Ship Machinery and Equipment Maintenance Lloyds maritime Academy 28/29 Jan 2010 Dr M Raouf Kattan...

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Ship Machinery and Equipment Maintenance Lloyds maritime Academy 28/29 Jan 2010 Dr M Raouf Kattan Managing Director Safinah Ltd www.safinah.co.uk Hull, Tank and ballast tank maintenance 1 Lloyds maritime Academy 28/29 Feb 2010 © Safinah Ltd 2010

Transcript of Ship Machinery and Equipment Maintenance Lloyds maritime Academy 28/29 Jan 2010 Dr M Raouf Kattan...

Page 1: Ship Machinery and Equipment Maintenance Lloyds maritime Academy 28/29 Jan 2010 Dr M Raouf Kattan Managing Director Safinah Ltd  Hull,

Ship Machinery and Equipment Maintenance

Lloyds maritime Academy 28/29 Jan 2010

Dr M Raouf Kattan

Managing Director

Safinah Ltd

www.safinah.co.uk

Hull, Tank and ballast tank maintenance

Lloyds maritime Academy 28/29 Feb 2010 © Safinah Ltd 2010

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Coatings

Are they just paint?

or

Are they engineering systems?

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Sign post

Impact of IMO Regulations– Ballast tank issues– Cargo tank issues– Outer hull issues

In service monitoring

Maintenance regimes

Repair regimes

Data collection

Possible issues

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Impact of IMO Regulations

IMO PSPC for dedicated seawater ballast tanks– Has elevated the focus on coating

performance

Fuel prices – Has elevated the focus on outer hull

condition

IMO PSPC for Cargo tanks pendingLloyds maritime Academy 28/29 Feb 2010 © Safinah Ltd 2010

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IMO Regulations

Treaty on Ballast water management systems

IMO Guidelines for Maintenance and Repair (M&R) of ballast tank coatings (void spaces and PMA)

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Ballast tanks

The worst is yet to come– New build CTF requirements– Compatibility with BWMS– Distinction between Maintenance and

Repair– IMO Guidelines for M&R of ballast tank

coatings

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Ballast tanks

As built records required – CTF

In service monitoring by IACS likely to take the following format:

3.4.3 IMO PSPC – In service maintenance, repair and partial

re-coating shall be recorded in the CTF in accordance with the GUIDELINES for coating maintenance and repair

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Maintenance and Repair

Clear Distinction– Maintenance – activity that maintains but

does not improve condition– Repair – activity that improves conditions– Basis is IACS Rec 87.

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Assessment

How to assess condition– Who to do it– How to define areas under consideration– Ambiguities of area of breakdown

How to record

How to audit

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Frequency

Every 5 years all tanks

Fair and Poor – annually

Poor, Fair Good as defined in IMO A.744(18).– Plate: <3% (minor spot rusting), <20%,

>20%– Edges: <20%, 20-50%, >50%

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Good

Photo Courtesy of ClassNK

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Fair

Photo Courtesy of ClassNK

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Poor

Photo Courtesy of ClassNK

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Maintenance Regimes

Need good information– All vessels over 6 years of age inspect all

tanks by crew annually (possibly earlier).– Provide a report of condition– Prepare a maintenance plan– Prepare a repair plan– Record findings and actions in CTF

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Maintenance regime

Prepare– Remove mud, oil, grease etc., Wash down,

Dry, Mech prep. Climate

Apply– Epoxy based, compatible to existing (cross

testing?). DFT to specification!!!

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Repair regimes

At dry-docking or specialist location– Status of riding squads not yet fully clear,

but current reading is that this would be maintenance.

Use of specialised equipment

Prepare a proper plan of action

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Repair regime

Preparation– Remove mud, oil, grease etc. FW wash,

Dry, St2 or Sa2.5 for Fair, Sa2.5 for Poor. Feather coating, soluble salts, climate control.

Application– According to IMO PSPC to required DFT

(compatibility – cross testing!!)

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Data Collection

Newbuild CTF – Contents not yet fully agreed and expect variability (IMO/NACE/IACS proposals).

Crew to keep records in a consistent format for maintenance and for auditing

Keep repair records for auditing

Computer based systems in the near future.

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Possible issues

BWMS compatibility is a big unknown at present, no one making any real claims.

Ownership changes and hence coating supplier changes – compatibility issues

Maintenance logs.

Costs of through life maintenance and repair

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Possible solutions

Data build up for coating life to allow proper planned maintenance to be developed.

Electronic CTF e.g. Elcoship software

New repair and maintenance strategies - outsourcing

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Outer hull

Direct relationship to fuel consumption

Longer history of owner interest

Computer based tools emerged onto market

Raising need for regular maintenance to save fuel.

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However

Invasive species issues– Require new technology solutions– In water hull cleaning desirable but can

result in invasive species issues.– If not acceptable then need more dry-

docking

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However

Coating technology– 30 years of TBT stability gone– New Tin free products have had variable

performance but has now improved– Foul release coatings, similar experiences – Conditioning coatings require in water hull

cleaning

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Assessment of hull performance

This is a complex process

Software available and services offered.

Daily fuel consumption is probably adequate and a moving average acceptable

May not be as sensitive as computer tools.

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Cargo Oil Tanks

Likely follow a similar pattern to WBT

Draft regulation draws heavily on WBT regulations.

Testing awaiting confirmation

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Future

More inspection and verification– More cost on coatings– More repairs

Need to get better through life data on coating performance

Other regulatory changes may prevent long coating life

Current regulations may inhibit innovation.

Vessel design

Novel maintenance contracts through life

Link new build budget to operational budget

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Projects looking forward

BESST - Process

BEKAS – Edge preparation

Safinah KTP - Design

Equivalent/alternative schemes under IMO PSPC – Japan/Holland/Brazil

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Conclusions

Will need to develop proper maintenance regimes.

Regulatory push will increase through life costs initially

Need to revise how specified

Need records

Need to re-consider design

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Conclusions

Going to get much worse before it gets better.

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Thank you

Any question