1< >MAN Diesel & Turbo Author Current topic 00.00.2012
ME-GI Fuel Gas Supply
GO BU-L Seminar
26th February 2013
2< >MAN Diesel & Turbo Author Current topic 00.00.2012< 2 >
Comparison of FGS System
Title
FGS system Reliquifaction capability Expected Application
1. Cryo pump Separate BOG handling required
All vessels except LNG Carrier
2. Cryo pump & reliq 100% LNG Carrier
3. Compressor Separate BOG handling required OR
LNG Carrier
15-25% of LNG flow to ME with basic partial reliq system possible OR
LNG Carrier
Up to 100% reliq possible with cascade or brayton cycle
3< >MAN Diesel & Turbo Author Current topic 00.00.20123
ME-GI FGS Specification
General Data for Gas Delivery Condition:
Pressure:Nominal at 100% load 300 barMax. value for design 315 barSet point tolerance (dynamic) ± 5%Set point tolerance (static) ± 1%
Temperature:45oC ± 10 oC
Quality:Condensate free, without oil/water droplets or mist, similar to thePNEUROP recommendation 6611‘Air Turbines’
Control of Gas Delivery Pressure
0% 20% 40% 60% 80% 100%0
50
100
150
200
250
300
350
Gas supply pressure set point range
Engine load (%SMCR)
Gas
su
pp
ly p
ress
ure
set
po
int
(bar
)
Adobe Acrobat Document
4< >MAN Diesel & Turbo Author Current topic 00.00.2012
Cryostar LNG Pump System
HamworthyLNG Tank & Pump System
TGE LNG Tank & Pump System
DSMELNG Tank & Pump System
Burckhardt CompressionLaby-GI Compressor
MHILNG Tank & Pump System
ME-GI7 FGS System Suppliers
HHILNG Tank & Pump System
5< >MAN Diesel & Turbo Author Current topic 00.00.2012< 5 >
Comparison of FGS System
Title
FGS system Reliquifaction capability Expected Application
1. Cryo pump Separate BOG handling required
All vessels except LNG Carrier
6< >MAN Diesel & Turbo Author Current topic 00.00.2012< 6 >
1. High Pressure Cryogenic Pump
Approx 0.5% of main engine power required for electrical power Requires glycol water system for heating LNG in vaporiser , and steam
consumption
7< >MAN Diesel & Turbo Author Current topic 00.00.2012
DSMEHP Pump FGS for Diesel Research Centre
8< >MAN Diesel & Turbo Author Current topic 00.00.2012< 8 >
HHIHiGAS for 7S80ME-C8.2-GI at test bed
Title
Prototype Hi-GAS
9< >MAN Diesel & Turbo Author Current topic 00.00.2012< 9 >
MHIDeveloped for MHI HP DF engine
Title
10< >MAN Diesel & Turbo Author Current topic 00.00.2012< 10 >
CryostarHP Pump & Vaporiser
Title
High-pressure pump HPP3 60/110 Triplex
11< >MAN Diesel & Turbo Author Current topic 00.00.2012
FGS from TGETwo-stroke Main Engine and DF GenSets
< 11 >
12< >MAN Diesel & Turbo Author Current topic 00.00.2012< 12 >
Energy Consumption
Title
Power = flow x pressure / efficiency 66MW example:
Gas fuel cons. Kg/h
FGS est. electrical requirement (kWe)
9333 3678792 3468250 3247750 3057250 2856750 2656292 247…. ….
13< >MAN Diesel & Turbo Author Current topic 00.00.2012MFA/LEE4 2012.11.12
37680 14280 10680 43500
100
200
300
400
500
600
700
Supplyer 1
supplyer 2
supplyer 3
Installed power [KW]
$/kW
CAPEX – FGS Quotations
14< >MAN Diesel & Turbo Author Current topic 00.00.2012< 14 >
Comparison of FGS System
Title
FGS system Reliquifaction capability Expected Application
1. Cryo pump Separate BOG handling required
All vessels except LNG Carrier
2. Cryo pump & reliq 100% LNG Carrier
3. Compressor Separate BOG handling required OR
LNG Carrier
15-25% of LNG flow to ME with basic partial reliq system possible OR
LNG Carrier
Up to 100% reliq possible with cascade or brayton cycle
15< >MAN Diesel & Turbo Author Current topic 00.00.2012
•ME-GI can be applied with: 100% reliquefaction system, partial reliquefaction system, no reliquefaction system at all
• Selection of a reliquefaction system is typically dependent on vessel requirements with regards to:
Sailing profile Proportion of time with HFO or Gas operation Amount of BOG produced from cargo tanks Value of BOG and/or LNG
…and not a requirement of ME-GI
BOG handling on LNG Carrier with ME-GI
16< >MAN Diesel & Turbo Author Current topic 00.00.2012
2. HP Pump Solution with 100% reliquefaction
17< >MAN Diesel & Turbo Author Current topic 00.00.2012
3. High Pressure Compressorwithout reliquefaction
18< >MAN Diesel & Turbo Author Current topic 00.00.2012
Combining LNG BOG and high pressure process compression technology
Optimal selection of compressor sealing system
Fully balanced, single casing, slow speed vertical frame design
Gas-tight compressor casing
Burckhardt Laby®-GIFuel Gas Compressor Type 6LP250-5S
Labyrinth1st stage
Ring sealed4th to 5th stage
Labyrinth1st to 3rd stage
Balancing weights
Laby®-GI
< 18 >
19< >MAN Diesel & Turbo Author Current topic 00.00.2012
HP Compressor Solution with partial reliquefaction
20< >MAN Diesel & Turbo Author Current topic 00.00.2012Title <
20 >
HP Compressor Solution with reliquefaction
LNG
ME-GIBOG
Stage 1-2 Stage 3-5
Nitrogen loop
Laby®-GI
VENT
Expander
Stage 1-3
Cascade Process from TGE• Ethylen & Propylen cycles
Brayton Process • Nitrogen cycle
21< >MAN Diesel & Turbo Author Current topic 00.00.2012
LNG Carrier FGS solutions
HP Compressor only
HP Compressor with partial reliq (30% maX)
HP Compressor with partial reliq (40%)
HP Compressor with full reliq
HP Pump with reliq system
Power at 100% M/E load (kW)
955 2540 3300 ? 2000
First cost(USD)
7.6M 10M 13.2M ? 15.5M
Includes 100% redundancy in all cases
22< >MAN Diesel & Turbo Author Current topic 00.00.2012
HP compressor and HP pump with partial reliquefaction
23< >MAN Diesel & Turbo Author Current topic 00.00.2012
All data provided in this document is non-binding. This data serves informational purposes only and is
especially not guaranteed in any way. Depending on the subsequent specific individual projects, the relevant
data may be subject to changes and will be assessed and determined individually for each project. This will depend
on the particular characteristics of each individual project, especially specific site and operational conditions.
Thank You for Your Attention !
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