CLASSNK’S

EXPERIENCE WITH

BWMS

RETROFITTING

ClassNK Principal Research Scientist Shinichi Hanayama

Day 2 - Wednesday, 28 September 2016

Session Ratification in 3… 2… 1… 0.5… 0.25…

BWMTech North America

BackgroundsBWMS retro-fitting is important for the smooth implementation of BWM Convention (BWMC) just after September 2017.

A significant demand for retrofitting from 2017 to 2021 is expected.

For the smooth implementation, not only the production capacity of BWMSs but also design/yard/survey capacity for retro-fitting should be needed.

This is our first challenge !! Efforts by all stakeholders will beneeded.

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MEPC 69 approved draft amendments to regulation B-3 of the BWMC, and a draft MEPC resolution on Determination of the date.

The draft MEPC resolution recommends that existing ships, constructed before the date of entry into force of the BWM Convention, should install BWMS by the date of the first renewal survey of the ship associated with the IOPP Certificate.

The renewal survey IOPP certificate should be performed every 5 years, therefore all existing ships should be retro-fit with BWMS in 5 years after the date of entry into force of the BWM Convention.

How many existing ships to istall BWMS? 3

How many existing ships should be retrofit with BWMS in 5 years?

ClassNK used IHS Fairplay ship database of January 2016 to determine the number of existing ships, required to install BWMS to comply with the application schedule of regulation B-3, as amended

Ships of < 400 gross tonnage and not engaged in international voyages are excluded. It is estimated that approximately 35,000 ships would be required to install BWMSs.

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Under the current requirement, it is quite natural that retro fitting works will be performed together with the dry docking duration for RS of IOPP certificate.

It should also be noted that the total duration of docking may be extended according to the work for retrofitting.

Such additional time may reduce the dockyard capacity for retrofitting.

Therefore, it is crucial to develop a practical solution to increase the capacity from both way.

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a) Confined engine room space (already optimized to house existing machinery, without additional spaces for BWMS and piping)

b) BWMS retrofitting needs extensive network of various piping, because of its complex construction and operation (both on ballasting and de-ballasting).

c) Difficult to obtain accurate 3D models of engine rooms required for detailed planning

Difficulty of BWMS Installation

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Phase 2 Phase 3Phase 1

Preliminary Study

Outline Design Onboard Examination& 3D Scanning

Phase 5 Phase 6 Phase 7

Detailed Design Preparationfor Retrofit

Retrofitting at shipyard

Phase 4

3D CAD DataMake up

Process of BWMS Retrofitting

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Phase 1

Preliminary Study

There are over 50 BWMSs, which have been already approved.

UV Chemical Electrolysis Ozone etc….

Check Points Space utility in engine room and/or pump room (depended

on BWMS with Hazardous gas) Electrical power capacity assessment Assessment of ballasting/de-ballasting rating, capacity etc. Cost assessment including OPEX Whether ship will be operated in US waters.

Decision on which BWMS to install

Preliminary Study

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Phase 2

Outline Design

Rough planning BWMS Retrofitting, such as location, preliminary piping arrangement, etc., according to existing 2D figures

Outline design

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Onboard Visible Examination

Check Points Deciding installation locations and ancillary work for

machinery installation Pathway planning of additional pipes Electrical modifications including ballast control system Onboard access route for each components

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Phase 3

OnboardExamination

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Onboard measuring by 3D Scanning

Phase 3

Scanning Range : 0.6 - 330mScanning Angle : Horizontal ; 360 , Vertical ; 305Scanning Speed : Max 976,000pt / SecAccuracy of measurement : +-2.0mmScanning with camera to add visible coloring to each dots

Onboard3D Scanning

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Onboard measuring by 3D Scanning

a) 3D scanning is carried out according to the design outline developed.

b) Scanning can be carried out in 3 to 6 hours by two engineers

C) Collected data consists of billions of point data not only XYZ positioning but also RGB information.

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3D CAD Data Development

Phase 4

3D CAD Data Development

Point Cloud Data with its colour

3D CAD Data ,which can be exported to

the existing CAD system13

New Software is needed

Joint R&D supported by ClassNK

Project Period: April 2012 – June 2014

Object: To develop software with highly accurate measurement

capabilities that can allow for quick utilization of

measurement data from 3D laser scanning data of ships

Participants: ClassNK, NYK Line, Mitsui O.S.K. Lines, "K" Line,

Sasebo Heavy Industries, Sanwa Dock,

MTI, The University of Tokyo, ClassNK Consulting Service,

ARMONICOS, S.E.A. Systems

R&D of new technology

for application in 3D laser scanner

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Characteristics of ClassNK-PEERLESS

a) The Software can run on a basic work station.

b) Rich stencil template for basic components (such as pipes, valves, etc ) has been already prepared,

c) Automatic pipe recognition function

d) Easy to transfer the 3D CAD data to famous 3D CAD Software, used for Maritime. Exporting to AVEVA Marine in 5 minutes and exporting to

CADMATIC through CADMATIC exchange in 1 minute., and

c) Have been updated according to the feedback from Ship yards and designers.

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Advantage of ClassNK-PEERLESS

◆ More accurate 3D modeling can be easily made.

◆ Processing period for modeling can be shortened to one week (from 1 month).

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Detailed Design

Phase 5

Detailed Design

Basic design

3D Data created by ClassNK-PEERLESS

BWMS 3D Model

3D Design Model

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Detailed Design using existing CAD system

Engine room Pump room

(for Bulk carriers, PCC, etc.) (for Oil Tankers, Chemical Tankers)

Installation for sensors and sampling facility will be varied by ship-type 18

Detailed Design

3D model of Machinery stands3D model of distribution pipes

Can create highly detailed designs includingDistribution pipes, Pipe support, Machinerystands, etc.

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New Machines for Pipe Works

Pipe Coaster Pipe Form

Elbow Cutter Positioner20

Preparation work for retrofits

Phase 6

Preparationfor Retrofitting

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Very important to prepare machine supports, and etc. in advance 21

Retrofitting at our shipyard

Phase 7

Retrofitting in our shipyard

Highly experienced engineers and onsite staff will be needed, not only for piping but also wiring and monitoring

3D Model should be used on sight.

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Retrofitting at our shipyard

Phase 7

Retrofitting in our shipyard

For installation, a new access route to engine room should be newly prepared.

In this case, a new working hole to engine room was made.

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Our experiences of BWMS retrofit (2016/09)

※1 Designing and engineering work only

No. Type of Ship D/W BWTS Maker BTMS Capacity Work Finish

1 General Cargo 10,000 FILTER + CHEMICAL 250 m3/h 2010/10

2 General Cargo 12,000 FILTER + CHEMICAL 250 m3/h 2013/01

3 General Cargo 14,000 FILTER + UV 250 m3/h 2013/11

4 General Cargo 13,000 FILTER + UV 150 m3/h 2014/03

5 General Cargo 12,000 FILTER + US + UV 500 m3/h 2014/07

6 Chemical Tanker 20,000 FILTER + UV 600 m3/h 2014/10

7 CHIP CARRIER 54,000 OZONE INJECTION 1,500 m3/h 2015/03

8 CHIP CARRIER 54,000 OZONE INJECTION 1,500 m3/h 2015/05

9 LPG Carrier 9,200 FILTER + UV 250 m3/h 2015/05

10 RORO 11,000 FILTER + UV 200 m3/h 2015/07

11 PCC 19,000 FILTER + CHEMICAL 500 m3/h 2015/10

12 Bulk Carrier 28,000 FILTER + UV 1,000 m3/h 2015/11

13 LPG Carrier 4,600 FILTER + UV 250 m3/h 2016/02

14 Chemical Tanker 12,000 FILTER + UV 300 m3/h 2016/04

15 Chemical Tanker 3,500 FILTER + UV 300 m3/h 2016/03

16 PCC 19,000 FILTER + CHEMICAL 500 m3/h 2016/04

17 CHIP CARRIER 52,000 OZONE INJECTION 1,500 m3/h 2016/04

18 Bulk Carrier 58,000 FILTER + CHEMICAL 1,900 m3/h 2016/05

19 Bulk Carrier 28,000 FILTER + UV 900 m3/h 2016/06

20 PCC 18,000 FILTER + UV 400 m3/h 2016/06

21 PCC 17,000 FILTER + UV 400 m3/h 2016/09

22 CHIP CARRIER 64,000 OZONE INJECTION 1,500 m3/h 2016/09

23 OIL TANKER 300,000 FILTER + CHEMICAL 7,500 m3/h 2016/09

24 PCC 18,000 FILTER + UV 400 m3/h 2016/09

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Retrofitting at our shipyard

BWMS EQUIPMENT

NEW BALLAST PIPE

EXIST. EQUIPMENTS

EXIST. PIPE LINES

HULL CONSTRUCTION

FLOOR JOISTS

＜Processing＞Filtration + UV

＜Capacity＞500m3/h

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Retrofitting at our shipyard

＜Processing＞Filtration+ Chemical Injection

＜Capacity＞500m3/h

BWMS EQUIPMENT

NEW BALLAST PIPE

EXIST. EQUIPMENTS

EXIST. PIPE LINES

HULL CONSTRUCTION

FLOOR JOISTS26

Retrofitting at our shipyard

＜Processing＞Filtration+ UV

＜Capacity＞1,900m3/h

BWMS EQUIPMENT

NEW BALLAST PIPE

EXIST. EQUIPMENTS

EXIST. PIPE LINES

HULL CONSTRUCTION

FLOOR JOISTS27

Retrofitting at our shipyard

＜Processing＞Filtration+ UV

＜Capacity＞1,900m3/h

BWMS EQUIPMENT

NEW BALLAST PIPE

EXIST. EQUIPMENTS

EXIST. PIPE LINES

HULL CONSTRUCTION

FLOOR JOISTS28

Phase 2 Phase 3 Phase 4Phase 1

Preliminary Study

Outline Design Onboard Examination& 3D Scanning

3D CAD Data Development

<1Month 1 Month 2days-<1week < 2weeks

Phase 6 Phase 7

Detailed Design by usual CAD

Retrofitting at our shipyard

1Month 1 Month 2 weeks

Phase 5

Preparation for Retrofit

Time schedule prior to the actual work at dry-dock(targets for total duration is less than 6 month,

Phase7 should be finished during the duration for SS. )

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Position of SANWA DOCK, which is specialized “Ship Repair and Retrofitting” Dock

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New Dock, Factory, Office for 2016

New Factory

New Office

New DockNO.7 : 220m x 45.0m

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Length x Breadth : 220.0m x 45.0mDocking capacity : 63,000 G/TScheduled Completion Date : May 2016

Large size Dry Dock for retro-fiting is newly constructed

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http://www.armonicos.co.jp/products/classnk-peerless-en/

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