BWM-2011-23 Status, installations and experiences Jad Mouawad
Agenda Status Ratification Entry into force Standards Performance Safety Experiences New Buildings & retrofits New Buidlings projects, comments and failures Retrofits projects, comments and failures 2
Agenda Status Ratification Entry into force Standards Performance Safety Experiences New Buildings & retrofits New Buidlings projects, comments and failures Retrofits projects, comments and failures 3
Denmark 29th country? Panama 30th? Party Local requirements Party & local requirements Status: 28 of 30 parties & 25.43% of 35% tonnage required for entry into force 4
2011 2012 2013 2014 2016 2018 12 months Exchange or Treatment Treatment Ratification Entry into force Anniversary date in 2016 Intermediate or Renewal survey October 4, 2011 5
Agenda Status Ratification Entry into force Standards Performance Safety Experiences New Buildings & retrofits New Buidlings projects, comments and failures Retrofits projects, comments and failures 6
Installation requirements - Performance Capacity Bypass Other operations Auxiliary systems Chemical storage Corrosion Water remains 7
Installation requirements - Safety Arrangement of compartments - Complete treatment system in a separate compartment - Single componets can be stored - Zone 1 with low flash point - Ventilation of hazardous spaces rules to be followed when low flash point Treatment system in engine room - Chemicals/gases far below established standards - Escape always possible - Masks/suits available in cases of emergency Steel deck Gas tight Ventilation: - Separate - Exhaust - 30 air changes/hr - Single failure proof Thin ventilation ducts not allowed - Self closing - Opens outward 300mm sill height 8
Installation requirements - Safety Liquid chemicals storage tanks stowed in the engine room Flash point not exceeding 60 C not accepted Well ventilated space Easy inspection and filling access Approved construction with suitable material Air pipes to open deck High level alarm (can be combined with level gauging system) Drip trays Signs on tanks Manual for filling, emergency etc. Protective clothing (2 sets) 9
Agenda Status Ratification Entry into force Standards Performance Safety Experiences New Buildings & retrofits New Buidlings projects, comments and failures Retrofits projects, comments and failures 10
New Buildings & retrofits - Scope Statutory - Certificate of Compliance - Statement of Compliance After ratification - International Ballast Water Management Certificate Full compliance with DNV Rules Pt.6 Ch.18 Sec.4 Flag acceptance of type approval certificate manufacturer Class - BWM-T notation - Equivalent to Statement/Certificate - DNV Rules Pt.6 Ch.18 If no notation or Statement/Certificate are requested - Minimum safety standard in DNV Rules Pt.6 Ch.18 Sec.4 must be followed - Thorough review for the first installation to establish safe standard 11
New Buildings & retrofits Approval & Surveys Approval (DNV Rules Pt.6 Ch.18) Exchange BWM Plan Sequential Flow through Dilution Sediment management Sampling Exchange Documentation Sampling Openings for flow through Surveys (Reg. E-1) Treatment Control & Instrumentation Piping systems Bypasses Capacity Foundation (if necessary) Treatment Installation Commissioning Documentation No sampling for organisms required by Regulation E-1 12
Retrofits - Scope Piping systems Electrical systems Control systems Structure and stability P&ID of ballast system Any related arrangements like ventilation, drainage etc. Drawings of the MSB modification Updated electric load balance Updated electrical power single line diagram Selectivity evaluation of the largest new breakers introduced into the main switchboard vs. the generator breakers. It should be evaluated whether new short circuit calculations are found necessary System block diagram Power supply arrangement List of controlled and monitored points Description of interface towards the ship s existing systems Depending on the ratio of the added weight to the ship s light weight, new stability calculations may be required. Any reinforcements needed due to the added elements may be required to be approved. 13
Experiences New Buildings Projects ship types - Drilling rigs: 2 - Tankers: 3 - Ore Carriers: 1 - Supply ships: 14 - Container Carriers: 1 - Car Carriers: 4 - Bulk Carriers: 3 - Heavy lift: 4 - Naval: 1 - General cargo: 1 - Gas carriers: 1 Projects manufacturers: - Alfa Laval: 13 - Optimarin: 5 - Oceansaver: 2 - Unitor: 3 - NK-O3: 1 - Panasia: 3 - Techcross: 1 - Hydemarine: 3 - NEI: 1 - Oceanguard: 2 - Greenship: 1 14
New Buildings Typical comments Stripping system Ballast water must be treated before mixed with ejector Usually a challenge as ejector will loose effect Capacity Capacity must always exceed that of the ballast pump; or Flow control required Water remains Stripping system ok How much water upstream? Bypasses Gravity discharge only ok when system treats one way Safety Separate treatment room Ventilation outlets 15
New Buildings Typical failures Filters Clogging, frequent back flushing Bigger discharge line Larger back-flush pump Lower BW capacity Operation Control systems Water remains Not possible to empty tank Sea trials Difficult operation to avoid contamination 16
Experiences Retrofits Projects ship types - Passenger/Cruise: 3 - Chemical tankers: 1 - Oil tankers: 1 - Asphalt tankers: 1 - Supply ships: 1 - Container Carriers: 1 - Car Carriers: 3 - Bulk Carriers: 1 - General cargo: 1 Projects manufacturers: - Fresh water/no ballast: 3 - Optimarin: 1 - Oceansaver: 2 - Unitor: 2 - NEI: 1 - JFE: 2 - Severn Trent De Nora: 1 - Place only: 1 Possible during dry dock period/renewal period? 17
Retrofits Typical comments Stripping system Ballast water must be treated before mixed with ejector Usually a challenge as ejector will loose effect Capacity Accepted equivalent to one pump; or Flow control Water remains Stripping system ok How much water upstream? Bypasses Gravity discharge only ok when system treats one way Blank flanges on all bypass lines or non-return valves Safety Separate treatment room always a problem Ventilation outlets 18
Retrofits Typical failures Filters Clogging, frequent back flushing Bigger discharge line Larger back-flush pump Lower BW capacity Fittings, missing drawings Missing scope, planning, many revisions Misjudge place needed for valves, bends etc. Electrical systems Connection to switchboard - blackouts Load balance must take out some other equipment Riding crew Not so good experience Some agents claim to have good experience 19
Safeguarding life, property and the environment www.dnv.com 20