advanced fuel filtration system vs. navy shipboard ... fuel filtration system from fsi.pdfshipboard...
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![Page 1: Advanced Fuel Filtration System vs. Navy Shipboard ... Fuel Filtration System from FSI.pdfshipboard centrifugal purifier, which processes the marine diesel fuel (DFM) from the storage](https://reader031.vdocuments.us/reader031/viewer/2022040409/5ec6afba0197281b667cc9a9/html5/thumbnails/1.jpg)
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Advanced Fuel Filtration System
vs.
Navy Shipboard Centrifugal Purifier
(tested onboard DDG 51 class ships)
Company Proprietary Information, Do Not Circulate Without FSI’s Permission
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2
A 90 GPM Advanced Fuel Filtration System (AFFS) was
developed by FSI for the replacement of the Navy
shipboard centrifugal purifier, which processes the marine
diesel fuel (DFM) from the storage tank before being fed
into the service tank.
A side-by-side comparison, the AFFS replaced the #1 FO
PUR (centrifugal purifier) and running in parallel to the
existing #2 FO PUR (centrifugal purifier), was performed
onboard a DDG during a seven-month deployment for
performance and operation evaluation.
Besides the daily fuel sampling from both units, a long term
effect can also be observed through the replacement of
downstream polisher filter set (service filters), i.e. a better
fuel purifier would provide higher quality of processed fuel
and thus would require less replacement of service filters.
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A 90 GPM Fuel Filtration System
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Installation Onboard a DDG
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55
Fuel Quality Comparison between
Centrifugal Purifier and AFFS
Polisher Filter
Set Replacement
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Shipboard Test Results –
Service Filter Replacement Comparison
Service System Filter Replacement
0
2
1
2 2 2
0
1
4
3 3 3
15
1
0
2
4
6
8
10
12
14
16
Nov-04 Dec-04 Jan/Feb-05 Mar-05 Apr-05 May-05 Jun-05
Month
Nu
mb
er
of
Filte
r S
et
Rep
laced
Unit 1, from FSI filter
Unit 2, from Centrifugal Purifier
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Accumulated Processed Fuel for Cartridge Set #3
0
100
200
300
400
500
600
700
800
900
1000
0 20 40 60 80 100 120 140 160
Number of Transfers
Ga
llo
ns
(T
ho
us
an
ds
)
Note: AFFS filter cartridge set installed on 9 Feb 05, data per 1 Jul 05
Shipboard Test Results – Filter Service Life
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Proof of Performance
Fuel Quality Measured*: Water Content < 3 PPM Sediment < 0.26 mg/l
* Fuel filtered from test fuel with 5% water and 100 mg/l test dust
One Single Pass!
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Centrifugal Purifier vs. AFFS
Description Centrifugal Purifier FSI's Fuel Filtration Unit
Equipment Cost High ~1/2 Centrifugal Purifier Cost
Energy Cost High
(Driven by a 40 HP motor, @4500 RPM
for continuous recirculation)
~1/10 of Centrifugal Purifier Cost
(Stationary equipment,
single pass process
Maintenance & Operation Cost High ~1/4 Centrifugal Purifier Cost
Installation Cost High ~1/2 Centrifugal Purifier Cost
Water & Lube Oil SuppliesRequired
(Piping, Fittings, Valves)Not Required
Processed Fuel Quality
Low
(Debris Content: ~4mg/L,
Particle Size: >> 5 µm, Water: ~30 ppm)
High
(Debris Cont.: <2.64mg/L,
Particle Size: < 5 µm, Water: <10 ppm)
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Centrifugal Purifier vs. AFFS (continued)
Description Centrifugal Purifier FSI's Fuel Filtration Unit
Logistics Support Requirements
Many
(126 spare part items,
17 special tools required)
Few
(36 spare part items,
no special tools required)
Reliability (based on Navy Casreps)Low
(fuel spills through "breakover")
High
(no "breakover" situation)
Shipboard Arrangement
Rigid
(closed coupled, alignment
and balance sensitive)
Flexible
Noise and Vibration High
Low
(Operational/tactical
acoustic signature eliminated)
Weight & Dimensions Large Small
(~1/2 Weight of Centrifugal Purifier)
HAZMAT (based on deployment data)
Much
(30 sets polisher filters consumed
under 7 month deploymnet)
Little
(9 sets polisher filters consumed under
7 month deploymnet)
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AFFS Key Technologies
Cross-flow filtration
Dean Flow*
Back-flushing
Hydrophobic membrane*
* Proprietary from FSI
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Conventional vs. Cross-Flow Filtration
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Anatomy of an Innovative Solution
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Dean Flow: What A Difference!
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Hydrophobic Membrane