experience from the first newbuilding project with methanol as
TRANSCRIPT
POWERED BY METHANOL
DifferencewithME‐GI and ME‐LGI
From Idea to Reality
ME‐LGI Project Stake Holders
Main dimensionsMain dimensions
Loa…………………………. 186.0 m
LPP………………………….177.0 m
B………………………………32.2 m
Design Draught……………...11.6 m
Scantling Draught…………...12.6 m
Deadweight at design draught…………42 962 Metric ton
Deadweight at scantling draught………49 962 Metric ton
IMO 3
6 pairs of cargo tanks
1 Pair of slop tanks ( Dedicated Methanol fuel storage tanks)
6 Pair of ballast tanks
Main Engine:
The ships will be fitted with MAN ME‐LGI duel fuel engines which can run on methanol and conventional oil fuels.
DNV GL Rules for Low Flashpoint Liquid Fuelled Ship Installations and be the first to receive the class notation LFL FUELLED
Hyundai –B&W 6G50ME‐B9.3‐LGI(Tier II) MCR……………….. 7 580 Kw * 88.5 RPMNCR…………………6 443 Kw * 83.8 RPM
ME‐B LGI concept
Hyundai B&W 6G50ME‐B9.3‐LGI (Tier II)◦ Methanol fuel service tank with transfer system◦ Liquid fuel supply system (LFSS)◦ Fuel Valve Train (FVT)◦ Nitrogen purging and inerting◦ Cooling and sealing oil systems
Safety barriers◦ Inherently safe double wall piping◦ Alarms with shutdown and purging◦ Immediate switch to conventional fuel◦ Fire fighting on deck ◦ Fire fighting in ER
High pressure direct methanol injection using low pressure supply and hydraulic activation, through separate injectors, with conventional fuel pilot for ignition.
ME‐B LGI concept
Hydraulic supply
Methanol fuel booster injection valve (FBIV)
Valve block
Diesel fuel
ApprovalApproval in principle◦ Approval of the concept◦ HMD, MAN & Alfa Laval drawings◦ Not explicitly required
HAZID◦ Component failure modes and effects◦ Detailed◦ Required for Flag State Approval
Flag state approval◦ Based AiP & HAZID◦ Owner’s responsibility◦ Subject to final approval by Class
Class approval◦ Yard is formal customer◦ Owner’s out of the loop◦ Site office – site team
Approval in principlePurpose◦ Proof of concept◦ Identify show stoppers◦ Speed up development◦ Basis for Flag state approval
Documentation◦ General arrangement◦ MAN concept drawings and philosophy◦ Cargo and fuel piping◦ N2 and cargo vent system◦ Sealing oil system
Pending issues◦ Same level of detail as full class approval◦ No major show stoppers◦ N2 connections, dangerous zones, drain system etc.
HAZID
Scope◦ Cargo system & service tank◦ LFSS and FVT◦ Drain and purge◦ N2 system & ventilation system◦ External influences
Principle◦ What if?◦ Cause and effect◦ Criticality and control◦ Very detailed; each and every valve, pump etc.
92 items, no major show stoppers
Three high risk items◦ Ensure filter drains are fitted◦ Proper procedures for tank entry◦ Save all to control leakage from service tank drain pipe
“A Failure Mode and Effects Analysis (FMEA) is a qualitative reliability technique for systematically identifying and analysing failure modes and their consequential effect within a given system. A Criticality Analysis (CA) is a quantitative procedure which ranks failure modes according to their frequency of occurrence and consequences (i.e. their risk).”
Flag state approvalRequired for issuance of ship’s certificates
Based on DNV GL’s assessment
Scope◦ Methanol study◦ HAZID/FMECA◦ Drawings◦ DNV Rules◦ Approval in Principle
Submitted July 2014, approval gained October 2014
Modification of Fire Fighting System required◦ Foam to CO2◦ +50% total flooding capacity◦ +50% local capacity
Subject to final approval by class
Class approvalThe yard is DNV GL’s customer throughout the newbuilding process
Kept between yard and class
Currently ongoing
Only see outcome as notes in drawings on reason for revision
Informal relation between DNV GL site office and our site team
Required for final Flag state approval
Design Philosophy
Schematic Diagram of the ME‐LGI Engine
6G50ME‐B9,3‐LGI‐TII
Design Philosophy: General design decisions
Design philosophy‐ Gas SAFE engine room
FBIV and conventional fuel injector slide valve
Fuel Booster Injection Valve
FBIV‐M
LFSS (Liquid Fuel Supply System) Supply, Circulation & Control
LFSS Unit (Liquid Fuel Supply System)
The final barrier: Fuel valve train
The Additional Components on the engine
ME‐LGI: Additional components compared to a standard engine
LGI‐Components
A closer look! It will takemore than the usual 8 hrs to overhaulone piston.
Mari Jone printout voyage Korea‐Australia
Mari Jone printout voyage Korea‐Australia
Mari Jone printout voyage Korea‐Australia
Conclusions: Engine Performance
Any questions?