A steady flow of savings
The AQUA fresh water generator
Literature code: EMD00197 0901
Content
Freshwater generator application
AQUA. The leading technology
The solution
A steady flow of savings
Field installation
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Fresh water generator
Application
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Water is life
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Application
Water quality
Sea water 20000 35000 ppm
Tap water, typical City water 250 300 ppm
Mineral water bottled 105 ppm
Freshwater generator 0,5 2 ppm
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Application
Water is essential onboard
Technical uses:
Boiler make-up
Cleaning
Heating
Cooling
Tank cleaning
Separation operation
NOx reduction
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Application
Water is essential onboard
Domestic uses:
Drinking
Cooking
Showering
Laundry
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Application
Quality of bunker water
Water quality:
Varies between 100 and
600 ppm
Poor quality water means:
Rapid scale formation in
boilers, separators,
heaters, etc.
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Application
Price of bunker water
Estimated development in average price/ton of bunker
water
25
20
USD/ton
15
10
5
0
2000 2005 2010 2015
Year
In 2012, cost of 20 m3/day bunker water will be upto USD 57,200.-/ Year
Based on: 220 days in service, 4400 m 3, 13 $/ m3
Source: Port autorities in USA, India, Dubai, Greece, China, South Africa, Singapore, Germany, Norway.
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Application
Alfa Laval water production/day
More than 15.000 Freshwater generators in service
360.000.000 l /day
1,4 million households
5,6 million people
0,1% of the world population
41%
59%
Based on ships over 2000dwt Alfa Laval
Other solutions
Alfa Laval: Nirex, Atlas
Other solutions: Bunker Water, Competing Products
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Application
AQUA
The leading technology
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History of
Alfa Laval freshwater generators
1954 Ship Owner Lauritzen invented the tube-FWG with Niro Atomizer
1954 Atlas started the production of the tube-FWG(owned by Lauritzen)
1956 Niro Atomizer invented and started the production of the plate FWG
1968 Alfa Laval acquired Nirex Engineering
1984 Nirex designed the JWP 26
1987 Alfa Laval merged with Atlas (New Name Desalt)
1992 Production stopped of the Atlas Freshwater Generator
1995 ISO 9001 Approved
1997 Alfa Laval designed the MEP (Multi Effect Plate)
2000 Alfa Laval produces only plate units (DTU is phased out)
2008 Alfa Laval design & launch AQUA
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The leading technology
Experience from Alfa Laval Shell & Tube and
traditional plate technology
Leading Fresh water generator
supplier, worldwide network and
support
More than 30 years of
onboard experience
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The leading technology
Process development
Water
quality
Process
1955 1960 1970 1984 1990 2000 2008 control
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The leading technology
The solution
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The solution
The solution
Working principal
Equipment technology
Maintenance
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The solution
Desalination process
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The solution working principal
AQUA in function
Alfa Laval Slide 19 www.alfalaval.com
The solution working principal
Less seawater high impact
the seawater flow
the pumping energy
the fuel for electric
power generation
the CO2 emission
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The leading technology
Doing the job with less
Process plate Utility plate
Condenser
Separator
Evaporator
Traditional plate
3-in-1 plate technology
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The leading technology
Working principle
1. Ready for operation
Slide 22 www.alfalaval.com
The solution working principal
Working principle
1. Ready for operation
2. Sea water, cooling, vacuum and feed
Alfa Laval Slide 23 www.alfalaval.com
The solution working principal
AQUA process
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The solution working principal
AQUA process
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The solution working principal
The solution
Equipment technology
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Material utilized
Less work and worry
Steel Aluminium
Cast Iron
Cupper /
nickel
Red brass Titanium
Cast Iron
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The solution equipment technology
AQUA instrumentation
Control panel
Pressure gauge &
Thermometer
(Sea water)
Water clock
Freshwater MV-
Valve
Pressure gauge
Freshwater)
Freshwater control
valve with electrode
unit
Feedwater MV-Valve Vacuum gauge,
Thermometer
(Boiling temperature)
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The solution equipment technology
AQUA 125: 200 plates, Max. 60 m3/24h
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The solution equipment technology
Position plate indicator and distance pipe
Less work and worry Distance pipe
Easy plate assembly
Service access at
the front
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The solution equipment technology
The solution
Maintenance
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AQUA pressure limits
Max. Back pressure
0.7 3.0 bar
Max. Inlet pressure on
condednser: 5.0 bar
Max. Inlet pressure at
Evaporator: 4.3 bar
Max. Back Min. Inlet pressure
pressure 0.6 bar bar 3 bar
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The solution - maintenance
Scale, chemical treatment
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The solution - maintenance
Alfa Laval
Shell & tube and plate technology
Similar evaporation process
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The solution - maintenance
Scale, chemical cleaning
Before
Scale in a Freshwater
generator is similar to
scale in an El-boiler
Cleaning
After CIP acid cleaning
small deposits may
remain
After
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The solution - maintenance
Maintenance, cleaning 100% clean after
de-scaling
Open plate stack or CIP cleaning
- AQUA allow both opportunities Longer de-scaling
FWG performance intervals
100%
Clean-percentage
after de-scaling
Shorter de-scaling
Time
intervals
Open for absolute cleaning CIP cleaning in place
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The solution - maintenance
De-scaling
Plate heat exchanger
Fouling and soft
scale
After cleaning
in safe acid
bath Hard scale is easy
removed on an
open surface
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The solution - maintenance
Anti scalant Fresh water
Preventing scale formation
Dosing
pump
Correct anti Altreat 400
scalant dosing Anti scalant
dosing tank
Prolong the 120 l/24h
cleaning
intervals
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The solution - maintenance
Anti scalant
Efficient, Scale inhibiting polycarbxylic acid
Salt
H H Inhibit the dissolved salts from
particle
O precipating, settling and baking
onto surfaces
H H In addition changing a crystal
O structure to take form as a soft
O
sludge that does not bake onto
H H
surfaces
O
H H
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The solution - maintenance
Anti scalant Altreat 400
Features
Highly concentrated liquid
Based on polymaleic acid
Highly effective
No transport restrictions
Certified for drinking water by NSF and Kiwa
Available in 25 l cans and 200 l drums
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The solution - maintenance
Approval Kiwa
Approval for food & drug industry
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The solution - maintenance
A steady flow of savings
Energy
Environment
Economy
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AQUA freshwater generator
..and the other half
Easy operation and maintenance
AQUA offer start and forget operation.
Maintenance intervals are long due to optimized
distribution on the plates. Plate pack slides open
for easy access to the interior
Long product lifetime
High grade materials that resist corrosion and
erosion. AQUA will last as long as the life time of
the ship
Low-salinity water
The fresh water supplied by AQUA has lower
content of salt and other dissolved solids than
supplied by other freshwater generators
Continuous quality control
The salinometer-equipped control system
continuously monitors the quality of the outgoing
freshwater. During start-up and stop of unit the
freshwater is returned back to the brine outlet pipe
instead of to the bilge.
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A steady flow of savings
AQUA freshwater generator
The full story
Local support
Alfa Laval subsidiaries in more than 70 countries
provide support on a locally basis.
Global Service
With a global network of highly skilled field service
engineers, Alfa Laval is ready to support you with
sound professional advice.
You can call 24/7 for technical assistance and spare
parts supply.
Customer made training programs
Staff training can be arranged in any location and for
any duration.
3D drawings
Drawing support in 3D is available for supporting
shipyards with installation.
To optimize the performance of our customers processes.
Time and time again
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A steady flow of savings
Electric power consumption
Calculation Based on: 5000 Working Hours/year, 0,20 per kWh. Source: Marketing survey
performed in July 2008 by FKAB
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A steady flow of savings
Electric power consumption
Calculation Based on: 5000 Working Hours/year, 0,20 per kWh. Source: Marketing survey
performed in July 2008 by FKAB
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A steady flow of savings
Reduction in environmental
figures
Calculation Based on: 5000 Working Hours/year, CO2 0,5 kg, NOx 0,012 kg and SOx 0,010 kg per kWh.
Source: Marketing survey performed in July 2008 by FKAB
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A steady flow of savings
Environmental figures
Calculation Based on: 5000 Working Hours/year, CO2 0,5 kg, NOx 0,012 kg and SOx 0,010 kg per kWh.
Source: Marketing survey performed in July 2008 by FKAB
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A steady flow of savings
Installation of AQUA
Source: Marketing survey performed in July 2008 by FKAB
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A steady flow of savings
Cost of installation
Source: Marketing survey performed in July 2008 by FKAB
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A steady flow of savings
Footprint
Compactness
Freshwater Capacity: 20 m3/24h
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A steady flow of savings
Footprint
Compactness
Freshwater Capacity: 40 m3/24h
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A steady flow of savings
AQUA
Field installation
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Field installation
First test vessel
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Field installation
Tested on power station
Svanemllen Power Station, Copenhagen, Denmark
Test has been carried out since 2004.
Hooked up to the steam system in the power station
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Field installation
Proven technology
2003 - 2004 : Laboratory tests in Alfa Laval
2004 - 2008: Svanemllen Power Station - Denmark
2006 - : AXEL MRSK, owner A.P. Mller - Denmark
2008 - : STAR ALTANGER, Owner Master Bulk - Singapore
2008 - : STAR LEIKANGER, Owner Master Bulk - Singapore
2008 - : ISOLDE, Owner Wallenius Sweden
2009 - : many more to come..
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Field installation
First field test installation
AQUA installed and in
operation since August 2006
Type: AQUA-100 with fresh
water capacity of 36
m3/24hrs
Existing installation DPU36
Tests carried out onboard
Thermal test
Process test
Distribution test
Scaling test
Roll & Pitch test
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Field installation
Test conducted
Following tests have been carried out in
Svanemllen Power Station:
Thermal tests
Temperature variations
Energy consumption
Process tests
Volumes on flow
Distribution tests
Flow directions over the plate
Feed-water flow
Separation techniques
Scaling tests
Boarder line tests
Roll & Pitch tests
Roll & pitch test carried out on a test bed
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Field installation
Process of development
Basic idea 2002 First draft 2003 Basic test unit 2003
First AQUA unit 2004
Final design 2008 1th. & 2nd. design draft 2006
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STAR ALTANGER
Shipowner: Master Bulk - Singapore
Type: AQUA-80 with fresh water capacity of 20 m3/24hrs
Installation during 2008.
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Field installation
STAR LEIKANGER
Shipowner: Master Bulk - Singapore
AQUA-80 with fresh water capacity of 25 m3/24hrs
Installation during 2008.
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Field installation
ISOLDE
Shipowner: Wallenius - Sweden
AQUA-100 with fresh water capacity of 35 m3/24hrs
Installation during 2008.
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Field installation
Satisfied customer
Translation of email:
..hope you have good sale of the new FWG, in any
case we are very satisfied with the performance..
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Field installation
Total life cycle cost
Calculation Based on: 5000 Working Hours/year, 0,20 per kWh. Source: Marketing survey
performed in July 2008 by FKAB
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The Leading Technology - Summary
