双燃料集装箱船设计方案

Glutra (car & passenger ferry) Viking Energy (platform supply vessel) (+ 1 sister ships) BergensFjord (car & passenger ferry) (+ 4 sister ships) Kystvakt (coast guard ship) (+ 2 sister ships) Moldefjord (car & passenger ferry) (+ 2 sister ships) Viking Queen (platform supply vessel) (+ 1 sister ships)
CIMAC 2011
Background
Emission Regulations
• NOx Regulation by IMO (MARPOL Annex VI, Regulation 13)
Tier I II III g/kWh (RPM<130) 17.0 14.4 3.4
Sulfur limit, %
• Constant speed (RPM) designed
• DF Engine Emission Comparison. (Ref. “Wartsila 50DF Project Guide”)
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DSME Proprietary
CIMAC 2011
CONTENTS
INTRODUCTION
DUAL FUEL ENGINES LNG FUEL STORAGE TANKS FUEL GAS SUPPLY SYSTEM LNG BUNKERING SAFETY ISSUES
• Independent LNG Fuel
Tank Example (ACT-IB)
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DSME Proprietary
CIMAC 2011
Membrane Tank
IGF interim guideline is expected to amended to allow membrane tank for LNG fueled ships GTT NO 96 system
CONTENTS
INTRODUCTION
DUAL FUEL ENGINES LNG FUEL STORAGE TANKS FUEL GAS SUPPLY SYSTEM LNG BUNKERING SAFETY ISSUES
LNG FUELED SHIPS
CONCLUSIONS
2
DSME Proprietary
Result of sloshing in 2 row arrangement of NO 96 CCS
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CIMAC 2011
Tank Type Comparison – Owner’s Choice
Comparison between GTT NO 96 and DSME ACT-IB GTT NO 96
Propulsion
FGS
Fuel Tank Type BOG Management Fuel Tank Arrangement Bunkering
Type C Pressure Vessel
New Concept Fuel Tank
Not Critical Complying with B/5 distance from side hull Not Critical
• ME-GI Engine
• Emission Comparison between ME and ME-GI in gas mode
(Refer to “ME-GI Dual Fuel MAN B&W Engines”. Graph by DSME)
• Variable Gas Operation Mode of ME-GI
DSME Proprietary
8
CIMAC 2011
Generator Engine: 4-Stroke Gas / Dual Fuel Engine
Gas / Dual Fuel Generator Engine • 4-stroke, medium speed gas or DF engine • Oil mode (HFO or MDO, DF engine only) or Gas mode (NG + 1% MDO pilot oil) • SOx, NOx emission is negligible • Working gas pressure : 5 ~ 8 bar
LNG FUELED SHIPS
CONCLUSIONS
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CIMAC 2011
Propulsion Engine: 2-Stroke Dual Fuel Engine
ME-GI Engine (MAN Electronic – Gas Injection) • • • • • 2-stroke dual fuel engine made by MAN Diesel Highest efficiency among existing propulsion systems Simultaneous Dual Burning (HFO + FG) Low CAPEX & OPEX compared to other dual fuel engines CO2, NOx, SOx emission reduction
LNG (2 x 32m3)
2000
LNG (1 x 234m3)
2003
LNG (2 x 125m3)
2007
LNG (1 x 来自百度文库34m3)
2009
LNG (2 x 125m3)
2009
LNG (1 x 234m3)
2009
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DSME Proprietary
CIMAC 2011
For Large Ships
Membrane
Limited (Integrated in hull) < 0.25 barg (max 0.7) Yes 530 mm (Internal insulation) Invar (36% Ni-Fe) + Plywood with Perlite -
Weight
Sloshing for partial filling License Experience Two row arrangement and Baffle structure GTT Over 70 of LNGC/RV
LNG Fueled Propulsion System for Large Commercial Ships
High Pressure NG*
LNG + BOG*
Fuel Gas Supply System
ME-GI* Engine
*NG : Natural Gas *ME-GI : MAN Electronic – Gas Injection *BOG : Boil-Off Gas
• SOx Regulation by IMO (MARPOL Annex VI, Regulation 14)
4.5 IMO(global) 3.5
Construction date on or after 1 January 2000 1 January 2011 1 January 2016
1.5
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CIMAC 2011
Global LNG Fueled Ships (small size)
Vessel A few small ships with CNG Storage CNG (Compressed Natural Gas) Year 1982 ~ 1990s
LNG FUELED SHIPS
CONCLUSIONS
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CIMAC 2011
ACT-IB Storage Tank – IMO Independent Type B
ACT-IB Storage Tank (Aluminum Cargo Tank – IMO Independent type B) • Independent LNG tank • PUF(Poly-Urethane Foam) panel type insulation • Inherent increased pressure design (typically 0.7 bar gauge)
Primary membrane Primary insulation material Secondary membrane Secondary insulation material Insulation thickness Insulation tightening Note 0.7 mm Invar (36% Ni-Fe) Plywood with Perlite 0.7 mm Invar (36% Ni-Fe) Plywood with Perlite 530 mm (230 + 300) Securing device set Anti-sticking treatment between secondary insulation box with hull Internal view of NO96 CCS DSME LNG FPSO applied 2 row LNG tank (NO 96 CCS)
CCS type
Shape of tank Pressure 2nd barrier Insulation thickness Material Support & chock
ACT-IB
Independent type B
Free (Prismatic) < 0.7 barg Partly (Drip tray) 270 mm (External insulation) Aluminum + Poly Urethane Form Exist
LNG Fuel Storage Tank
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DSME Proprietary
CIMAC 2011
CONTENTS
INTRODUCTION
DUAL FUEL ENGINES LNG FUEL STORAGE TANKS FUEL GAS SUPPLY SYSTEM LNG BUNKERING SAFETY ISSUES
1.0 0.5 0.1 USCG
IMO(ECA) EU Port 2010 2011 2012 2013 2014 2015 2016 Year 2017 2018 2019 2020 2021
Fuel Price
• Recent Gas & Ship Fuel Price (06 May. 2011)
Fuel HFO (IFO380) @ Singapore Price
• Gas & Ship Fuel Price (Jan. 2006 ~ Apr. 2010)
($/ton)
($/MMBTU)
624 941 218
16.2 24.5 4.6
MGO @ Singapore
NG @ Henry Hub
Large ship requires totally different technologies to utilize LNG as its fuel.
Small Ships 4 Stoke Gas or D/F Engine & Electric Propulsion LNG/NG Supply by Tank Pressure Large Ships 2 Stoke D/F Engine & Mechanical Propulsion New Concept FGS Consideration Large Propulsion Power (Bore 90 or 98) High GI Pressure Huge Tank Volume CAPEX, Volume Efficiency MARVS
Careful Attention
Difficult to meet B/5
Cargo Loss, Collision Tank Volume & Operation Schedule
Critical in Method & Time
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CIMAC 2011
LNG Fueled Propulsion System