book 20 [ds]

-

DESIGN-IV: MACHINERY BASIC DESIGN TECHNICAL SPECIFICATION OF

DOMESTIC FW AND SW SUPPLY SYSTEM

ATTACHMENT NO. 01 02 - - -NUMBER OF PAGES 5 8 - -

DESIGN-IV: MACHINERY BASIC DESIGN

DOCUMENT NO. DOC. NO. 20 - 42 09 050 - DS

Ir. Dwi Priyanta, MSE.

Ir. Hari Prastowo, MSc.

I Gusti N. Dirgantara

APPROVED BYREV. DATE DESCRIPTION PREPARED BY CHECKED BY

ProjectDoc. NoRev.NoType

TABLE OF CONTENTS

PHILOSOPHY1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Description 11.2 Purpose 1

2. REFERENCES 13. ABBREVIATIONS 14. DESIGN PARAMETER 1

4.1 Principal Dimension 15. DESIGN REQUIREMENT 2

5.1 FRESH WATER SYSTEM 25.2 HYDROPHORE TANK VOLUME 25.3 SANITARY SYSTEM FROM SEA WATER PUMP 3

6. SUMMARY 4

ATTACHMENT NO. 01 - CALCULATION1. FRESH WATER SYSTEM 12. HYDROPHORE TA 23. SANITARY SYSTEM FROM SEA WATER PUMP 3

ATTACHMENT NO. 02 - HYDROPHORE AND PUMP SPECIFICATION

TECHNICAL SPECIFICATION OF DOMESTIC FW AND SW

SUPPLY SYSTEM

: DESIGN IV: 20 - 42 09 050 - DS: 0: Table of Contents

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1. INTRODUCTION1.1 Description

1.2 Objective

2. REFERENCESa. Germanischer Lloyd Rules and Guidelines 2011b. Engine Selection Guide - Two Stroke MC/MC-C Engines, 6th Edition: January 2002, MAN B&Wc. Ship Outfittings, pages 284d. Ship Design and Ship Teory

3. ABBREVIATIONZ = The number of crewR = DistanceVs = Service speedT = Endurance voyageVh = Hydrophore tank volumeVo = The residual fluid in tank, will be taken 2%D = Average of water consumptionPm = Maximum pressure in tankPo = Minimum pressure in tankPi = Pressure over the pipePz = Pressure in nozzleRn = Reynold numbern = viscocityhs = head statichp = head pressurehv = head velocityhf = head frictionhl = head lossesH = head total

4. DESIGN PARAMETER

4.1 Principal Dimension1. Lpp = 123 m

2. B = m

3. T = 8.8 m

4. H = m

5. LWL = m

6. Vs = knot = km/hours

7. Distance = Nm = km

8. Time of Voyage = 4 days = 96 hours


SUPPLY SYSTEM

: DESIGN IV: 19 - 42 09 050 - CA: 0: Philosophy

20.2

11.5

127.92

14.5 26.8308

The needed of hydrophore, will be use in this document. We need to calculated the tank volumeof hydrophore, that the hydrophore function is to delivered fresh water with any pressureapplied according to the requirement given. The recalculating about the freshwater consumptionin ship will be find in this document. And for the last is to find the specification of pump thatwill be used as sanitary system that will be has a relation with the next document.

This document purpose is to determine the technical specification of domestic fresh water andsea water supply system.

1200 2222.4

Page 1 of 4


5. DESIGN REQUIREMENT5.1 FRESH WATER SYSTEM

The number of crew (Z = personsDistance (R) = NmService speed (Vs) = knotsEndurance voyage (T) = days

a. LogisticTake 20 kg/person/day (C fwd) and estimated for two trips.

- Sailing Condition= Z x T x C fwd (1)

- At Port ConditionEstimated will take two days in port.

= Z x T x C fwd (2)Wfwd total = Wfwd (sailing) + Wfwd (port)

b. Bath and WashTake 200 kg/person/day (Cfww) estimated for two trips

- Sailing Condition= Z x T x C fww (3)


= Z x T x C fww (4)Wfww total = Wfww (sailing) + Wfww (port)

c. CookingTake 4 kg/person/day (Cfwc) estimated for two trips

- Sailing Condition= Z x T x C fwc (5)


= Z x T x C fwc (6)Wfww total = Wfww (sailing) + Wfww (port)

d. Machinery needs1. main engine

fresh water needs estimation = 7 gr/kWh2. auxiliary engine

fresh water needs estimation = 0.2 from main engine's fresh water= ton

Total fresh water machinery (Wfwm) = fw main engine + fw auxiliary engine

And for the total fresh water needed :Wtotal = Wfwd + Wfww + Wfwc + Wfwm (7)

5.2 HYDROPHORE TANK VOLUMEAccording to the Ship Outfittings pages 284:Vh = Vo + (D x Pm ) / ( 6 x ( Pm - Po ) (8)

Where,Vh = Hydrophore tank volume

Wfww (sailing) . . . . . . . . . . . . . . . . . . . . . . . . .


SUPPLY SYSTEM


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0.85

Wfwc (port) . . . . . . . . . . . . . . . . . . . . . . . . .

Wfwc (sailing) . . . . . . . . . . . . . . . . . . . . . . . . .

Wfww (port) . . . . . . . . . . . . . . . . . . . . . . . . .

The consumption for a person per day refered to "Ship Design and Ship Theory" and needed thedata such as;

12120014.54

Wfwd (sailing) . . . . . . . . . . . . . . . . . . . . . . . . .

Wfwd (port) . . . . . . . . . . . . . . . . . . . . . . . . .

Page 2 of 4


Vo = The residual fluid in tank, will be taken 2%D = Average of water consumptionPm = Maximum pressure in tankPo = Minimum pressure in tank

5.3 SANITARY SYSTEM FROM SEA WATER PUMP

The number of seawater pump is 1 unit with capacity 5 m3/h = m3/sHead Pumpi. Head Static (Hs)

height at z=0 to higer the discharge = mheight at z=0 to the lower suction = 0 mTherefore, the value of Hs will be determined below:

ii. Head Pressure (Hp)Hp = 1 bar

= miii. Head Velocity (Hv)

Hv = 0 m (the velocity in the suction and discharge has the same value)iv. Head Losses (Hl)

iv.1 Suctionn = kinematic viscocity

n = m2/s (1.1 cSt at 500C)

dH = Inside diameter= m (estimated 50 mm)

v = fluid velocity= m/s

Reynold number (Rn)according to formula below:Rn = (v*dH)/n (9)for the friction losses (f) = 0.02+0.0005/DThe length of pipe in suction is 15.8 m

major losses (hf1) = f x L x v2 / (D x 2g) (10)minnor losses (hl1) = k total*v2/(2g) (11)

iv.2 Dischargen = kinematic viscocity

n = m2/s (1.1 cSt at 500C)

dH = Inside diameter= m


Reynold number (Rn)according to formula below:Rn = (v*dH)/n (12)for the friction losses (f) = 0.02+0.0005/DThe length of pipe in discharge is 34.3 m

major losses (hf2) = f x L x v2 / (D x 2g) (13)minnor losses (hl2) = k total*v2/(2g)

Total Head

0.0014

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2

10.078

0.000001

0.05

0.708

0.05

0.708

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SUPPLY SYSTEM


Hs+Hp+Hv+Hl

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0.000001

Page 3 of 4


The pressure over the pipePi = ρ air tawar x Htotal (14)The pressure on the nozzlePz = 1 atm

= kg/cm2

Therefore, the maximum to be revised for the hydrophore tank is:Po = Pi+Pz

6. SUMMARY

NO1234567

8

910

The hydrophore specification that will be used:Model = UH 051 SHINKO

Capacity = 5 ~ 15 m3/hHead = 40 ~ 60 m

Operating pressure range = 3 ~ 5.5 kg/m2

Speed pump = RPMPower = 2.2 kW

For the pump selection,Merk = SHINKO PUMPType = AHJ 50-2Head = 15 m

Capacity = 5 m3/hPower = 2.2 kWRPM = 3600 RPMFrequency = 50 Hz

3600

Maximum Pressure Po 2.40 tonnes

tonnes

Pressure over the pipe Pi 1.37 kg/cm2

Pressure in nozzle Pz 1.03 kg/cm2

Hydrophore tank volume Vh 0.69 tonnesHead Total H 13.38

Weight FW cooking Wfwc 0.10 tonnesWeight FW machinery needs Wfwm 5.10 tonnesTotal Weight of Fresh Water Wfw tot 31.98 tonnes

CALCULATION SYMBOL RESULTWeight FW logistic Wfwd 2.40 tonnesWeight FW bath and wash Wfww 24.00 tonnes

1.033


SUPPLY SYSTEM


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Page 4 of 4

ATTACHMENT NO. 01 - CALCULATION TECHNICAL SPECIFICATION OF DOMESTIC FW

AND SW SUPPLY SYSTEM



1. FRESH WATER SYSTEM

The number of crew (Z) = personsDistance (R) = NmService speed (Vs) = knotsEndurance voyage (T) = days

a. LogisticTake 20 kg/person/day (C fwd) and estimated for two trips.

- Sailing Condition= Z x T x C fwd (1)= 12*2*4*20= kg= tonnes


= Z x T x C fwd (2)= 12*2*20= kg= tonnes

Wfwd total = Wfwd (sailing) + Wfwd (port)= tonnes

b. Bath and WashTake 200 kg/person/day (Cfww) estimated for two trips

- Sailing Condition= Z x T x C fww (3)= 12*2*4*200= kg= tonnes


= Z x T x C fww (4)= 12*2*200= kg= tonnes

Wfww total = Wfww (sailing) + Wfww (port)= tonnes

c. CookingTake 4 kg/person/day (Cfwc) estimated for two trips

- Sailing Condition= Z x T x C fwc (5)= 12*2*4*4= kg= tonnes


= Z x T x C fwc (6)= 12*2*4

Wfwd (sailing)

19201.92

Wfwd (port)

480


SUPPLY SYSTEM

: DESIGN IV: 20 - 42 09 050 - DS: 0: Attachment No. 01

The consumption for a person per day refered to "Ship Design and Ship Theory" and needed the datasuch as;

12120014.54

Wfwc (port)

Wfww (port)

48004.8

24

Wfwc (sailing)

0.48

2.4

Wfww (sailing)

1920019.2

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3840.384

Page 1 of 5


= kg= tonnes

Wfww total = Wfww (sailing) + Wfww (port)= tonnes

d. Machinery needs1. main engine

fresh water needs estimation = 7 gr/kWhfresh water total (1trip) = 7 gr/kWh*6320 kW*96 hours

= gram= ton

2. auxiliary enginefresh water needs estimation = 0.2 from main engine's fresh waterfresh water total (1trip) = 0.2*4.247

= tonTotal fresh water machinery (Wfwm) = fw main engine + fw auxiliary engine

= 4.247 + 0.85= ton

And for the total fresh water needed :Wtotal = Wfwd + Wfww + Wfwc + Wfwm (7)

= tonnes

Volume = 32 m3

Average of water consumption = m3/h

2. HYDROPHORE TANK VOLUMEAccording to the Ship Outfittings pages 284:Vh = Vo + (D x Pm ) / ( 6 x ( Pm - Po ) (8)

Where,Vh = Hydrophore tank volumeVo = The residual fluid in tank, will be taken 2%

= m3

D = Average of water consumption

= m3/hPm = Maximum pressure in tank

= 5.5 kg/m2

Po = Minimum pressure in tank

= kg/m2

For the result,Vh = Vo + (D x Pm ) / ( 6 x ( Pm - Po )

= 0.640+(0.167*5.5)/(6*(5.5-2.403))

= m3

The hydrophore specification that will be used:Model = UH 051 SHINKO

Capacity = 5 ~ 15 m3/hHead = 40 ~ 60 m

Operating pressure range = 3 ~ 5.5 kg/m2

Speed pump = RPMPower = 2.2 kW

960.096

31.977

0.167

0.640

0.167

0.689

2.403

0.48

42470404.24704

0.85

5.097

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3600


SUPPLY SYSTEM


Page 2 of 5


3. SANITARY SYSTEM FROM SEA WATER PUMP

The number of seawater pump is 1 unit with capacity 5 m3/h = m3/sHead Pumpi. Head Static (Hs)

height at z=0 to higer the discharge = mheight at z=0 to the lower suction = 0 mTherefore, the value of Hs will be determined below:Hs = 2+0

= 2 mii. Head Pressure (Hp)

Hp = 1 bar= m

iii. Head Velocity (Hv)Hv = 0 m (the velocity in the suction and discharge has the same value)

iv. Head Losses (Hl)iv.1 Suction

n = kinematic viscocity

n = m2/s (1.1 cSt at 500C)dH = Inside diameter

= m (estimated 50 mm)v = fluid velocity

= m/sReynold number (Rn)according to formula below:Rn = (v*dH)/n (9)

= (0.708*0.05)/0.000001= (turbulen)

for the friction losses (f) = 0.02+0.0005/D=

The length of pipe in suction is 15.8 m

major losses (hf1) = f x L x v2 / (D x 2g) (10)= 0.03*15.8*0.708^2/(0.05*2*9.8)= m

minor losses (hl1)No n

1 32 23 14 15 16 2

minnor losses (hl1) = k total*v2/(2g) (11)= 9.23*(0.708^2)/(2*9.8)= m

iv.2 Dischargen = kinematic viscocity

n = m2/s (1.1 cSt at 500C)

0.000001

0.24245

Types k nxk

Elbow 900 0.57 1.71

0.05

0.708

35400

0.03

T-joint 1.14 2.28

SDNRV 1.23 1.23

0.150.86

0.150.86

0.236

0.000001

Strainer 1.5 3total 9.23

10.078

Gate valveButtterfly valve

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0.0014

2


SUPPLY SYSTEM


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Page 3 of 5


dH = Inside diameter= m


Reynold number (Rn)according to formula below:Rn = (v*dH)/n (12)

= (0.708*0.05)/0.000001= (turbulen)

for the friction losses (f) = 0.02+0.0005/D=

The length of pipe in discharge is 34.3 m

major losses (hf2) = f x L x v2 / (D x 2g) (13)= 0.03*34.3*0.708^2/(0.05*2*9.8)= m

minor losses (hl2)No n

1 22 63 64 15 16 0

minnor losses (hl2) = k total*v2/(2g)= 10.97*(0.708^2)/(2*9.8)= m

Therefore, the total head losses can be calculate:hf1+hl1+hf2+hl2 = 0.24245+0.236+0.52633+0.281

= 1.3 mTotal Head

= 2+10.078+0+1.3= m

The pressure over the pipePi = ρ air tawar x Htotal (14)

= 1025*13.378

= kg/m2

=The pressure on the nozzlePz = 1 atm

= kg/cm2

Therefore, the maximum to be revised for the hydrophore tank is:Po = Pi+Pz

= 1.37+1.033

= kg/cm2

For the pump selection,Merk = SHINKO PUMP

0.03

0.52633

0.05

0.708

35400

13712.51.37

1.033

2.403

0.281

Hs+Hp+Hv+Hl13.378

Types

Strainertotal

SDNRV 1.231.5

Gate valve 0.15Buttterfly valve 0.86

Elbow 900 0.57T-joint 1.14

: 20 - 42 09 050 - DS: 0: Attachment No. 01

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SUPPLY SYSTEM

: DESIGN IV

10.97

1.230

0.90.86

nxk

1.146.84

k

Page 4 of 5


Type = AHJ 50-2Head = 15 m

Capacity = 5 m3/hPower = 2.2 kWRPM = 3600 RPMFrequency = 50 Hz


SUPPLY SYSTEM


Page 5 of 5


ATTACHMENT NO. 02 - HYDROPHORE AND PUMP SPECIFICATION

TECHNICAL SPECIFICATION OF DOMESTIC FW AND SW SUPPLY SYSTEM

book 20 [ds]

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