Adaptive Fuel Line - Alfa Laval · conditions of cat fines in HFO (380 cSt and 700 cSt) If you can...
Transcript of Adaptive Fuel Line - Alfa Laval · conditions of cat fines in HFO (380 cSt and 700 cSt) If you can...
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How to handle 2020 fuels on board?
Andrzej SmolenskiBU Marine Separation
Adaptive Fuel Line
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Onboard Fuel Oil Cleaning, the Ever Neglected Process.
How to Restrain increasing Cat Fine Damage in
Onboard Fuel Oil Cleaning, the Ever Neglected Process. How to Restrain increasing Cat Fine Damage in Two-stroke Engines
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Cat
fin
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0-5 15-2010-155-10 >3
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25-3020-25 Cat fines size (µm)
Seize of Embedded Cat Fines in liners:
• Most Cat Fines by number were found in the
range of 5 – 15 μm
• Since the oil film thickness between engine
parts goes down towards 1 μm, also
small Cat Fines contribute to wear
• Therefore, increased Separation Efficiency
and regular efficiency monitoring is necessary
Source: MAN D&T
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Certified Flow Rate (CFR)Separator performance validation
• Certified Flow Rate is defined as the flow
rate where the separation efficiency is
85%, 30 minutes after a discharge
• Test method uses Dino-spherical 5 µm
particles in synthetic oil to simulate
conditions of cat fines in HFO (380 cSt
and 700 cSt)
If you can separate
this particle
…you can also separate
this one
• It is proven and repeatable method to
evaluate and optimize separator
performance adopted by European
Committee for Standardization
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Project Guide
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CFR range of S9x8 separators
CFR is to provide customers a fair and objective way of comparing separators from different suppliers
Work initiated in CEN/TC 313 and CIMAC WG7 (Fuels) to develop a new CFR test standard, also taking care of 2020 fuels
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LP
HP
Particle flow pattern
Multiphase flow pattern
Pressure drop
Re-mixingFlow direction
Up
Down
Understandings the disc stack
Poorly design separator will not maintain good efficiency for the period
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Inside separator bowl
Liquid levels what determain interface between
Oil and Water
• Level of water
• Level of clean oil
• Level of dirty oil
In conventional purifier the correct size of
Gravity Disc is essential for efficient
separation
Gravity Disc
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S – separator ALCAP type
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ALCAP - adaptive separator
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OPEX
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S – separator minimized wear and tear
Slide 12
Centri Lock
Cetri Shoot
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PI
PS
PI PI
Mt50
System control
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• Complet system with heater, pump and
ancillaries
• Fast and easy installation
• Flexible configuration
• Fixed foot print and connections
• Tested at factory
Plug & Play installation
Standard Modules
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A conventional fuel system
Recirculation
Fuel feed to separator is independent from engine load
Large portion of oil recirculates during slow steaming
Recirculation adds to energy costs
The high flow rate leads to less efficient separation and an increased risk
of engine damage
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One Separator – Slow Steaming
Slide 16
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FlowSync
FlowSync is automatic feed pump control system
It adjusts the flow to separators to actual fuel consuption
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100% of design flow rate
Separation efficiency v/s flow
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By reducing the flow rate, the separation efficiency increases
50% of design flow rate
Separation efficiency v/s flow
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Slide 20
FT
Flow Transmitter
Controller
Pump
Rate
Engine
Load
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Multiple separators – One controller
FlowSync – Operating Principle
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One Separator – with FlowSync
Slide 21
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Feed
pumps
Pre-
heater
VFD AL
control
Developing the future
- Increased separation performance
- Reduced energy consumption
- On-line measurement
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SummaryAlfa Laval Separation, link to 2020 Fuels
CFR certified HSS
FlowSync to optimize performance
Superior bowl design
ALCAP System to handle viscosity variations
Slide 23
Cat Fine
Issues
Engine Protection
More fuel
variations
Fuel Flexibility
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Alfa Laval Adaptive Fuel Line– be a step ahead
Thank you for attention