Experience from the first newbuilding project with methanol as ...

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POWERED BY METHANOL

Transcript of Experience from the first newbuilding project with methanol as ...

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POWERED BY METHANOL

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DifferencewithME‐GI and ME‐LGI

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From Idea to Reality

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ME‐LGI Project Stake Holders

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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

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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.

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ME‐B LGI concept

Hydraulic supply

Methanol fuel booster injection valve (FBIV)

Valve block

Diesel fuel

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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

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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.

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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).”

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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

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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

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Design Philosophy

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Schematic Diagram of the ME‐LGI Engine

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6G50ME‐B9,3‐LGI‐TII

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Design Philosophy: General design decisions

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Design philosophy‐ Gas SAFE engine room

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FBIV and conventional fuel injector slide valve

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Fuel Booster Injection Valve

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FBIV‐M

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LFSS (Liquid Fuel Supply System) Supply, Circulation & Control

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LFSS Unit (Liquid Fuel Supply System)

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The final barrier: Fuel valve train

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The Additional Components on the engine

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ME‐LGI: Additional components compared to a standard engine

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LGI‐Components

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A closer look! It will takemore than the usual 8 hrs to overhaulone piston.

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Mari Jone printout voyage Korea‐Australia

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Mari Jone printout voyage Korea‐Australia

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Mari Jone printout voyage Korea‐Australia

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Conclusions: Engine Performance

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Any questions?