2801 Contract Drawings 2 of 6.pdf

REV ZONE DRAWN CHKD

1 - WAJ CCW

General Notes:

1) Calculations are provided for drawing water from either the high or low seachest via the main crossover, discharging to a generator raw water pump intake (all generator circuits are nominally similar).

The engine-mounted flexible impeller pumps are rated for a maximum suction restriction of 8 ft, so the cooling pumps are designed to lift from static WL to the intake. Pumps shall be interlocked to respective generator to ensure pump operates when engine is started, stop when engine is stopped.

2) The calculations indicate a Scot 58121-4 2.5x2.5x5 centrifugal pump has significant NPSHA at rating of

130 GPM at 15 feet (6.5 PSI).

3) Calculations assume frictional losses based on commercial steel pipe for both suction and discharge.

All raw water circuits are CUNI tube which typically amounts to roughly 70% of the loss of equivalent ID steel pipe, resulting in a conservative approximation of losses.

4) Calculations are also provided for a typical raw water overboard to ensure backpressure is within

Cummins' 5 PSI limit.

5) The following are enclosed:

Cooling booster pump suction pipe and fitting equivalent lengths

Suction head calculation and NPSHa

Cooling booster pump discharge pipe and fitting equivalent lengths

Discharge and total booster system head calculation

Overboard pipe and fitting equivalent lengths

Overboard friction calculation

Pump Curve - Manufacturer's Data

Seachest shell strainer plate estimation of head loss versus flowrate

Strainer - Manufacturer Data including Cv info

NO.

SIZE REV

A 1

DATE: SCALE: SHEET 1 OF 12

revised common 6" strainer and manifold & check valve and re-route of discharge per ref 1.

REVISION HISTORY

DESCRIPTION DATE

1. Suction and discharge equivalent lengths 4-May-20

ENGINE COOLING SYSTEM DIAGRAM 740-B640-01 3

DESCRIPTION DWG NO. REV.

REFERENCES

Driftmaster

DRAWN BY: CHECKED BY:

Replacement

WAJ CCW

DATE: BHGI PROJ #:

Cooling System Piping Calculations12DEC18 17711

MARINE DESIGN CENTER

NTS

APP'D BY: PROJECT NO. DWG. NO.

2801 740-B640-03

17711 Engine Cooling - Head Loss and Pump Sizing REV BY CHK DATE

Equivalent Lengths - 15" S/C & 6" and 3" CUNI Suction 1 WAJ CCW 4-May-20

PIPE PROPERTIES AND FRICTION FACTORS:

Pump CL Elevation: 2.25 ft-ABL

Pipe sizes, nominal CUNI (in): 3 6

Pipe ID (in): 3.31 6.357 15 ID CUNI Clad Nominal Draft: 9.00 ft-ABL

Pipe ID (ft): 0.276 0.530 1.250 Maximum Lift: -6.75 ft

Pipe Flow Area (ft ): 0.06 0.22 1.23 f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.018 0.015 0.013 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - ENGINE COOLING PUMP SUCTION TO PUMP

PIPE

Description

ID

(in)

Length

(ft)

3" tube 3.31 2.00 L 3" PIPE: 2.0 ft

6" tube 6.36 4.25 L 6" PIPE: 4.3 ft

15" S/C 15.00 1.25 L 15" PIPE: 1.3 ft

VALVES & FITTINGS

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Entrance, square edge 3.31 1 0.5 7.66 0.5 7.7

3" Gate Valve 3.31 1 8 0.144 2.21 0.144 2.2

3" Angle Stop Check 3.31 0 200 3.6 55.17 0 0.0

3" Butterfly 3.31 0 45 0.81 12.41 0 0.0

3" Tee (through flow) 3.31 0 20 0.36 5.52 0 0.0

3" Tee (branch flow) 3.31 0 60 1.08 16.55 0 0.0

3" Elbow, 90 degree 3.31 0 14 0.252 3.86 0 0.0

3" Elbow, 45 degree 3.31 0 15 0.27 4.14 0 0.0

3"-2 1/2" Reducer 3.31 0 7 0.126 1.93 0 0.0

L EQ 3" VALVES & FITTINGS: 9.9 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

6" Entrance, square edge 6.36 1 0.5 14.72 0.5 14.7

6" Gate Valve 6.36 1 8 0.12 4.24 0.12 4.2

6" Angle Stop Check 6.36 0 55 0.825 29.14 0 0.0

6" Butterfly 6.36 0 45 0.675 23.84 0 0.0

6" Tee (through flow) 6.36 0 20 0.3 10.60 0 0.0

6" Tee (branch flow) 6.36 1 60 0.9 31.79 0.9 31.8

6" Elbow, 90 degree 6.36 3 14 0.21 7.42 0.63 22.2

6" Elbow, 45 degree 6.36 0 15 0.225 7.95 0 0.0

L EQ 6" VALVES & FITTINGS: 73.0 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

K

K

17711 Engine Cooling System - Head Loss and Pump Sizing REV BY CHK DATE

3" Pump Suction Via Seachest & 6" crossover & 6" strainer 1 WAJ CCW 4-May-20

FRICTION LOSSES:

PIPE & FITTINGS:

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 3.00 0.06 0.00 0.00 0 2.000 9.87 11.9 0

40 0.09 3.00 0.06 1.49 0.03 0.35 2.000 9.87 11.9 0.04

80 0.18 3.00 0.06 2.98 0.14 1.2 2.000 9.87 11.9 0.14

120 0.27 3.00 0.06 4.47 0.31 2.6 2.000 9.87 11.9 0.31

130 0.29 3.00 0.06 4.85 0.37 3 2.000 9.87 11.9 0.36

140 0.31 3.00 0.06 5.22 0.42 3.4 2.000 9.87 11.9 0.40

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 6"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 6.00 0.22 0.00 0.00 0 4.25 72.99 77.2 0

110 0.25 6.00 0.22 1.12 0.02 0.0843 4.25 72.99 77.2 0.07

221 0.49 6.00 0.22 2.23 0.08 0.299 4.25 72.99 77.2 0.23

331 0.74 6.00 0.22 3.35 0.17 0.64 4.25 72.99 77.2 0.49

359 0.80 6.00 0.22 3.63 0.20 0.75 4.25 72.99 77.2 0.58

386 0.86 6.00 0.22 3.91 0.24 0.85 4.25 72.99 77.2 0.66

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 15"

(GPM) (ft /sec) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 15.00 1.23 0.00 0.00 0 1.25 1.3 0

110 0.25 15.00 1.23 0.20 0.00 0.003 1.25 1.3 0.00

221 0.49 15.00 1.23 0.40 0.00 0.006 1.25 1.3 0.00

331 0.74 15.00 1.23 0.60 0.01 0.008 1.25 1.3 0.00

359 0.80 15.00 1.23 0.65 0.01 0.009 1.25 1.3 0.00

386 0.86 15.00 1.23 0.70 0.01 0.010 1.25 1.3 0.00

NPSHA

STRAINER

PL*

STRAINER*

STATIC

HEAD

TDH NPSHr

(GPM) 3" 6" 15" (ft) (ft) (ft) (ft) (ft)

0 0.00 0.00 0.00 0.000 0.00 -6.75 -6.75 39.51 24 4.25

40 0.04 0.07 0.00 0.007 0.16 -6.75 -6.47 39.24 23 4.25

80 0.14 0.23 0.00 0.028 0.65 -6.75 -5.70 38.46 20 4.25

120 0.31 0.49 0.00 0.062 1.47 -6.75 -4.41 37.18 16 4.5

130 0.36 0.58 0.00 0.073 1.73 -6.75 -4.01 36.78 15 5

140 0.40 0.66 0.00 0.085 2.00 -6.75 -3.60 36.37 14 5.75

* flow through strainer plate, 15" S/C, 6" strainer, and 6" suction assumes two main engine circuits at rated capacity, plus hybrid cooling pump at rated capacity.

NPSHa = Ha +/- Hz - Hf + Hv - Hvp

Hvp MIN = 0.122 PSIA @ 40F Water 0.282 feet

Hvp MAX = 0.507 PSI @ 80F Water 1.170 feet

Ha = 14.696 PSIA 33.93 feet at 60F

Ha = 33.93 ft

Hz = -6.75 ft (max, negative is suction head, positive is lift)

Hf = varies ft (see above)

Hv = 0.00 ft (velocity head included in MFR NPSHR, so omitted here)

Hvp = 1.170 ft (max)

NPSHa = 39.51 feet minus ∆PFRICTION

FLOW RATE

PUMP CURVETOTAL

SUCTION

HEAD

PIPE & FITTING FRICTION

∆P (ft)

39.51 39.24 38.46

37.18 36.78

36.37

4.25 4.25 4.25 4.5

5.75

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

40.00

45.00

0 20 40 60 80 100 120 140 160

ENGINE COOLING SYSTEM

NPSH - Suction Side

NPSHA NPSHr

POSITIVE HEAD AVAILABLE AT FT130 GPM = 31.8

Equivalent Lengths - 3" Pump Discharge to Generator 1 WAJ CCW 4-May-20

PIPE PROPERTIES AND FRICTION FACTORS: Pump CL Elevation: 2.25 ft-ABL

Generator H20 Pump Elevation 17.94 ft-ABL

Pipe sizes, nominal CUNI (in): 2.5 3 Maximum Static Discharge Head: 15.69 ft

Pipe ID (in): 2.709 3.31 Desired Discharge Pressure (at entrance 0 PSI

Pipe ID (ft): 0.226 0.276 to engine mounted pump) 0.00 ft

Pipe Flow Area (ft ): 0.04 0.06 Effective Static Discharge Head: 15.69 ft f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.018 0.018 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - ENGINE COOLING BOOSTER PUMP DISCHARGE

Reflecting inboard generator P or S - longest pipe run

PIPE

Description

ID

(in)

Length

(ft)

2 1/2" tube 2.71 1.75 L 2 1/2" PIPE: 1.8 ft

3" tube 3.31 21.75 L 3" PIPE: 21.8 ft

VALVES & FITTINGS

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

2 1/2" Elbow, 90 degree 2.71 1 14 0.252 3.16 0.252 3.2

L EQ 2 1/2" VALVES & FITTINGS: 3.2 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Entrance, square edge 3.31 0 0.5 7.66 0 0.0

3" Gate Valve 3.31 0 8 0.144 2.21 0 0.0

3" Check Valve 3.31 1 100 1.8 27.58 1.8 27.6

3" Butterfly 3.31 1 45 0.81 12.41 0.81 12.4

3" Tee (through flow) 3.31 1 20 0.36 5.52 0.36 5.5

3" Tee (branch flow) 3.31 0 60 1.08 16.55 0 0.0

3" Elbow, 90 degree 3.31 5 14 0.252 3.86 1.26 19.3

3" Elbow, 45 degree 3.31 1 7 0.126 1.93 0.126 1.9

3"-2 1/2" Reducer 3.31 2 7 0.126 1.93 0.252 3.9

L EQ 3" VALVES & FITTINGS: 70.6 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

K

3" Pump Discharge - Generator 1 WAJ CCW 4-May-20

FRICTION LOSSES:

PIPE & FITTINGS:

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 2 1/2"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 2.5 0.04 0.00 0.00 0 1.75 3.2 4.9 0

40 0.09 2.5 0.04 2.23 0.077 0.82 1.75 3.2 4.9 0.04

80 0.18 2.5 0.04 4.45 0.308 3.3 1.75 3.2 4.9 0.16

120 0.27 2.5 0.04 6.68 0.693 7.1 1.75 3.2 4.9 0.35

130 0.29 2.5 0.04 7.24 0.814 8.22 1.75 3.2 4.9 0.40

140 0.31 2.5 0.04 7.79 0.944 9.5 1.75 3.2 4.9 0.47

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 3.00 0.06 0.00 0.00 0 21.75 70.61 92.4 0.00

40 0.09 3.00 0.06 1.49 0.03 0.35 21.75 70.61 92.4 0.32

80 0.18 3.00 0.06 2.98 0.14 1.2 21.75 70.61 92.4 1.11

120 0.27 3.00 0.06 4.47 0.31 2.6 21.75 70.61 92.4 2.40

130 0.29 3.00 0.06 4.85 0.37 3 21.75 70.61 92.4 2.77

140 0.31 3.00 0.06 5.22 0.42 3.4 21.75 70.61 92.4 3.14

STATIC

HEAD

TDH NPSHr

(GPM) 2 1/2" 3" (ft) (ft) (ft) (ft)

0 0.00 0.00 15.69 15.69 -6.75 8.94 24 4.25

40 0.04 0.32 15.69 16.05 -6.47 9.58 23 4.25

80 0.16 1.11 15.69 16.96 -5.70 11.26 20 4.25

120 0.35 2.40 15.69 18.44 -4.41 14.02 16 4.5

130 0.40 2.77 15.69 18.86 -4.01 14.85 15 5

140 0.47 3.14 15.69 19.29 -3.60 15.69 14 5.75

Maximum permissible head from crankshaft CL (18'-2" ABL) with 15 PSI cap = 41 ft (Cummins D19-MX-1) which is 59'-2" ABL or 56'-11" above booster pump CL.

PUMP CURVE

FLOW RATE

TOTAL

DISCHARGE

HEAD

TOTAL

SYSTEM

HEAD

PIPE & FITTING FRICTION

∆P (ft) TOTAL

SUCTION

HEAD

8.94 9.58

11.26

14.02 14.85

15.69

0.00

20.00

40.00

60.00

80.00

100.00

120.00

140.00

160.00

0.00

5.00

10.00

15.00

20.00

25.00

30.00

0 20 40 60 80 100 120 140 160

ENGINE COOLING SYSTEM & PUMP CURVE

Discharge to Generator

TOTAL SYSTEM HEAD TDH NPSHA NPSHr

Equivalent Lengths - 3" Pump Discharge to Generator 0 WAJ CCW 12DEC18

PIPE PROPERTIES AND FRICTION FACTORS: Engine Outlet Elevation: 19.44 ft-ABL

OVBD Elevation: 12.44 ft-ABL

Pipe sizes, nominal CUNI (in): 2.5 3 Maximum Static Discharge Head: -7.00 ft

Pipe ID (in): 2.709 3.31

Pipe ID (ft): 0.226 0.276

Pipe Flow Area (ft ): 0.04 0.06 Effective Static Discharge Head: 0.00 ft f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.018 0.018 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - ENGINE MOUNTED PUMP DISCHARGE

PIPE

Description

ID

(in)

Length

(ft)

2 1/2" tube 2.71 0.00 L 2 1/2" PIPE: 0.0 ft

3" tube 3.31 7.17 L 3" PIPE: 7.2 ft

VALVES & FITTINGS

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

2 1/2" Elbow, 90 degree 2.71 1 14 0.252 3.16 0.252 3.2

1 1/2" Hydrant Valve 2.71 0 200 3.6 45.15 0 0.0

L EQ 2 1/2" VALVES & FITTINGS: 3.2 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Entrance, square edge 3.31 0 0.5 7.66 0 0.0

3" Gate Valve 3.31 1 8 0.144 2.21 0.144 2.2

3" Check Valve 3.31 0 100 1.8 27.58 0 0.0

3" Butterfly 3.31 0 45 0.81 12.41 0 0.0

3" Tee (through flow) 3.31 0 20 0.36 5.52 0 0.0

3" Tee (branch flow) 3.31 0 60 1.08 16.55 0 0.0

3" Elbow, 90 degree 3.31 2 14 0.252 3.86 0.504 7.7

3" Elbow, 45 degree 3.31 2 7 0.126 1.93 0.252 3.9

3"-2 1/2" Reducer 3.31 1 7 0.126 1.93 0.126 1.9

L EQ 3" VALVES & FITTINGS: 15.7 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

DESCRIPTION

K

3" Pump Discharge - Generator 0 WAJ CCW 12DEC18

FRICTION LOSSES:

PIPE & FITTINGS:

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 2 1/2"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 2.5 0.04 0.00 0.00 0 0 3.2 3.2 0

40 0.09 2.5 0.04 2.23 0.077 0.82 0 3.2 3.2 0.03

80 0.18 2.5 0.04 4.45 0.308 3.3 0 3.2 3.2 0.10

120 0.27 2.5 0.04 6.68 0.693 7.1 0 3.2 3.2 0.22

130 0.29 2.5 0.04 7.24 0.814 8.22 0 3.2 3.2 0.26

140 0.31 2.5 0.04 7.79 0.944 9.5 0 3.2 3.2 0.30

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 3.00 0.06 0.00 0.00 0 7.17 15.72 22.9 0.00

40 0.09 3.00 0.06 1.49 0.03 0.35 7.17 15.72 22.9 0.08

80 0.18 3.00 0.06 2.98 0.14 1.2 7.17 15.72 22.9 0.27

120 0.27 3.00 0.06 4.47 0.31 2.6 7.17 15.72 22.9 0.60

130 0.29 3.00 0.06 4.85 0.37 3 7.17 15.72 22.9 0.69

140 0.31 3.00 0.06 5.22 0.42 3.4 7.17 15.72 22.9 0.78

(per D19-MX-1 for QSK19)

STATIC

HEAD

PSI ft

(GPM) 2 1/2" 3" (ft) (ft) (% MFR LIMIT)

0 0.00 0.00 0.00 0.00 0% 5 11.54

40 0.03 0.08 0.00 0.11 1% 5 11.54

80 0.10 0.27 0.00 0.38 3% 5 11.54

120 0.22 0.60 0.00 0.82 7% 5 11.54

130 0.26 0.69 0.00 0.95 8% 5 11.54

140 0.30 0.78 0.00 1.08 9% 5 11.54

MFR LIMIT

PIPE & FITTING FRICTION

DESCRIPTION

FLOW RATE

∆P (ft) TOTAL

DISCHARGE

HEAD

TOTAL

DISCHARGE

Marine Bronze Motorpump™ 2 1/2 Suction 2 1/2 Discharge

4 Pole 50-60 Hz 1450-1750 RPM

Group - 58000 Model - 58121-4

October 24, 2017

Impeller vs Motor HP

50 60 M 50 Hz 60 Hz 50 Hz 60 Hz Imp Hz Hz inches 220 V 230 V 380 V 230 V

562 1 1/2 1 1/2 10.50 ** 7.9 2.6 4.8 525 1 1 10.25 ** 7.1 1.9 3.8 500 1 1 10.25 ** 7.1 1.9 3.8

Single phase amps for 115 V 60 Hz is double 230 V amps Three phase amps for 460 V 60 Hz is one half 230 V amps ** = Special Order - 50 Hz motor

Motor HP Single Phase Amperes - 1450-1750 RPM TEFC

Three Phase

Pump

• Heavy-duty All Bronze marine pump Style C – for sea water. Pump has a solid cast bronze alloy 954 stub shaft.

• Pump discharge and suction have groove NPT, ANSI and Navy Flange couplings are available

• Designed to dramatically reduce galvanic action

• Hardware - External - Type 300 stainless steel Internal – Type 316 stainless steel

• Enclosed impeller for solids to 5/8 inch

• Designed for continuous 24 / 7 operation.

Shaft Seal

• Rated at 125 PSI

• Buna rubber parts, ceramic stationary element, carbon rotating element, seawater stainless steel spring and metal components Motor – 4 Pole

• Totally enclosed fan cooled IP-44 motors meet marine, European, and Coast Guard ignition protected requirements.

• Sealed ball bearings

• Single phase motors must be ordered specifically for either 50 Hz or 60 Hz.

• Single-phase motors are capacitor start 50 Hz – 110-220 Volt

60 Hz – 115-230 Volt . • Three-phase – nine lead dual voltage 50 Hz – 190/380 Volt 60 Hz – 230/460 Volt

• Three-phase motors designed for dual frequency 50 Hz or 60 Hz are available.

7.43

2 1/2 GROOVELLCC

3.50

LLCC

.44 X 1.50

2 SLOTS

5.50

4.25

4.88

4.25

3.12 8.84

2 1/2 GROOVE

2.562 F21356

M

FAN COVER FOR

TEFC ONLY

1 PHASE

ONLY

Model 58121 shown with coupling and female NPT fitting on the suction and a male NPT fitting on the discharge.

Ft. Lauderdale, FL • Cedarburg, WI • e mail: marine@scotpump.com • www.scotpump.com • 58121-4

58121-4

50 Hz

1450 RPM

60 Hz

1750 RPM

http://www.scotpump.com/documents/CN-20090.pdf

17711 - Typical Seachest Strainer Plate

Shell Strainer, 1/2" PL Monel Perforated:

5/8" holes on 7/8" centers (Detail 10-A)

193 Intact holes

0.3068 sq in/hole

Intact hole Area = 59.2 sq inches

Partial hole Area = 6.8 sq inches

Annulus:

OD 15

ID 14.5

Area = 11.6 sq in

Total open area ~ 77.61 sq in 2.74 X 6" sea inlet valve

Perforated Plate Flow:

Q = 25AKh 1/2 so h = (Q/25AK) ft

A = 77.61 in total area of holes

K = 0.68 discharge coefficient (interpolated below)

Strainer Perforated Plate: t t/d K d = 0.625 in 0.15625 0.25 0.62 t = 0.5 in 0.5 0.800 0.68

1.25 2 0.82

Strainer Loss vs Flow:

h = (Q/25AK) ft

Q (GPM) h (ft)

0 0

110 0.007

221 0.028

331 0.062

359 0.073

386 0.085

SEA STRAINER

Pressure Drop Thru Eaton Model 53BTX Strainer (up to 4") Model 50 (5-8"):

Delta P = (Q/Cv) psi (clean perforated basket, fresh water)

Q = 130 GPM (fire pump at rated flow)

∆PFW ∆PSW hf STRAINER Weight

Size CV psi psi ft (lb)

2" 53BTX 42 9.58 9.82 22.66 209

2 1/2" 53BTX 65 4.00 4.10 9.46 229

3" 53BTX 110 1.40 1.43 3.30 357

4" 53BTX 175 0.55 0.57 1.31 487

5" Model 50 300 0.19 0.19 0.44 412

6" Model 50 420 0.10 0.10 0.23 583

8" Model 50 900 0.02 0.02 0.05 1800

BRZ, flanged

Pressure Drop Thru Eaton Model 72 Simplex Strainer (up to 8"):

Delta P = (Q/Cv) psi (clean perforated basket, fresh water)

Q = 130 GPM (strainer serving bilge pump)

∆PFW ∆PSW hf STRAINER Weight

Size CV psi psi ft (lb)

2" Model 72 73 3.17 3.25 7.50 49

2 1/2" Model 72 125 1.08 1.11 2.56 64

3" Model 72 180 0.52 0.53 1.23 85

4" Model 72 350 0.14 0.14 0.33 140

6" Model 72 900 0.02 0.02 0.05 270

8" Model 72 1400 0.01 0.01 0.02 550

BRZ, flanged

Strainer

General Notes:

1) Calculations are provided for drawing water from either the high or low seachest via the main crossover, discharging to the hybrid power cooling circuit, which includes the switchboard heat exchanger/cooling cabinet, main propulsion motor cooling cabinet, and tailshaft stern tube bearing lubricating water circuit.

Tailshaft water circuit requires ~10 GPM and ~ 12.25 feet of head to provide 4 PSI overpressure (2 psi over ambient sea pressure plus 2 PSI differential for steady FCV operation).

Motor cooling circuit is low in the vessel and requires 27 GPM.

Switchboard cooling cabinet requires 60 GPM and requires the highest static and dynamic head.

If the hybrid cooling pump can accommodate the SWBD cooling circuit at it's total flow of 99 GPM and and TDH of 29.4 ft, all branches off the hybrid cooling pump can be accommodated & regulated.

2) Pumps shall be interlocked to switchgear and propulsion motors to ensure pump operates when electrical system is energized and/or propulsion system is in operation.

3) The calculations indicate a Goulds 3656 2.5x3x7 centrifugal pump with 5.69" impeller has significant NPSHA at rated flow of 99 GPM at 29 feet (13 PSI).

4) Calculations assume frictional losses based on commercial steel pipe for both suction and discharge.

All raw water circuits are CUNI tube which typically amounts to roughly 70% of the loss of equivalent ID steel pipe, resulting in a conservative approximation of losses.

5) The following are enclosed:

Hybrid cooling pump suction pipe and fitting equivalent lengths

Suction head calculation and NPSHa

Hybrid cooling pump discharge to switchboard cooling cabinet pipe and fitting equivalent lengths

Discharge and total system head to switchboard cooling cabinet calculation

Pump Curve - Manufacturer's Data

Seachest shell strainer plate estimation of head loss versus flowrate - hybrid cooling only total flow through seachest

Strainer - Manufacturer Data including Cv info

NO.

SIZE REV

A 0

DATE: SCALE: SHEET 1 OF 10NTS

APP'D BY: PROJECT NO. DWG. NO.

2801 740-B640-04

DATE: BHGI PROJ #:

Seawater Service System Calculations11JAN19 17711

MARINE DESIGN CENTER

REFERENCES

Driftmaster

DRAWN BY: CHECKED BY:

Replacement

WAJ CCW

HYBRID POWER COOLING SYSTEM DIAGRAM 740-B640-02 0

DESCRIPTION DWG NO. REV.

REVISION HISTORY

DESCRIPTION DATE

17711 Engine Cooling - Head Loss and Pump Sizing REV BY CHK DATE

Equivalent Lengths - 15" S/C & 6",4", and 3" CUNI Suction 0 WAJ CCW 11JAN19

PIPE PROPERTIES AND FRICTION FACTORS:

Pump CL Elevation: 2.25 ft-ABL

Pipe sizes, nominal CUNI (in): 3 6

Pipe ID (in): 3.31 6.357 15 ID CUNI Clad Nominal Draft: 9.00 ft-ABL

Pipe ID (ft): 0.276 0.530 1.250 Maximum Lift: -6.75 ft

Pipe Flow Area (ft ): 0.06 0.22 1.23 f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.018 0.015 0.013 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - HYBRID COOLING PUMP SUCTION TO PUMP

PIPE

Description

ID

(in)

Length

(ft)

3" tube 3.31 4.50 L 3" PIPE: 4.5 ft

6" tube 6.36 5.25 L 6" PIPE: 5.3 ft

15" S/C 15.00 1.25 L 15" PIPE: 1.3 ft

VALVES & FITTINGS

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Entrance, square edge 3.31 1 0.5 7.66 0.5 7.7

3" Gate Valve 3.31 1 8 0.144 2.21 0.144 2.2

3" Angle Stop Check 3.31 0 200 3.6 55.17 0 0.0

3" Butterfly 3.31 0 45 0.81 12.41 0 0.0

3" Tee (through flow) 3.31 0 20 0.36 5.52 0 0.0

3" Tee (branch flow) 3.31 0 60 1.08 16.55 0 0.0

3" Elbow, 90 degree 3.31 0 14 0.252 3.86 0 0.0

3" Elbow, 45 degree 3.31 0 15 0.27 4.14 0 0.0

3"-2 1/2" Reducer 3.31 0 7 0.126 1.93 0 0.0

L EQ 3" VALVES & FITTINGS: 9.9 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq 3 Total K Total Leq

6" Entrance, square edge 6.36 1 0.5 14.72 0.5 14.7

6" Gate Valve 6.36 1 8 0.12 4.24 0.12 4.2

6" Angle Stop Check 6.36 0 55 0.825 29.14 0 0.0

6" Butterfly 6.36 0 45 0.675 23.84 0 0.0

6" Tee (through flow) 6.36 0 20 0.3 10.60 0 0.0

6" Tee (branch flow) 6.36 0 60 0.9 31.79 0 0.0

6" Elbow, 90 degree 6.36 2 14 0.21 7.42 0.42 14.8

6" Elbow, 45 degree 6.36 0 15 0.225 7.95 0 0.0

L EQ 6" VALVES & FITTINGS: 33.8 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

K

K

DESCRIPTION

3" Pump Suction Via Seachest & 6" crossover 0 WAJ CCW 11JAN19

FRICTION LOSSES:

PIPE & FITTINGS:

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE* FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

Hybrid 0 0 3.00 0.06 0.00 0.00 0 4.500 9.87 14.4 0

Cooling 40 0.09 3.00 0.06 1.49 0.03 0.35 4.500 9.87 14.4 0.05

60 0.13 3.00 0.06 2.24 0.08 0.75 4.500 9.87 14.4 0.11

80 0.18 3.00 0.06 2.98 0.14 1.2 4.500 9.87 14.4 0.17

99 0.22 3.00 0.06 3.69 0.21 1.8 4.500 9.87 14.4 0.26

120 0.27 3.00 0.06 4.47 0.31 2.5 4.500 9.87 14.4 0.36

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE** FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 6"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

Simultaneous 0 0 6.00 0.22 0.00 0.00 0 5.25 33.79 39.0 0

Hybrid, 160 0.36 6.00 0.22 1.62 0.041 0.17 5.25 33.79 39.0 0.07

Engine 240 0.53 6.00 0.22 2.43 0.091 0.35 5.25 33.79 39.0 0.14

Cooling 320 0.71 6.00 0.22 3.23 0.163 0.61 5.25 33.79 39.0 0.24

& 396 0.88 6.00 0.22 4.00 0.249 0.92 5.25 33.79 39.0 0.36

Fire Pump 480 1.07 6.00 0.22 4.85 0.366 1.29 5.25 33.79 39.0 0.50

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE** FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 15"

(GPM) (ft /sec) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

Simultaneous 0 0 15.00 1.23 0.00 0.00 0 1.25 1.3 0

Hybrid, 160 0.36 15.00 1.23 0.29 0.001 0.004 1.25 1.3 0.0

Engine 240 0.53 15.00 1.23 0.44 0.003 0.006 1.25 1.3 0.0

Cooling 320 0.71 15.00 1.23 0.58 0.005 0.009 1.25 1.3 0.0

& 396 0.88 15.00 1.23 0.72 0.008 0.013 1.25 1.3 0.0

Fire Pump 480 1.07 15.00 1.23 0.87 0.012 0.018 1.25 1.3 0.0

* Reflects flowrate through 3" dedicated suction to hybrid cooling pump.

** Reflects rated flowrate of 1x hybrid cooling, 2x engine cooling, and 1x fire pump suction at rated conditions.

NPSHA

STRAINER PL STRAINER

STATIC

HEAD

TDH NPSHr

(GPM) (GPM)

3"

(Hybrid)

6"

(Simultaneous

Flow)

15"

(Simultaneous

Flow)

(Simultaneous

Flow, ft) (ft) (ft) (ft) (ft)

0 0 0.00 0.00 0.00 0.000 0.00 -6.75 -6.75 39.51 32.75 3

160 40 0.05 0.07 0.00 0.015 0.31 -6.75 -6.31 39.07 33.75 3.25

240 60 0.11 0.14 0.00 0.033 0.70 -6.75 -5.77 38.53 32.75 3

320 80 0.17 0.24 0.00 0.058 1.25 -6.75 -5.03 37.79 31 2.9

396 99 0.26 0.36 0.00 0.089 1.92 -6.75 -4.13 36.89 29.4 3.1

480 120 0.36 0.50 0.00 0.131 2.82 -6.75 -2.94 35.70 27.25 3.75

NPSHa = Ha +/- Hz - Hf + Hv - Hvp

Hvp MIN = 0.122 PSIA @ 40F Water 0.282 feet

Hvp MAX = 0.507 PSI @ 80F Water 1.170 feet

Ha = 14.696 PSIA 33.93 feet at 60F

Ha = 33.93 ft

Hz = -6.75 ft (max, negative is suction head, positive is lift)

Hf = varies ft (see above)

Hv = 0.00 ft (velocity head included in MFR NPSHR, so omitted here)

Hvp = 1.170 ft (max)

NPSHa = 39.51 feet minus ∆PFRICTION

FLOW

RATE

(TOTAL)

DESCRIPTION

FLOW RATE

(HYBRID CLG)

PUMP CURVETOTAL

SUCTION

HEAD

PIPE & FITTING FRICTION

39.51 39.07 38.53

37.79 36.89

35.70

3 3.25 3 2.9 3.1

3.75

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

40.00

45.00

0 20 40 60 80 100 120 140

HYBRID COOLING SYSTEM

NPSH - Suction Side

NPSHA NPSHr

POSITIVE HEAD AVAILABLE AT FT99 GPM = 33.8

Equivalent Lengths - 3" Pump Discharge to Motor Cooling Cabinet 0 WAJ CCW 11JAN19

PIPE PROPERTIES AND FRICTION FACTORS: Pump CL Elevation: 2.25 ft-ABL

OVBD Elevation 14.00 ft-ABL

Pipe sizes, nominal CUNI (in): 2 2.5 3 Switchboard Cabinet EL 20 ft-ABL

Pipe ID (in): 2.209 2.709 3.31 Static Discharge Head, MTR cooling: 11.75 ft

Pipe ID (ft): 0.184 0.226 0.276 Static Discharge Head, SWBD cooling: 17.75 ft

Pipe Flow Area (ft ): 0.03 0.04 0.06 Effective Static Discharge Head: 17.75 ft f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below)Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.019 0.018 0.018 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - HYBRID COOLING DISCHARGE TO SWBD COOLING CABINET

PIPE

Description

ID

(in)

Length

(ft)

SWBD Cooling 2" tube 2.21 15.50 L 2", SWBD: 15.5 ft

SWBD Cooling 3" tube 3.31 0.50 L 3", SWBD: 0.5 ft

Common 2 1/2" tube 2.50 1.50 L 2.5" COMMON: 1.5 ft

Common 3" tube 3.31 4.33 L 3" COMMON: 4.3 ft

VALVES & FITTINGS

Switchboard Cooling Circuit

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

2" Elbow, 90 degree 2.21 8 14 0.266 2.58 2.128 20.6

2" Gate Valve 2.21 2 8 0.152 1.47 0.304 2.9

2" Globe Valve 2.21 1 340 6.46 62.59 6.46 62.6

Cooling Cabinet 2.21 Estimated in Summary

2" Measurflo FCV 2.21 Estimated in Summary

L EQ 2" VALVES & FITTINGS, SWBD: 86.2 ft

Switchboard Cooling Circuit

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Elbow, 90 degree 3.31 0 14 0.252 3.86 0 0.0

3" Gate Valve 3.31 0 8 0.144 2.21 0 0.0

3" Globe Valve 3.31 0 340 6.12 93.78 0 0.0

3" Tee (branch flow) 3.31 1 60 1.08 16.55 1.08 16.6

3" Elbow, 90 degree 3.31 0 14 0.252 3.86 0 0.0

3" Elbow, 45 degree 3.31 0 7 0.126 1.93 0 0.0

3"-2" Reducer 3.31 1 7 0.126 1.93 0.126 1.9

L EQ 3" VALVES & FITTINGS, SWBD: 18.5 ft

Common

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Entrance, square edge 3.31 0 0.5 7.66 0 0.0

3" Gate Valve 3.31 1 8 0.144 2.21 0.144 2.2

3" Check Valve 3.31 0 100 1.8 27.58 0 0.0

3" Butterfly 3.31 0 45 0.81 12.41 0 0.0

3" Tee (through flow) 3.31 1 20 0.36 5.52 0.36 5.5

3" Tee (branch flow) 3.31 0 60 1.08 16.55 0 0.0

3" Elbow, 90 degree 3.31 1 14 0.252 3.86 0.252 3.9

3" Elbow, 45 degree 3.31 0 7 0.126 1.93 0 0.0

3"-2 1/2" Reducer 3.31 1 7 0.126 1.93 0.126 1.9

L EQ 3" VALVES & FITTINGS: 13.5 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

K

DESCRIPTION

K

K

3" Pump Discharge - Motor Cooling Circuit 0 WAJ CCW 11JAN19

FRICTION LOSSES:

PIPE & FITTINGS:

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

SWBD FLOW RATE* FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 2"

Cooling (GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 2.0 0.03 0.00 0.00 0 15.50 86.15 101.7 0

24 0.05 2.0 0.03 2.01 0.06 1 15.50 86.15 101.7 1.02

36 0.08 2.0 0.03 3.01 0.14 2 15.50 86.15 101.7 2.03

48 0.11 2.0 0.03 4.02 0.25 3.4 15.50 86.15 101.7 3.46

60 0.13 2.0 0.03 5.02 0.39 5.1 15.50 86.15 101.7 5.21

72 0.16 2.0 0.03 6.03 0.56 7.2 15.50 86.15 101.7 7.32

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

SWBD FLOW RATE* FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

Cooling (GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 3.0 0.06 0.00 0.00 0 0.50 18.48 19.0 0

24 0.05 3.0 0.06 0.89 0.01 0.13 0.50 18.48 19.0 0.02

36 0.08 3.0 0.06 1.34 0.03 0.28 0.50 18.48 19.0 0.05

48 0.11 3.0 0.06 1.79 0.05 0.5 0.50 18.48 19.0 0.09

60 0.13 3.0 0.06 2.24 0.08 0.72 0.50 18.48 19.0 0.14

72 0.16 3.0 0.06 2.68 0.11 0.99 0.50 18.48 19.0 0.19

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

Common

FLOW

RATE** FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 2 1/2"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 2.50 0.04 0.00 0.00 0 1.500 1.5 0.00

40 0.09 2.50 0.04 2.23 0.077 0.9 1.500 1.5 0.01

60 0.13 2.50 0.04 3.34 0.173 1.94 1.500 1.5 0.03

80 0.18 2.50 0.04 4.45 0.308 3.29 1.500 1.5 0.05

99 0.22 2.50 0.04 5.51 0.472 4.9 1.500 1.5 0.07

120 0.27 2.50 0.04 6.68 0.693 7.1 1.500 1.5 0.11

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

Common

FLOW

RATE** FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 3.00 0.06 0.00 0.00 0 4.333 13.52 17.8 0.00

40 0.09 3.00 0.06 1.49 0.035 0.347 4.333 13.52 17.8 0.06

60 0.13 3.00 0.06 2.24 0.078 0.71 4.333 13.52 17.8 0.13

80 0.18 3.00 0.06 2.98 0.138 1.2 4.333 13.52 17.8 0.21

99 0.22 3.00 0.06 3.69 0.212 1.8 4.333 13.52 17.8 0.32

120 0.27 3.00 0.06 4.47 0.311 2.5 4.333 13.52 17.8 0.45

* Flowrate through 2" branch to switchboard cooling cabinet is limited by the flow control valve to 60 GPM max. Similarly, FCVs will regulate propulsion motor cooling cabinet circuit and tailshaft lubricating circuit.

** Flowrate through 2 1/2" pump discharge and subsequent 3" common main reflects all hybrid cooling system flow and associated pressure drop.

STATIC

HEAD

TDH NPSHr

SWBD SWBD Common ∆P cabinet ∆P FCV SWBD

(GPM) (GPM) 2" 3" 3" (est) (est) (ft) (ft) (ft) (ft)

0 0 0.00 0.00 0.00 0.00 0.00 17.75 17.75 -6.75 11.00 32.75 3

40 24 1.02 0.02 0.06 0.69 0.92 17.75 20.47 -6.31 14.16 33.75 3.25

60 36 2.03 0.05 0.13 1.56 2.08 17.75 23.60 -5.77 17.83 32.75 3

80 48 3.46 0.09 0.21 2.78 3.69 17.75 27.98 -5.03 22.95 31 2.9

99 60 5.21 0.14 0.32 4.34 5.77 17.75 33.53 -4.13 29.40 29.4 3.1

120 72 7.32 0.19 0.45 6.25 8.31 17.75 40.26 -2.94 37.32 27.25 3.75

∆P cabinet and FCV are estimated at 60 GPM flow and interpolated at square of volumetric flow for other flowrates.

DESCRIPTION

FLOW RATE

(SWBD CLG)

MAX

DISCHARGE

HEAD

∆P (ft) TOTAL

SUCTION

HEAD

PUMP CURVETOTAL

SYSTEM

HEAD

FLOW

RATE

(TOTAL)

11.00

14.16

17.83

22.95

29.40

32.75

33.75

32.75

29.4

27.25

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

0 10 20 30 40 50 60 70 80

HYBRID COOLING SYSTEM & PUMP CURVE

Inspecting SWBD Cooling CKT

TOTAL SYSTEM HEAD TDH

(S W

B D co o lin g c a b in e t o n ly

4BF2F9E0

Project no.

Project

Customer Contact Phone number Email

6/26/2018Date

Head

Shaft power P2

Efficiency

NPSH-values

60%

60%

64% 66% 68% 70%

Ø 7 1/16

71.6% Eff.

71.6%

71.4%

71.1%

70%

69.4%

67.9% 66.5%

Ø 4 1/16 64%

Ø 5 11/16

70.8% 29.4 ft

1.03 hp

70.8 %

3.08 ft

98.5 US g.p.m.

Ø 7 1/16 (P2)

Ø 4 1/16 (P2)

Ø 5 11/16 (P2)

29.4 ft

1.03 hp

70.8 %

3.08 ft

98.5 US g.p.m.

Ø 7 1/16 Ø 4 1/16

Ø 5 11/16

29.4 ft

1.03 hp

70.8 %

3.08 ft

98.5 US g.p.m.

Ø 7 1/16

Ø 4 1/16

Ø 5 11/16

29.4 ft

1.03 hp

70.8 %

3.08 ft

98.5 US g.p.m.

[ft]

0.0

0.4

0.8

1.2

1.6

2.0

2.4

[hp]

0.0

1.0

2.0

3.0

4.0

5.0

[ft]

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 [US g.p.m.]

Power datas referced to:

Sea water [100%] ; 80°F; 62.2lb/ft³; 9.18E-6ft²/s

Operating Data Specification Flow Head

Hydraulic data (duty point)

Flow Head

30 f t 100 US g.p.m.

98.5 US g.p.m.

29.4 f t

Impeller R Frequency Speed

Impeller design

1800 rpm

511/16"

10 f tStatic head

Perf ormance according to ISO 9906 - Annex A

Hz

Te nd er H yd ra ul ic

Hydraulic Data

5/8" holes on 7/8" centers (Detail 10-A)

193 Intact holes

0.3068 sq in/hole

Intact hole Area = 59.2 sq inches

Partial hole Area = 6.8 sq inches

Annulus:

OD 15

ID 14.5

Area = 11.6 sq in

Total open area ~ 77.61 sq in 2.74 X 6" sea inlet valve

Perforated Plate Flow:

Q = 25AKh 1/2 so h = (Q/25AK) ft

A = 77.61 in total area of holes

K = 0.68 discharge coefficient (interpolated below)

Strainer Perforated Plate: t t/d K d = 0.625 in 0.15625 0.25 0.62 t = 0.5 in 0.5 0.800 0.68

1.25 2 0.82

Strainer Loss vs Flow:

h = (Q/25AK) ft

Hybrid Cooling Only All Systems Flow thru S/C

Q (GPM) h (ft) Q (GPM) h (ft)

0 0 0 0

40 0.001 160 0.015

60 0.002 240 0.033

80 0.004 320 0.058

99 0.006 396 0.089

120 0.008 480 0.131 (469 is total through seachest up to first branch.)

SEA STRAINER 9

psi (clean perforated basket, fresh water)

Q = 99 GPM (fire pump at rated flow)

∆PFW ∆PSW hf STRAINER Weight

Size CV psi psi ft (lb)

2" 53BTX 42 5.56 5.70 13.14 209

2 1/2" 53BTX 65 2.32 2.38 5.49 229

3" 53BTX 110 0.81 0.83 1.92 357

4" 53BTX 175 0.32 0.33 0.76 487

5" Model 50 300 0.11 0.11 0.26 412

6" Model 50 420 0.06 0.06 0.13 583

8" Model 50 900 0.01 0.01 0.03 1800

BRZ, flanged

Pressure Drop Thru Eaton Model 72 Simplex Strainer (up to 8"):

Delta P = (Q/Cv) psi (clean perforated basket, fresh water)

Q = 99 GPM (strainer serving bilge pump)

∆PFW ∆PSW hf STRAINER Weight

Size CV psi psi ft (lb)

2" Model 72 73 1.84 1.89 4.35 49

2 1/2" Model 72 125 0.63 0.64 1.48 64

3" Model 72 180 0.30 0.31 0.72 85

4" Model 72 350 0.08 0.08 0.19 140

6" Model 72 900 0.01 0.01 0.03 270

8" Model 72 1400 0.01 0.01 0.01 550

BRZ, flanged

Strainer

General Notes:

1) Calculations are provided for the exhaust routing of ref 1 for the outboard-most generators P & S, which have the longest run. The port inboard engine has the shortest overall run but incorporates two 8" 90 degree elbows. For conservatism, the calculations assume two 8" elbows in the pipe run as opposed to one 8" and one 10" as provided on the outboard-most exhaust runs.

2) The calculations indicate the silencer and routing as indicated on reference 1 develop less than 50% of the manufacturer's backpressure limit at rated conditions, using conservative assumptions. The silencer contributes 0.77 in Hg to overall backpressure, also within recommended limit of 1 in Hg, and exhaust velocity is 70% of the recommended 10,000 FPM limit.

3) Calculations reflect the following manufacturer data (see Ref 2 & 3):

Make: Cummins Silencer: Nelson 49582U, Critical Grade

Model: QSK-19 Max Exhaust Velocity: ft/min

HP: 800 Inlet Diameter: in

RPM: 1800 Inlet Area: in

Displacement: 1150 in ft

Exhaust Gas Velocity: ft/min

Exhaust Outlet: 6 in Pressure Drop Across Silencer: (in water, per MFR data)

Exhaust Flow: 4001 CFM (" Hg)

Exhaust Temp: 860 deg F (turbine outlet) (PSI)

Specific Weight of gas: 0.030 lb/ft

(39.6/(T+460))

Max allowable backpressure, ∆P MAX: 3 in Hg

1.5 PSI

4) The following are enclosed:

Typical OTBD Exhaust pipe and fitting equivalent lengths

Typical OTBD Exhaust backpressure calculation

Silencer data

NO.

SIZE REV

A 0

DATE: SCALE: SHEET 1 OF 5

REVISION HISTORY

DESCRIPTION DATE

INSTALLATION DIAGRAM 18-016_QSK19DM_HCM634G 14-Mar-17

0.38

10000

82.52

0.5730

10.25

OK

10.5

0.77

EXHAUST SYSTEM 740-B650-01 0

DESCRIPTION DWG NO. REV.

17711

MARINE DESIGN CENTER

REFERENCES

Driftmaster

DRAWN BY: CHECKED BY:

Replacement

WAJ CCW

NTS

PROP'N MARINE ENGINE PERF DATA D19-MX-1/M4714 22-Aug-16

APP'D BY: PROJECT NO. DWG. NO.

2801 740-B650-02

DATE: BHGI PROJ #:

Exhaust System Backpressure Calculation13DEC18

17711 Exhaust System Backpressure REV BY CHK DATE

Equivalent Lengths - 6", 8" & 10" Pipe and Silencer 0 WAJ CCW 13DEC18

PIPE PROPERTIES AND FRICTION FACTORS:

Pipe sizes (in): 6 SCH 40 8 SCH 20 10 SCH 20

Pipe ID (in): 6.065 8.125 10.25

Pipe ID (ft): 0.505 0.677 0.854

Pipe Flow Area (ft ): 0.20 0.36 0.57 f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.015 0.014 0.014 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - OUTBOARD-MOST GENERATOR EXHAUST PIPING P/S

PIPE

Description

ID

(in)

Length

(ft)

6" Pipe 6.07 0.00 L 6" PIPE: 0.0 ft

8" Pipe 8.13 0.00 L 8" PIPE: 0.0 ft

10" Pipe 10.25 8.78 L 10" PIPE: 8.8 ft

VALVES & FITTINGS

Description

ID

(in) Qty Leq/D = K/ft

Leq 3 Total K Total Leq

6" Exp Joint - Lined 6.07 1 4 0.06 2.02 0.06 2.0

8"-6" Reducer 6.07 1 7 0.105 3.54 0.105 3.5

L EQ 6" FITTINGS: 5.6 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq 3 Total K Total Leq

8" Elbow, 90 degree 8.13 2 14 0.196 9.48 0.392 19.0

10"-8" Reducer 8.13 1 7 0.105 4.74 0.105 4.7

L EQ 8" FITTINGS: 23.7 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq 3 Total K Total Leq

10" Elbow, 90 degree 10.25 1 14 0.196 11.96 0.196 12.0

10" Elbow, 45 degree 10.25 2 7 0.098 5.98 0.196 12.0

10" Exp Joint - Lined 10.25 1 4 0.056 3.42 0.056 3.4

L EQ 10" FITTINGS: 27.3 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

DESCRIPTION

K

K

3" Pump Suction Via Seachest & 6" crossover 0 WAJ CCW 13DEC18

FRICTION LOSSES:

PIPE & FITTINGS:

LEQUIV LEQUIV LEQUIV ∆∆∆∆P *

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g PIPE FITTINGS TOTAL 6"

CFM (ft /sec) (ID, in) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (in H2O)

0 0.00 6.07 0.20 0.00 0.00 0.000 5.56 5.6 0.00

800 13.34 6.07 0.20 66.47 68.67 0.000 5.56 5.6 0.07

1600 26.67 6.07 0.20 132.95 274.69 0.000 5.56 5.6 0.28

2401 40.01 6.07 0.20 199.42 618.05 0.000 5.56 5.6 0.63

3201 53.35 6.07 0.20 265.90 1098.76 0.000 5.56 5.6 1.11

4001 66.68 6.07 0.20 332.37 1716.81 0.000 5.56 5.6 1.74

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g PIPE FITTINGS TOTAL 8"

CFM (ft /sec) (ID, in) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (in H2O)

0 0.00 8.13 0.36 0.00 0.00 0.00 23.70 23.7 0.00

800 13.34 8.13 0.36 37.04 21.32 0.00 23.70 23.7 0.07

1600 26.67 8.13 0.36 74.08 85.28 0.00 23.70 23.7 0.27

2401 40.01 8.13 0.36 111.12 191.89 0.00 23.70 23.7 0.62

3201 53.35 8.13 0.36 148.16 341.14 0.00 23.70 23.7 1.10

4001 66.68 8.13 0.36 185.20 533.03 0.00 23.70 23.7 1.72

LEQUIV LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g PIPE FITTINGS TOTAL 10"

CFM (ft /sec) (ID, in) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (in H2O)

0 0.00 10.25 0.57 0.00 0.00 8.78 27.33 36.1 0.00

800 13.34 10.25 0.57 23.27 8.42 8.78 27.33 36.1 0.03

1600 26.67 10.25 0.57 46.55 33.67 8.78 27.33 36.1 0.13

2401 40.01 10.25 0.57 69.82 75.76 8.78 27.33 36.1 0.30

3201 53.35 10.25 0.57 93.10 134.69 8.78 27.33 36.1 0.52

4001 66.68 10.25 0.57 116.37 210.45 8.78 27.33 36.1 0.82

SILENCER

CFM 6" 8" 10" (in H2O) (in H2O) (in Hg) (psi) (% MFR limit)

0 0.00 0.00 0.00 0.000 0.00 0.00 0.00 0%

800 0.07 0.07 0.03 1.000 1.17 0.09 0.04 3%

1600 0.28 0.27 0.13 2.750 3.43 0.25 0.12 8%

2401 0.63 0.62 0.30 4.750 6.29 0.46 0.23 15%

3201 1.11 1.10 0.52 7.250 9.99 0.74 0.36 25%

4001 1.74 1.72 0.82 10.500 14.78 1.09 0.53 36%

* Note: Pressure drop for compressible flow of exhaust gas ∆P ~ LSQ /187D

(in H2O with L in ft, S in lb/ft

,Q in ft

/min, and D in inches ).

TOTAL BACK PRESSURE

DESCRIPTION

FLOW RATE

Ro ta ry P os iti ve

Bl ow er S ile nc er s

2.18

En gi ne E xh au st Si le nc er s

2.18

Se e pa ge

.1 f or o rd er in g in fo rm at io n w w w .u ni ve rs al si le nc er

.c om

Spark Arresting Silencer Performance Engine Exhaust Silencers

31.5 63 125 250 500

Octave Band Center Frequency, Hz

Insertion Loss, dB

1K 2K 4K 8K

Critical

Residential

Typical Attenuation Curve

0 1 2 3 4 5 6 7 8 9 10

Exhaust Gas Velocity in Thousands (ft./min.)

Estim ated Pressure Drop

(Inches of W ater)

Pressure Drop

31.5 63 125 250 500

Octave Band Center Frequency, Hz

Insertion Loss, dB

1K 2K 4K 8K

Critical

0 1 2 3 4 5 6 7 8 9 10

Exhaust Gas Velocity in Thousands (ft./min.)

Estim ated Pressure Drop

(Inches of W ater)

31.5 63 125 250 500

Octave Band Center Frequency, Hz

Insertion Loss, dB

1K 2K 4K 8K

Residential

0 1 2 3 4 5 6 7 8 9 10

Exhaust Gas Velocity in Thousands (ft./min.)

Estim ated Pressure Drop

(Inches of W ater)

Residential

Critical

Industrial

Note: When figuring pressure drop for side or middle side inlet, add 4" H2O to back pressure shown on curve.

Note: When determining back pressure, velocity should not exceed 10,000 ft/min regardless of allowable back pressure. Specifications are subject to change without notice.

Ro ta ry P os iti ve

Bl ow er S ile nc er s

2.19

En gi ne E xh au st Si le nc er s

2.19

Se e pa ge

.1 f or o rd er in g in fo rm at io n w w w .u ni ve rs al si le nc er

.c om

49325U 49330U 49335U 49340U 49350U 49360U 49380U 49382U 49384U 49386U 49388U 49399U 49321U 49322U 49415U 49420U 49425U 49430U 49435U 49440U 49450U 49460U 49480U 49482U 49484U 49486U 49540U 49550U 49560U 49580U 49582U 49584U

2.5 3.0 3.5 4.0 5.0 6.0 8.0

10.0 12.0 14.0 16.0 18.0 20.0 22.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0 6.0 8.0

10.0 12.0 14.0 4.0 5.0 6.0 8.0

10.0 12.0

9.00 9.00 9.00

10.12 12.12 14.12 18.12 22.12 26.12 36.21 36.18 42.12 48.12 54.12 7.00 8.12 9.63

10.12 11.12 12.12 14.12 16.12 18.12 22.12 26.12 36.21 14.12 16.12 18.12 22.12 26.12 30.18

21.8 24.3 23.8 23.7 28.3 31.5 48.3 52.6 67.7 72.2 80.6 92.2

103.9 115.5 16.4 20.7 25.0 31.2 33.0 35.3 41.5 45.5 62.3 74.6 86.7 90.2 41.5 47.0 52.7 66.6 72.1 86.8

25.0 29.5 29.1 31.5 35.5 38.0 56.0 60.0 74.0 77.0 90.0

100.0 109.9 123.1 20.0 25.0 30.0 36.0 38.0 42.0 48.0 55.0 72.0 82.0 93.0 95.0 48.0 54.0 62.0 76.0 86.1 92.0

1.9 2.7 2.6 3.9 3.6 2.7 3.8 3.2 3.1 2.4 4.7 3.9 3.0 3.8 1.6 2.1 2.2 2.2 2.9 3.1 3.3 4.5 4.9 3.7 3.1 2.0 3.2 3.8 5.1 3.0 3.4 2.9

1.9 2.7 2.6 3.9 3.6 2.7 3.8 3.2 3.1 2.4 4.7 3.9 3.0 3.8 1.6 2.1 2.2 2.2 2.9 3.1 3.3 4.5 4.9 3.7 3.1 2.0 3.2 3.8 5.1 3.0 3.4 2.9

Part Number

A Nominal

Inlet Diameter

B Outside

Body Diameter

C Body

Length

D Overall Length

E Inlet

Length

F Outlet Length

Male pipe thread connections through 3.5", 4", and larger are 125/150# ASA drilled flanges. Drains are standard on all silencers with a 9" body diameter or larger. Side-in end-out configuration is designed for side inlet flow only.

Unit cannot be run backward. All dimensions are in inches.

In du st ria l Re si de nt ia l Cr iti ca l Standard Spark Arresting Exhaust Silencers provide high efficiency spark arresting and exceptional sound attenuation where fire hazards must be eliminated and noise must be minimized. Three attenuation grades (industrial, residential, and critical) are available with spark arresting efficiencies

Type 1 Spark Arresting Exhaust Silencers exceeding 95%. Heavy gauge material and fully welded construction provide maximum strength and longer service life in these units. Applications include stationary and portable gen sets, oil field equipment, propulsion engines on ships, and gas compression equipment.

End-In, End-Out Design

General Notes:

1) Calculations are provided for drawing bilge water from the forepeak, the most restrictive suction branch, discharging through the bilge pump discharge circuit.

2) The calculations indicate Flowmax 8DS with impeller trim of 4.47 will provide positive NPSHA and flow for the most severe suction condition. Cavitation inception will be less likely when drawing from all remaining bilge branch suctions.

3) Bilge main, branch, and pump sizing calculations per 46CFR 56.50-50 and -55 are provided in ref 1.

4) The following are enclosed:

Forepeak suction pipe and fitting equivalent lengths

Suction head calculation and NPSHa

Bilge pump discharge pipe and fitting equivalent lengths

Discharge and total system head calculation for suction from forepeak

Pump Curve - Manufacturer's Data

Rose Box estimation of loss coefficient and head loss versus flowrate

Strainer - Manufacturer Data including Cv info

NO.

SIZE REV

A 0

DATE: SCALE: SHEET 1 OF 11

REVISION HISTORY

DESCRIPTION DATE

BILGE SYSTEM DIAGRAM 740-B660-01 0

DESCRIPTION DWG NO. REV.

REFERENCES

Driftmaster

DRAWN BY: CHECKED BY:

Replacement

WAJ CCW

DATE: BHGI PROJ #:

Bilge System Piping Calculations07DEC18 17711

MARINE DESIGN CENTER

NTS

APP'D BY: PROJECT NO. DWG. NO.

2801 740-B660-02

17711 Bilge System - Head Loss and Pump Sizing REV BY CHK DATE

Equivalent Lengths - 2" Forepeak Suction thru 4" bilge manifold 0 WAJ CCW 07DEC18

PIPE PROPERTIES AND FRICTION FACTORS:

Pump CL Elevation: 2.00 ft-ABL

Pipe sizes, nominal SCH 80(in): 2 2.5 3 4 Forepeak Suction Elevation: 2.83 ft-ABL

Pipe ID (in): 1.939 2.323 2.9 3.826 Bilge Water Level 1 ft

Pipe ID (ft): 0.162 0.194 0.242 0.319 Maximum Lift: -1.83 ft

Pipe Flow Area (ft ): 0.02 0.03 0.05 0.08 f, friction factor, pipe: Friction Factors for Clean Commercial Steel Pipe, Crane 410 Table A-25, function of Reynold's Number, pipe diameter (assumed constant as below) ft, friction factor, turbulent flow (fittings): 0.019 0.018 0.018 0.017 Pipe Friction Data for Clean Commercial Steel Pipe (Turbulent Flow), Crane 410, Table A-26

EQUIVALENT LENGTH - FOREPEAK SUCTION TO PUMP

PIPE

Description

ID

(in)

Length

(ft)

2" pipe 1.94 70.00 L 2" PIPE: 70.0 ft

2 1/2" pipe 2.32 1.00 L 2 1/2" PIPE: 1.0 ft

3" pipe 2.90 2.00 L 3" PIPE: 2.0 ft

4" pipe 3.83 4.00 L 4" PIPE: 4.0 ft

VALVES & FITTINGS

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

2" Entrance, square edge 1.94 1 0.5 4.25 0.5 4.3

2" Gate Valve 1.94 1 8 0.152 1.29 0.152 1.3

2" Angle Stop Check 1.94 1 200 3.8 32.32 3.8 32.3

2" Butterfly 1.94 0 45 0.855 7.27 0 0.0

2" Tee (through flow) 1.94 1 20 0.38 3.23 0.38 3.2

2" Tee (branch flow) 1.94 0 60 1.14 9.70 0 0.0

2" Elbow, 90 degree 1.94 2 30 0.57 4.85 1.14 9.7

2" Elbow, 45 degree 1.94 1 16 0.304 2.59 0.304 2.6

2" Sudden Enlargement 1.94 1 13 0.247 2.10 0.247 2.1

L EQ 2" VALVES & FITTINGS: 55.5 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

2 1/2" Butterfly 2.32 1 45 0.81 8.71 0.81 8.7

2 1/2"-2" Reducer 2.32 1 7 0.133 1.36 0.133 1.4

L EQ 2 1/2" VALVES & FITTINGS: 10.1 ft

Description

ID

(in) Qty Leq/D = K/ft

Leq

3 Total K Total Leq

3" Entrance, square edge 2.90 1 0.5 6.36 0.5 6.4

3" Gate Valve 2.90 0 8 0.152 1.93 0 0.0

3" Angle Stop Check 2.90 0 55 1.045 13.29 0 0.0

3" Butterfly 2.90 1 45 0.855 10.88 0.855 10.9

3" Tee (through flow) 2.90 0 20 0.38 4.83 0 0.0

3" Tee (branch flow) 2.90 0 60 1.14 14.50 0 0.0

3" Elbow, 90 degree 2.90 2 14 0.266 3.38 0.532 6.8

3" Elbow, 45 degree 2.90 0 7 0.133 1.69 0 0.0

3-2 1/2" Reducer 2.90 1 7 0.133 1.69 0.133 1.7

L EQ 3" VALVES & FITTINGS: 25.7 ft

Notes: 1) Leq/D and K determined from "K" Factor table, sheets 1-4, Crane 41- ppA-26 thru A-29 for valves & fittings based on turbulent flow friction factor.

2) K calculated from tabular Leq/D and ft values where applicable; K = ft(Leq/D) or directly from tabular data, where given.

3) Valve or fitting equivalent length based on pipe ID: Leq = (Leq/D)xD or Leq = KD/ft when K taken directly from tabular data.

4) Hose friction factor assumed similar to Sch 40 clean commercial steel pipe, based on available manufacturer information.

K

K

K

DESCRIPTION

2" Forepeak Suction thru 4" bilge manifold 0 WAJ CCW 07DEC18

FRICTION LOSSES:

PIPE & FITTINGS:

IIIB-4 L LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 2"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 2 0.02 0.00 0.00 0 70 55.5 125.5 0

20 0.04 2 0.02 2.17 0.07 1.03 70 55.5 125.5 1.29

40 0.09 2 0.02 4.35 0.29 3.85 70 55.5 125.5 4.83

60 0.13 2 0.02 6.52 0.66 8.45 70 55.5 125.5 10.60

80 0.18 2 0.02 8.69 1.17 14.5 70 55.5 125.5 18.19

100 0.22 2 0.02 10.87 1.83 22.3 70 55.5 125.5 27.93

L LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 2 1/2"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 2.50 0.03 0.00 0.00 0 1 10.07 11.1 0

20 0.04 2.50 0.03 1.51 0.04 0.5 1 10.07 11.1 0.06

40 0.09 2.50 0.03 3.03 0.14 1.6 1 10.07 11.1 0.18

60 0.13 2.50 0.03 4.54 0.32 3.5 1 10.07 11.1 0.39

80 0.18 2.50 0.03 6.06 0.57 5.9 1 10.07 11.1 0.65

100 0.22 2.50 0.03 7.57 0.89 9 1 10.07 11.1 1.00

L LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 3"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 3.00 0.05 0.00 0.00 0 2 25.69 27.7 0

20 0.04 3.00 0.05 0.97 0.01 0.17 2 25.69 27.7 0.05

40 0.09 3.00 0.05 1.94 0.06 0.55 2 25.69 27.7 0.15

60 0.13 3.00 0.05 2.91 0.13 1.1 2 25.69 27.7 0.30

80 0.18 3.00 0.05 3.89 0.23 1.96 2 25.69 27.7 0.54

100 0.22 3.00 0.05 4.86 0.37 3 2 25.69 27.7 0.83

L LEQUIV LEQUIV ∆∆∆∆P

FLOW RATE FLOW RATE SIZE AREA VELOCITY V

/2g HF/100 PIPE FITTINGS TOTAL 4"

(GPM) (ft /sec) (NPS) (ft

) (ft/sec) (ft) (ft) (ft) (ft) (ft) (ft)

0 0 4.00 0.08 0.00 0.00 0 4 4.0 0

20 0.04 4.00 0.08 0.56 0.00 0.3 4 4.0 0.01

40 0.09 4.00 0.08 1.12 0.02 0.88 4 4.0 0.04

60 0.13 4.00 0.08 1.67 0.04 1.86 4 4.0 0.07

80 0.18 4.00 0.08 2.23…