ratio since 2014 1.001718 Program output - turbine heads and flow. Reaction unit. Impulse unit.19 Maximum gross head FSL to normal and flood TWL, m. 104.00 101.0020 Rated net head 1/3 drawdown to normal and flood TWL, m. 98.17 92.8221 Rated flow per unit, cubic meters per second. 2.00 2.0022

23 Recommended type of reaction turbine.

HydroHelp 1- Turbine selection - EAGLE issue, July 2014

Enter data in blue cells only.

Comment.

23 Recommended type of reaction turbine.

24

25 Recommended type of impulse turbine.

26

2728 Generating equipment details. Reaction unit. Impulse unit.29 Turbine runner speed, rpm. 1000.0 1000.030 Reaction turb. runner throat, impulse turb. outside diameter, m. 0.556 0.09831 Required powerhouse crane capacity, tonnes. Comment. 14.8 8.832 Reaction unit horizontal axis, shaft centerline elevation. 187.96 ------------------33 Impulse turbine runner centerline elevation. ------------------ 189.2034 Generating unit capacity, MW. 1.65 1.53

35 Powerplant capacity, MW. 3.30 3.05

36

37 Water to wire cost of generating units. $US, millions. 2.68 1.54383940414243 Reaction weighted efficiency, % (=0.2x50,65,80,90,100%flow) 89.6944 Impulse weighted efficiency, % (=0.2x30,45,60,80,100%flow) 76.51454647

Comment

If there is an option for either reaction units or impulse units, select impulse if water silty, or if

reaction runner diameter less than about 1.4m. Also, if option available, reaction unit DOES INCLUDE

a turbine inlet valve for direct cost comparison.

Horizontal axis Francis turbine.

Horizontal axis BANKI (Ossberger) turbine.

If no suitable

turbines,

change

number of

units.

Comment.

Page 1.

484950 Comment515253 Additional input data.54 Unit cost of overburden excavation, $/m3. 2555 Unit cost of rock excavation, $/m3. 10056 Unit cost of concrete, including forms and reinforcing, $/m3. 75057 Unit cost of walls and roof, $/m2. 10058 Unit cost of steel in superstructure, $/ton. 5,00059 Average rock level at powerhouse, elevation, m. 190.0 Comment60 Average depth of overburden at powerhouse, m. 2.06162 Powerhouse statistics. Reaction unit. Impulse unit.63 Overburden excavation volume, m3. 420 8764 Rock excavation volume, m3. 222 2865 Concrete volume, m3. 94 2666 Additional concrete required to counter floatation, m3. 55 Not applicable67 Steel superstructure weight, metric tonnes. 7 1668 Powerhouse length, m. 12.0 7.869 Powerhouse footprint area, m2. 78 2270 Distance between unit centerlines, m. 4.00 2.6671 Approximate turbine floor level, Elevation, m. 187.41 189.1072 Draft tube sill level, elevation, m. 186.0 188.92

PERENTAK

Reaction turbine selection to include powerhouse costs, ancilliary equipment and effect of

tailwater level.

72 Draft tube sill level, elevation, m. 186.0 188.927374 Powerhouse and ancilliary equipment cost, $millions. Reaction unit. Impulse unit.75 Powerhouse excavation, concrete and superstructure. 0.16 0.1176 Total cost of draft tube gate guide and hoist equipment. 0.00 0.0077 Total cost of powerhouse crane, HVAC and water systems. 0.04 0.02

78 Cost of powerhouse and miscellaneous equip. - no units 0.19 0.1379

80 Recommended type of reaction turbine, including effect of powerhouse cost.

81 Comment

82

83 Water to wire cost of generating units. $US, millions. 2.68 Comment84 Reaction unit. Impulse unit.85868788 Generating equipment details. Reaction unit. Impulse unit.89 Turbine runner speed, rpm. 1000.0 1000.090 Reaction turbine runner throat diameter, m. 0.56 ------------------91 Required powerhouse crane capacity, tonnes. Comment. 8.2 8.892 Crane span, m. 6.5 1.78

93 Reaction unit horizontal axis, shaft centerline elevation. 187.96 ------------------

94 Generating unit capacity, MW. 1.65 1.53

95 Powerplant capacity, MW. 3.30 3.05

9697 Page 2.

Cost of civil work on powerhouse, crane, draft tube

gates/hoist and generating equipment. $US millions.2.87 1.67

Comment

Horizontal axis Francis turbine.

9899 If SAXO, shaft Comment

100 slope, degrees 0101102 Efficiencies of selected units. (reaction with powerhouse) Reaction unit. Impulse unit.103 Percent of rated flow. Efficiency, %. Efficiency, %.104 Calc. flow and efficiency at 100 % rated flow = 90.93 80.00105 Calc. flow and efficiency at 95 % rated flow = 91.81 80.25106 Calc. flow and efficiency at 90 % rated flow = 92.27 80.47107 Calc. flow and efficiency at 85 % rated flow = 92.25 80.67108 Calc. flow and efficiency at 80 % rated flow = 92.13 80.83109 Calc. flow and efficiency at 75 % rated flow = 91.80 80.94110 Calc. flow and efficiency at 70 % rated flow = 91.15 80.71111 Calc. flow and efficiency at 65 % rated flow = 90.06 80.00112 Calc. flow and efficiency at 60 % rated flow = 88.43 77.25113 Calc. flow and efficiency at 55 % rated flow = 86.14 77.52114 Calc. flow and efficiency at 50 % rated flow = 83.06 77.70115 Calc. flow and efficiency at 45 % rated flow = 79.09 76.86116 Calc. flow and efficiency at 40 % rated flow = 74.10 75.13117 Calc. flow and efficiency at 30 % rated flow = 60.60 67.60118 Calc. flow and efficiency at 20 % rated flow = 41.61 63.47119120 100121 95122 90

PERENTAK

Reaction turbine efficiency122 90123 85124 80125 75126 70127 65128 60129 55130 50131 45132 40133 30134 20135136137138139140141142143144145146147148149 Page 3.

20

40

60

80

100

20 30 40 50 60 70 80 90 100

Eff

icie

nc

y %

Flow ratio %

65

75

85

95

20 30 40 50 60 70 80 90 100

Eff

icie

nc

y %

Flow ratio %

Impulse turbine efficiency

150

151152153154155156157158 Column D Column E159 Propeller turbines160 Horizontal axis "S" type propeller turbine. ------------------ 1161 Horizontal axis pit type propeller turbine. ------------------ 1162 Vertical axis propeller turbine, concrete casing. ------------------ 1163 Vertical axis propeller turbine, steel casing. ------------------ 1164165 Kaplan turbines166 Inclined axis very low head Kaplan gear turbine. ------------------ 1167 Horizontal axis pit or mini bulb Kaplan turbine unit. ------------------ 1168 Horizontal axis "S" type Kaplan turbine. ------------------ 1169 Vertical axis small Kaplan turbine, elbow draft tube. ------------------ 1170 Vertical or inclined axis "Saxo" axial flow Kaplan turbine. ------------------ 1171 Vertical axis Kaplan turbine, concrete casing. ------------------ 1172 Vertical axis Kaplan turbine, steel casing. ------------------ 1173

If the recommended turbine is not satisfactory, a second recommendation (based on cost) can be

obtained by eliminating the recommended turbine from consideration with a zero (0) placed opposite

the recommended turbine in Column E. Suitable turbines are shown in column D.

PERENTAK

REACTION TURBINES

173174 Francis turbines.175 Horizontal axis Francis turbine. ---- YES ---- 1176 Horizontal axis double runner Francis turbine. ------------------ 1177 Vertical axis Francis turbine, concrete casing. ------------------ 1178 Vertical axis Francis turbine, steel casing. ------------------ 1179180181182 Horizontal axis low head impulse turbines. Comment Comment183 Horizontal axis BANKI (Ossberger) turbine. ---- YES ---- 1184 Horizontal axis, 1 jet, 1 turgo runer turbine. ---- YES ---- 1185 Horizontal axis, 2 jet, 1 turgo runner turbine. ---- YES ---- 1186187 Horizontal axis impulse turbines. Comment188 Horizontal axis, 1 jet, 1 runner impulse turbine. ------------------ 1189 Horizontal axis, 2 jet, 1runner impulse turbine. ---- YES ---- 1190 Horizontal axis, 1 jet per runner, 2 runner impulse turbine. ---- YES ---- 1191 Horiz. axis, 2 jets per runner, 2 runner impulse turbine. ---- YES ---- 1192193 Vertical axis impulse turbines.194 Vertical axis, 1 jet, 1 runner impulse turbine. ------------------ 1195 Vertical axis, 2 jet, 1 runner impulse turbine. ------------------ 1196 Vertical axis, 3 jet, 1 runner impulse turbine. ------------------ 1197 Vertical axis, 4 jet, 1 runner impulse turbine. ------------------ 1198 Vertical axis, 5 jet, 1 runner impulse turbine. ------------------ 1199 Vertical axis, 6 jet, 1 runner impulse turbine. ------------------ 1200 Page 4.

IMPULSE TURBINES

Headpond full supply level, m. 290.00Headpond low supply level, m. 288.00Normal tailwater level, m. 186.00Design powerplant flow, cubic meters per second. 4.00Desired number of units. 2

Recommended type of reaction turbine, including effect of tailwater.

Recommended type of impulse turbine.

PERENTAK

Basic input

data

Horizontal axis Francis turbine.

Horizontal axis BANKI (Ossberger) turbine.

Reaction unit. Impulse unit.

Reaction unit. Impulse unit.

HYDROHELP 1 A COMPUTER PROGRAM FOR SELECTION AND COSTING

HYDROELECTRIC GENERATING EQUIPMENT

Water to wire cost of generating units. $US, millions. 2.68 1.54

Powerplant capacity, MW. 3.30 3.05

Transformer cost.Powerplant capacity, MW. 30.00Generator power factor. 0.90Number of transformers 1Transformer high voltage. kV 25Transformer MVA 33Number of phases. 3Phase factor 1Inflation index - 7.07Transformer cost $M 1.182Approximate weight, tons. 29

Station service transformer cost.Transformer capacity, MW. 0.20Generator power factor. 0.90Number of transformers 1.00Transformer high voltage. kV 13.8Transformer MVA 0.22Number of phases. 3Phase factor 1Inflation index 7.07Inflation index 7.07Transformer cost $M 0.193Approximate weight, tons. 8

Transformer cost.Powerplant capacity, MW. 30.00Generator power factor. 0.90Number of transformers 1Transformer high voltage. kV 25Transformer MVA 33Number of phases. 3Phase factor 1Inflation index - (Mech equip L4) 7.07Transformer cost $M 1.182Approximate weight, tons. 29

Station service transformer cost.Transformer capacity, MW. 0.20Generator power factor. 0.90Number of transformers 1.00Transformer high voltage. kV 13.8Transformer MVA 0.22Number of phases. 3

Phase factor 1Inflation index 7.07Transformer cost $M 0.193Approximate weight, tons. 8

Program crashes if flood tailwater below normal tailwater.

After unit selection, proceed to HydroHelp 2 Francis units, or

HydroHelp 3 Impulse units, or

HydroHelp 4 Kaplan units

for detailed design and cost analysis of

prospective hydro site.

PRINT FIRST 5 PAGES ONLY

READ ALL YELLOW COMMENT CELLS FIRST

For use in Cell D6

Gross head on turbine, m. 104.00Total conduit length intake to powerhouse, m. 3,500Plant capacity factor (0.4 to 0.8) 0.6

Optional optimum head loss calculation module

Calculated probable optimum conduit head

loss intake to powerhouse, %. --- > 17.4

Red quantity in cell indicates INCORRECT data entry.

See powerhouse rock levels and overburden

excavations. Negative numbers could result in wrong

turbine selection.

Note - in HydroHelp 2, 3 and 4, the cost of the generating equipment may differ slightly

from the cost estimated by this program.

This is due to the different turbine

submergence, usage and installation cost

factors used in HydroHelp 2, 3 or 4, where

these factors are user-defined, and not

determined by the program.

Note - If a different turbine is selected when the powerhouse cost is

included, and this recommendation is accepted, de-select all other

turbines in Cells E160 to E178, to ensure the correct generating data is

shown in Cells D63 to D71.

This sheet is protected. To

remove protection,

Due to normal variations in

flow, the program will reject

propeller units where there are

less than 3 required, and/or

where the drawdown exceeds

10% of the gross head.

remove protection, password is open

$M0.000.000.000.00

0.000.000.000.000.000.000.00

Estimated

cost

The estimated cost

is shown for all

suitable turbines,

and is for

comparison only, to

facilitate unit

selection.

Where there is a

2.680.000.000.00

1.546.044.70

0.004.906.295.40

Comment 0.000.00

Comment 0.000.00

Comment 0.000.00

Where there is a

choice between

horizontal and

vertical units,

remember that

access for

maintenance on

small units is easier

with a horizontal

shaft. This is

particularly

important for

impulse units,

where maintenace

on runners and

spear jets may be

required to counter

sand erosion

effects.

COVER SHEET IF REQUIRED.

1.810 Comment

Inflation

ratio

correction

factor