closed cooling water sizing

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OWNER

EPC CONTRACTOR

PACO POWER PLANT

Calculation - Calculation For CCW System

Document No: LTCA P-6032 CCW

Project No: 12889-001

Minera Panama S.A.

SK E&C USA


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Minera Panama

PACO Power Plant Project

Project No 12889-001

Calc for CCW System

Calc No.: LTCA P-6032 CCW

Rev A, 27Mar12

Page 1 of 18

SL. NO DESCRIPTION PAGE NO.

1 PURPOSE AND SCOPE 2

2 DESIGN INPUT 2

3 ASSUMPTIONS 2

4 METHODOLOGY AND ACCEPTANCE CRITERIA 3

5 CALCULATIONS 3

6 RESULTS 3

7 REFERENCES 3

8 ATTACHMENTS 3


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Minera Panama



Calc for CCW System


Rev A, 27Mar12

Page 2 of 18

1.0 PURPOSE AND SCOPE

1.1 Heat Load Calculation for Plate Heat Exchangers (PHE) & CCW design flow across PHE.

1.2 Capacity of CCW pumps1.3 Total Developed Head of CCW pumps

1.4 Net Positive Suction Head Available at CCW pumps suction

1.5 Pumps Shaft Input Power

1.6 Design Pressure for Piping

1.7 Design Temperature for Piping

1.8 Pipe Sizing (including thickness calculation and PDT selection)

1.9 Pressure Drop in Pipe

2 .0 DESIGN INPUT

2.1 2 nos. Reference 7.2


2.3 10 % Reference 7.2



2.6 10 % Reference 7.2

2.7 Design ACW inlet temperature to PHE 30 C Reference 7.2

2.8 1025.0 kg/m3 Reference 7.1

2.9 32.0 C Reference 7.2

2.10 1000.0 kg/m3 Reference 7.1

2.11 0.0480 Bar (a) Reference 7.1

2.12 0.7646 c.poise Reference 7.1

2.13 4.2 kjoule/kg C Reference 7.1

2.14 A 106 Gr B Reference 7.2

2.15 1.6 mm Reference 7.22.16 3 m/s Reference 7.2

2.17 1310 m3/hr Reference 7.4

3.0 ASSUMPTIONS ( V=Verified, U= Unverified , EJ = Engineering judgment )

3.1 85.0 % U

3.2 0.50 Bar U

3.3 0.70 Bar U

3.4 0.01 Bar U

3.5 Pressure drop across temporary suction strainers (50 % clogged condition) 0.15 Bar U

3.6 30.7 m U

3.7 29.3 m U3.8 1.0 m U

3.9 Design cold end TTD for PHE 2 C U

3.10 10 % (EJ)

3.11 1.0 Bar U

3.12 Refer

Attachment 8.7

3.13 U

Attachment 8.1 & 8.2

CCW Flow and Heat Load

Elevation of CCW pump suction centre line from TG building Ground Floor FFL

Pipe length and associated fittings as considered in the calculation are based on the tentative

piping layout. It would be frozen after the finalization of pipe routing.

Flow rate of ACW

Margin to be considered on required heat load for PHE

The purpose of this calculation is to determine the following parameters of CCW System for PACO Coal Fired Power Plant:

Viscosity of CCW at Design temperature

Margin to be considered on total flow for CCW pumps capacity calculation

Density of CCW at Design temperature

Design CCW temperature going to various coolers from PHE

Total number of PHE working

Total number of CCW pumps (per unit)

Minimum water level in CCW expansion tank from TG building Ground Floor FFL

Density of ACW at Design temperature

Total number of CCW pumps working (per unit)

Corrosion allowance considered for piping

Pipeline material of construction

Margin to be considered on required ACW Flow and CCW flow to arrive at

Design ACW and CCW flow across PHE

Total number of PHE

Pressure drop across plate heat exchangers (Including nozzle pressure loss)

Vapor pressure at Design CCW temperature

Maximum allowable velocity in CCW Pipe Sizing

Pressure drop across expansion joint

Specific heat of CCW at Design temperature

Pump efficiency

Pressure drop across control valve ( at the outlet of selected coolers )

Maximum Pressure Drop across individual cooler

Maximum water level in CCW expansion tank from TG building Ground Floor FFL


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Minera Panama



Calc for CCW System


Rev A, 27Mar12

Page 3 of 18

4.0 METHODOLOGY AND ACCEPTANCE CRITERIA

Methodology

4.1 Determine CCW design flow across PHE

4.2 Determine CCW design outlet & inlet Temperature of PHE .

4.3 Determine PHE Design Heat Load.

4.4 Determine CCW design pump Flow.

4.5 Determine Pipe size.

4.6 Determine Pump size.

4.7

4.8

4.9

4.10

4.11

4.12

4.13

4.14 Acceptance Critieria

(a)

(b)

(c)

5 .0 CALCULATION

5.1 Refer Attachment 8.1 for CCW Heat load estimation

5.2 Refer Attachment 8.2 for details of PHE sizing calculation

5.3 Refer Attachment 8.3 for details of CCW Pump sizing calculation

5.4

5.5

5.6

6.0 RESULTS

6 .1 PHE heat load 31200000 kjou le /h r

6.2 Capacity of CCW pump 1250 m3

/hr6.3 Total Developed Head of CCW pump 46 mLC

6.4 Net Positive Suction Head Available at CCW pump suction 33 mLC

6.5 Pump Shaft Input power 184.3 kW

6.6 Design Pressure for Piping 9.0 Bar(g)

6.7 Design Temperature of CCW Piping 42 C

6.8

6.9

The design temperature for the supply side is the maximum operating temperature plus 5 C.

Thedesigntemperature for thereturnside is the maximum operating temperature plus 10C. This1 0 C marginencompasses the temperature rises across

each individual cooler

Refer Attachment 8.4 for details of Pipe Sizing, Thickness Calculation

An appropriate PDT will be selected based on the system conditions. The PDTs sizes, pipe thicknesses and pressure rating will be verified with pipe

sizing and thickness calculation.

Determine NPSHA.

The specified NPSHA should be at least 10% less than the calculated NPSHA & shall be round down to nearest 1 mWC to arrive at the design NPSHA.

Refer Attachment 8.6 for details of Pressure Drop Summary Sheet

The design flow of theCCW system is used to size the pump. Thepump shutoffheadis the calculatedTDH plus a 25% margin.The minimum pump

flow is 30% of the calculated design capacity.

The design flow through thepump is theflowforeach of the individual coolers is themaximum operating flow plus a 10% margin, rounding up to the

next 5 cum/hr increment. The design flow of the headers is the sum of the individual cooler design flows in which it serves.

The pipe materials must be acceptable for use at the design temperature and pressure.

PDT selection

Determine CCW piping material.

ASTM A 106 GR. B (S) material is used for CCW Piping

The design flow across PHE,is the sum of flow through individual coolers plus a 10% margin, rounding up to the next 5 cum/hr increment.

Minimum Wall Thickness is calculated as per ASME B 31.1.

Refer Attachment 8.5 for details of Pressure Drop Calc ulation

The maximum operating pressure is based on the minimum flow TDH plus the static head from the high-high water level in the Closed Cooling Water

Head Tank to the lowest point in the system, rounded up to the nearest 0.5 bar. The de sign pressure will be based on the pump shutoff head plus the

static head from the high-high water level in the Closed Cooling Water Head Tank to the lowest point in the system plus 5% margin on the shutoff head,

rounded up to the nearest 0.5 bar.Based on the design pressure and design temperature, a pressure class for the system will selected using ASME

B16.34.The hydrostatic test pressure is calculated as 1.5 times the design pressure per ASME B31.1.

For pump head calculation the cooler circuit with the maximum pressure drop among the various coolers circuit is selected.

Piping frictional pressure drop is estimated based on the design flow.A 10% margin is added to the piping frictional losses.Darcy Weisbach equation is

used for the frictional pressure drop calculation in pipes Crane technical paper 410 is used for calculating pressure drop across valves and fittings.

Pipe size and routing must meet the terminal point pressure at the required flow

Pipe size(s) must keep the fluid flow velocity less than 3.0 m/sec.

Pipe sizes are calculated using the design flows. The minimum pipe sizes are based on maximum recommended velocity limits.

A nominal internal diameter equal to or greater than the minimum diameter calculated is chosen.

PDT selected based on design temp, design pressure and construction material

& schedule as per as

S&L 0105 Class D

Pipe size done is within allowable velocity & it comes less than 3.0 m/sec.

CCW outlet temperature is taken as ACW design inlet temperature with TTD of 2C temperature r ise for PHE & CCW inlet temperature to PHE isselected as CCW inlet temperature plus the average temperature rise of 7 C in CCW across the all coolers .

Design Heat Load for PHE is based on the sum of heat load across all individual cooler plus 10% margin, rounding up to the next 1000000 kjoule/hr

increment.

Determine Pressure drop.

Determine design temperature.

Determine design Pressure.


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Calc for CCW System


Rev A, 27Mar12

Page 5 of 18

Item No Particulars Formulae Unit Values Remarks

1.0 Heat Load (CCW Side)

1.1 Required Heat Load for PHE Hr kjoule/hr 28336534 Attachment

8.1

1.2 Margin on Heat Load (10 %) M % 10

1.3 Number of PHE operating N 1

1.4 Design Heat Load for each Plate Heat Exchanger H = (Hr * (1+M/100)) / N kjoule/hr 31170187

1.5 Selected Design Heat Load for each Plate Heat

Exchanger

HD kjoule/hr 31200000

2.0 CCW outlet temperature of PHE

2.1 ACW inlet temperature T C 30.0

2.2 TTD for plate heat exchanger TTD C 2.0

2.3 CCW outlet temperature of PHE T1 = T + TTD C 32.0

3.0 CCW flow across PHE3.1 Combined CCW flow across plate heat exchanger qCCW cum/hr 1131 Attachment

8.1

3.2 Margin to be considered on flow mCCW % 10

3.3 Design CCW flow across each operat ing PHE QCCW= qCCWx (1 + mCCW/ 100) / N cum/hr 1245

3.4 Selected Design CCW flow across each PHE QCCWD cum/hr 1250

4.0 CCW inlet temperature of PHE

4.1 Design CCW flow across plate heat exchanger QCCWD cum/hr 1250.0

4.2 Density of CCW DCCW kg/m3 1000.0

4.3 Design heat load for PHE HD kcal/hr 31200000

4.4 Specific heat of CCW SPCCW K joule/kg C 4.2

4.5 Average temperature rise in CCW across coolers TCCW= HD/ (QCCWDx SPCCWx DCCW) C 6.0

Selected Average temperature rise in CCW across

coolers

TCCWS C 7.0

4.6 Design CCW inlet temperature to PHE T2 = T1 + TCCWS C 39.0

5.0 ACW flow across PHE

5.1 Selected heat load HD kjoule/hr 31200000

5.2 ACW inlet temperature T C 30.0

5.3 Mass flow rate of ACW MACW m3/hr 1310.0

5.4 Density of ACW at average temperature to heat

exchanger

DACW kg/m3 1025.0

5.5 Mass flow rate of ACW MACW Kg/hr 1342750.0

5.6 Specific heat of ACW (approx.) SPACW k joule/kg C 4.2

5.7 Temprature rise of ACW through plate heat

exchanger

T=HD/MACW*SPACW C 6

5.8 ACW outlet temperature T ' = TACW+ T C 35.6

Plate Heat Exchanger

T = 30 C CCW OUT 1250 m3/hr

1310 T1 = 32 C

ACW OUT T2 = 39 C

T' = 35.6 C CCW IN

31200000 kcal/hr

ATTACHMENT 8.2: PHE SIZING CALCULATION


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Minera Panama



Calc for CCW System


Rev A, 27Mar12

Page 6 of 18

Particulars Formulae Unit Value Remarks

Required CCW flow across plate heat exchanger Q1 m3/hr 1131.0 Attachment 8 .1

Number of pumps working N Nos. 1.0

Flow through each pump Qp=(Q1)/N m3/hr 1131.0

Calculated CCW design flow (with 10% margin) Qdp=1.10 x Qp m3/hr 1244.1

Capacity of CCW pump QSEL m3/hr 1250

Maximum pressure drop in CCW circuit is for ID Fan coolers DP Bar 4.32 Attachment 8.6

Pressure drop across temporary strainer DPs Bar 0.15

Pressure drop across expansion joint (four number in circuit) DPex Bar 0.04

CCW pump discharge pressure P1 = DP + DPs + Dex Bar 4.51

Density of CCW water at Design temperature DCCW Bar 1000.00

Head of CCW Pump H1 = P1 x 10000 / Dccw mLC 45.10

Selected Head of CCW Pump H1sel mLC 46.0

Atmospheric Pressure PATA Bar 1.00

Vapor pre ssure of water at CCW opera ting tempera ture PVAP Bar 0.0480

Minimum water level in CCW expansion tank from TG building

Ground Floor FFL

E1 m 29.3

Elevation of CCW pump suction centre line from TG building

Ground Floor FFL

E2 m 1.0

Density of CCW water at Design temperature DCCW kg/m3 1000.0

mLC 28.30

Bar (g) 2.78

Bar (a) 3.73

mLC (a) 37.3

Net Positive Suction Head Available at CCW pump suction mLC (a) 33.0

Pump Efficiency Eff pump % 85.0

Pump Shaft Input power P power in=DCCW x QSELx PTDHx

9.81 x 100 /(3600x1000xEff

pump)

KW 184.3

Density of CCW water at Design temperature DCCW kg/m3 1000

mLC 57.50

Bar (g) 5.64

Maximum water level in CCW expansion tank from TG building

Ground Floor FFL

E3 m 30.70

Elevation of CCW pump suction centre line from TG building

Ground Floor FFL

E2 m 1.0

mLC 29.70

Bar (g) 2.91

Design pressure for CCW piping

(with 5 % margin on shut off head)

PDE = HMAX+ PSHUT x 1.05 Bar (g) 8.70

Design Pressure of CCW Piping Bar (g) 9.00

Maximum CCW temperature TCCW Max C 39.00

1.2

3.6

6.1

1.3

3.7

3.8

1.4

1.5

2.5

2.7

3.3

3.4

5.5

5.6

5.7

Pump Suction and discharge piping design temperature6

Maximum suction static head available

5.1

5.2 Pump shut off head PSHUT= 1.25 x DCCW

5.3

5.4

HMAX= E3 - E2

2.3

2.4

2.6

3.1

3.2

Minimum suction static head available

2.2

2

ATTACHMENT 8.3 CCW PUMP SIZING CALCULATION

Item No

1

1.1

Pump discharge pressure (CCW head tank at elevation above all coolers)

2.1

Pump Capacity

NPSH available

3.5

3

Pump discharge pipeline design pressure (CCW head tank at elevation above all coolers)

NPSHA=PATA -PVAP + HAWLNet positive suction head

Estimated Pump Shaft Input Power4

4.2

5

4.1

HAWL = E1 -E2


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Minera Panama Calc No : LT


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Minera Panama



Calc for CCW System

Calc No.: LT

ATTACHMENT 8.5: PRESSURE DROP CALCULATION

From Node - To Node FORMULAE N1-N2 N3-N4 N4-N5 N5-N6 N5-N7 N7-N8 N7-N9 N9-N10 N9-N11 N4-N13 N13-N14 N13-N15 N15-N16 N15-17 N17-18 N17-N19 N19-N20 N19-N21 N21-N22 N22-N23 N21-N24 N24-N25

OPERATING MODE Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design

PIPE SEGMENT

Major Inside Diameter - d1(mm) 438.15 438.15 202.72 49.25 202.72 202.72 49.25 38.10 49.25 304.80 304.80 304.80 102.26 304.80 62.71 254.51 97.18 254.51 62.71 49.25 254.51 202.72

Length - L (M) 20.00 30.00 40.00 15.00 20.00 15.00 20.00 10.00 20.00 20.00 15.00 20.00 15.00 20.00 25.00 20.00 15.00 40.00 25.00 10.00 60.00 50.00

BENDS

Elbow

90 Short Radius - Quantity


90 Long Radius - Quantity 4 5 4 2 2 2 1 1 2 2 1 2 1 1 1 2 2 4 2 1 2 4

45 Long Radius - Quantity

Pipe Bend

Radius - r/d

Included Angle of Bend - (degrees)

Quantity n (nos.)

Miter Bend


Number of Miter Breaks

Quantity

TEES

90 deg. Converging - Flow Through Run

Branch Inside Diameter - d2 (mm) 203 49 203 38

Quantity n (nos.) 1 1 1 1

90 deg. Diverging - Flow Through Run

Branch Inside Diameter - d2 (mm) 305 305 63 97 62.71 49 203

Quantity n (nos.) 1 1 1 1 1 1 1

90 deg. Converging - Flow Through Br.

Run Inside Diameter - d2 (mm)

Quantity n (nos.)

90 deg. Diverging - Flow Through Branch


Quantity n (nos.)


Branch Inside Diameter - d2 (mm)

Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)

135 deg. Converging Flow Through Run


Quantity n (nos.)

135 deg. Diverging Flow Through Run

Attachment:8.5 Pressure Drop Calculation


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Minera Panama

PACO P Pl t P j t

Calc No.: LT


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Calc for CCW System

From Node - To Node FORMULAE

OPERATING MODE

PIPE SEGMENT

Major Inside Diameter - d1(mm)

Length - L (M)

BENDS

Elbow





Pipe Bend

Radius - r/d


Quantity n (nos.)

Miter Bend


Number of Miter Breaks

Quantity

TEES



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)



Quantity n (nos.)

135 deg. Converging Flow Through Run


Quantity n (nos.)

135 deg. Diverging Flow Through Run

N24-N26 N26-N27 N6'-N5' N8'-N7' N10'-N9' N11'-N9' N9'-N7' N7'-N5' N25'-N24' N24'-N21' N23'-N22' N22'-N21' N21'-N19' N19'-N17' N17'-N15' N15'-N13' N13'-N4' N4'-N1' N20'-N19' N18'-N17' N16'-N15' N14'-N13' N5'-N4' N27'-N26' N26'-N24'

Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design Design

77.93 49.25 38.10 202.72 38.10 49.25 49.25 202.72 202.72 254.51 49.25 62.71 254.51 254.51 303.23 303.23 387.35 438.15 102.26 62.71 102.26 303.23 202.72 49.25 77.93

180.00 10.00 10.00 20.00 15.00 20.00 20.00 20.00 40.00 70.00 15.00 35.00 30.00 30.00 40.00 15.00 25.00 40.00 40.00 15.00 15.00 60.00 40.00 10.00 180.00

4 1 2 1 1 3 4 1 2 3 2 2 1 1 3 2 1 1 1 2 1 1

53 63 49 102 63 303 303 203

1 1 1 1 1 1 1 1

24

1

203 255 255 303

1 1 1 1

Attachment:8.5 Pressure Drop Calculation


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Minera Panama Calc No.: LTCA P-6032 CCW


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Calc for CCW System

Rev A, 27Mar12

Page 16 of 18

S.No Cooler Considered Nodes considered to calc ulate pressure dr op in Piping,

Valves & Fittings from pump discharge unto inlet of

cooler

Pressure drop

up to inlet of

cooler

Nodes considered to calculate pressure drop in Piping,

Valves & Fittings from outlet of cooler unto pump

suction

Pressure drop

from cooler

discharge to

pump suction

Total line

frictional

pressure drop

Margin in line

frictional

pressure drop

( 10 % )

Pressure drop

across plate

heat

exchanger

N5-N6

Pressure drop

across control

valve at cooler

outlet (wherever

applicable)

Pressure drop

across cooler /

Terminal point

pressure

Total pressure

drop

Bar Bar Bar Bar Bar Bar Bar Bar

1 Vaccum Priming Pump coolers N1-N2-N3-N4-N5-N7-N9-N11 0.51 N11'-N9'-N7'-N5-N4-N1' 0.68 1.18 0.12 0.70 0.00 1.00 3.00

2 Station Air Compressor coolers N1-N2-N3-N4-N13-N15-N17-N19-N20 0.48 N20'-N19'-N17'-N15'-N13'-N1' 0.41 0.88 0.09 0.70 0.00 1.00 2.67

3 BFP coolers N1-N2-N3-N4-N13-N15-N17-N19-N21-N22 0.82 N22'-N21'-N19'-N17'-N15'-N13'-N4'-N3'-N2'-N1' 1.01 1.83 0.18 0.70 0.00 1.00 3.71

4 BoilerAuxilaries coolers N1-N2-N3-N4-N13-N15-N17-N19-N21-N24-N25 0.73 N25'-N24'-N21'-N19'-N17'-N15'-13'-N4'-N3'-N2'-N1' 0.59 1.32 0.13 0.70 0.00 1.00 3.15

5 ID Fan coolers N1-N2-N3-N4-N13-N15-N17-N19-N21-N24-N26-N27 1.23 N27'-N26'-N24'-N21'-N19'-N17'-N15'-N13'-N4'-N2'-N1' 1.16 2.39 0.24 0.70 0.00 1.00 4.32

6 Cep coolers N1-N2-N3-N4-N5-N7-N9-N10 0.57 N10'-N9'-N7'-N5'-N4'-N3'-N2'N1' 0.46 1.03 0.10 0.70 0.00 1.00 2.83

7 Turbine Lub oil cooler N1-N2-N3-N4-N5-N7-N8 0.27 N8'-N7'-N5'-N4'-N3'-N2'-N1' 0.20 0.48 0.05 0.70 0.00 1.00 2.22

8 EH Fluid cooler N1-N2-N3-N4-N5-N7-N9-N11 0.43 N11'-N9'-N7'-N5-N4-N1' 0.17 0.60 0.06 0.70 0.00 1.00 2.36

9 Generator cooler N1-N2-N3-N4-N13-N14 0.32 N14'-N13'-N4'-N4'-N3'-N1' 0.21 0.53 0.05 0.70 0.00 1.00 2.28

10 AC compressor cololer N1-N2-N3-N4-N13-N15-N16 0.38 N16'-N15'-N13'-N4-N3'-N2'-N1' 0.24 0.61 0.06 0.70 0.00 1.00 2.37

11 SWAS N1-N2-N3-N4-N13-N15-N17-N18 0.00 N18'-N17'-N15'-N13'-N4'-N15-N2'-N1' 0.00 0.00 0.00 0.70 0.00 1.00 1.70

MAXIMUM PRESSURE DROP (CRITICAL PA TH) IN Bar 4.32

ATTACHMENT 8.6 - PRESSURE DROP SUMMARY SHEET

Attachment8.6: Pressure Drop Summry sheet

Minera Panama


Calc No.: L


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Calc for CCW System

ATTACHMENT 8.7 : CCW FLOW DIAGRAM

NODEN1-N2 N3-N4 N4-N5 N5-N6 N5-N7 N7-N8 N7-N9 N9-N10 N9-N11 N4-N13 N13-N14 N13-N15 N15-N16 N15-17 N17-18 N17-N19 N19-N20 N19-N21 N21-N22 N22-N23 N21-N24 N24-N25 N24-N26 N26-N27 N6'-N5'

Length - L (M) 20. 00 3 0.00 40.0 0 15.0 0 20.00 15.00 20.00 10.00 20.00 20.00 1 5.00 2 0.00 1 5.00 2 0.00 2 5.00 20 .00 15 .00 40 .00 25 .00 10 .00 60 .00 50. 00 180 .00 10. 00 10.0 0

NO. OF BENDS 4 5 4 2 2 2 1 1 2 2 1 2 1 1 1 2 2 4 2 1 2 4 4 1 0

NO. OF VALVES 1 1 1 1 2 2 1 1 1 1 2 3 1 1

NODEN7'-N5' N25'-N24'

N24'-

N21'

N23'-

N22'

N22'-

N21'

N21'-

N19'

N19'-

N17'

N17'-

N15'

N15'-

N13' N13'-N4' N4'-N1'

N20'-

N19'

N18'-

N17'

N16'-

N15'

N14'-

N13' N5'-N4'

N27'-

N26'

N26'-

N24' N8'-N7' N10'-N9' N11'-N9' N9'-N7'

Length - L (M) 20. 00 4 0.00 70.0 0 15.0 0 35.0 0 30.00 30.00 40.00 15.00 25.00 4 0.00 4 0.00 1 5.00 1 5.00 6 0.00 4 0.00 10 .00 18 0.00 20 .00 15 .00 20 .00 20. 00

NO. OF BENDS 1 3 4 1 2 3 2 2 1 1 3 2 1 1 1 2 1 1 0 0 2 1

NO. OF VALVES 3 1 2 1 2 1

PHE

PHE

GENERATORCOOLER

VACCUM

PRIMING

PUMP

COOLER

BFP

COOL

ER

BFP

COOLER

BFP

COOL

ER

AIR COND COMPCOOLER

SWAS

CEPCOOLER

TURBINE

LUB

OILCOOLER

EH

FLUID

OOLER

BOILER

AUXILARIES

COOLER

ID

FAN

COOLER

ID

FAN

COOLER

STATION AIRCOMPRESSOR

4 19171513

13'

5'

7'

9'

11'

11

9

7 5

1

26'

23'

21'

26

25'

24'

25

1'

24

23

22

21

27

27'

23

14

22'

16 18

14' 16' 18' 20'

10' 8' 6'

108 6

20

15' 17' 19'

4'

Attachment8.7: CCW Flow Diagram

Minera Panama



Rev A 27Mar12


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Calc for CCW System

Rev A, 27Mar12

Page 18of 18

ATTACHMENT 8.8

0

5

10

15

20

25

30

35

40

45

50

55

60

65

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800

HeadinMLC

Capacity in M3/Hr

PACO POWER PLANT - System Resistance curve for CCW System

Attachment 8.8: System Resistance curve

closed cooling water sizing

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