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MARINE COATINGS ECOSPEED DECISION VALIDATED BY ERNEST SHACKLETON British Antarctic Survey’s decision to apply the Ecospeed hard coating to the hull of its new polar research ship RRS Sir David Attenborough has been validated after the recent drydocking of sister vessel RRS Ernest Shackleton. The 80m long vessel, coated with Ecospeed in 2009, drydocked last month at the Orskov shipyard, in Frederikshavn, Denmark, where the hull was found to be in “very good condition”. BAS Superintendent Andrew Webb, said: “Shackleton’s hull condition is the best I have seen after typical ice year operations. We tend to account for touch up coats every other year to areas impacted by the ice, but this year we needed to repair even less surface area than expected, despite the vessel encountering heavy Antarctic ice.” The Orskov yard had to touch up areas in the bow and rudder areas. A touch up coat was last applied in 2015. Only remedial coats are required as Ecospeed is a one-coat system and does not need to be removed or reapplied. The durability of the coating and the ease with which repairs can be effected were the reasons why BAS/NERC selected Ecospeed for the newbuild RRS Sir David Attenborough. “The shipyard initially wanted to apply its preferred supplier’s coating system, but based on our experience of this coating on the James Clark Ross and Ernest Shackleton we wanted Ecospeed. “We already had this system on the entire hulls below the water line of both research vessels and found it much easier to repair: it doesn’t need to be applied under such strict environmental conditions or require the hire of any specialist application equipment.” During 2013/14 BAS replaced the competitor system with Ecospeed across the entire hull of James Clark Ross, which is scheduled to drydock this month (August). Subsea Industries’ hull protection system will be applied to the hull of RRS Sir David Attenborough, the polar research ship under construction at the Cammell Laird shipyard in Birkenhead, Liverpool, UK. The 15,000gt research vessel, scheduled for operational duties in 2019, will be one of the most advanced polar research vessels in the world. RRS Ernest Shackleton, launched in 1995, is a logistics vessel used to transport cargo, fuel and passengers. The ship has basic scientific capability and undertakes research work in the Antarctic. Built by Kverner Klevin Leirvik, Norway as the Polar Queen for the Rieber Shipping of Bergen she was deployed in the Antarctic by other national programmes before being acquired by The British Antarctic Survey in August 1999. CORROSION PREVENTION CATHELCO ICCP FOR THREE RUSSIAN TRAWLERS Cathelco is supplying hull corrosion protection systems for three trawlers under construction as part of Russia’s fishing fleet modernisation programme. The freezer trawlers, being built by the Vyborg Shipyard for the Arkhangelsk Trawl Fleet JSC, will operate in the North and Far East fishing basins. Each vessel will be equipped with the latest trawl equipment enabling the production of up to 160 t of raw fish products per day. The first in the series of vessels, named Barents Sea, is 86m in length and 17m in breadth will be rated to ICE3 class with hull strengthening to Arc4. The trawler will have an automated fish filleting and canning plant together with facilities for processing fish oil and meal. 8
The Cathelco impressed current cathodic protection (ICCP) systems will protect the underwater surfaces of the ship’s hulls from corrosion in the most demanding Arctic conditions. Unlike sacrificial anodes which may have to be changed at every drydocking the ICCP anodes have a life in excess of 15 years. This reduces maintenance costs as well as ensuring that the hull receives reliable protection. “This is one of a number of projects where we have worked in close collaboration with Vyborg Shipyard to provide a technical solution which will work effectively in Arctic waters”, said Anna Siodlak who has supervised the project at Cathelco. The purpose of the ICCP system is to neutralise the corrosive activity which occurs on the surface of the hull by enveloping it in a small, but effective impressed electrical current. The system consists of an arrangement of hull mounted anodes and reference electrodes which are wired to a control panel. The reference electrodes measure the electrical potential at the hull/seawater interface and send a signal to the control panel which raises or lowers the output to the anodes accordingly. “Systems for fishing vessels are easily installed and usually consist of two aft mounted anodes and reference electrodes, therefore the number of hull penetrations are kept to a minimum”, Anna Siodlak explained. Cathelco are world leading suppliers of ICCP systems for vessels of every size ranging from workboats and fishing vessels to cruise vessels and container ships with a record of more than 20,000 installations. They also produce marine growth prevention systems (MGPS) which prevent blockages in seawater pipework caused by bio-fouling. Type Approved to IMO MEPC 227 (64) MARIPUR NF CLARIMAR MF BALLAST WATER SGS READIES FOR BWMS COMPLIANCE aqua-tools, the specialist in water microbiology, has delivered the first in series of 30 state-of-the-art Rapid ATP Ballast Water Monitoring Systems to SGS Group. The Geneva-based testing and certification body has agreements in place with several countries to inspect and monitor the treated ballast waters of vessels entering their ports, the latest of which is The Kingdom of Saudi Arabia. Vessels discharging ballast water in Saudi Aramco ports will be required to present a ballast water report and sample from 16 August 2017. Dr. Vladimiro Bonamin, Vice-President, Global Business Development Manager, SGS Groups, said: “With the entry into force of the Ballast Water Management Convention next month, ballast water monitoring will become an important aspect of the port state control function, as inspectors test treated water for compliance. aqua-tools, in collaboration with SGS Group (Switzerland) and LuminUltra (Canada), has developed a Rapid ATP technology designed to be the most reliable and effective ballast water monitoring solution on the market.” According to Bonamin, existing bioluminescence methodologies used to monitor Adenosine Tri-phosphates (ATP), a molecular structure, like DNA, that is found in all ACO Marine's new MARIPUR NF and CLARIMAR MF advanced wastewater management systems are the merchant, naval and megayacht sectors most effective solutions for meeting stringent IMO MEPC 227(64) rules. Compact and economical with the lowest operating costs of any sewage treatment plant, CLARIMAR MF and MARIPUR NF are proven to reduce coliform bacteria, TSS, COD, nitrogen and phosphorous content to levels significantly below the mandated requirements. Mark Beavis - Managing Director Nádrazňi 72, CZ -15000 Praha 5, Czech Republic Tel: +420 724 011 775 Email: mbeavis@acomarine.com Web: www.acomarine.com 9
Page 1 and 2: MEM MEM MARINE ENGINEERS MESSENGER
Page 4 and 5: ENERGY FUSION A STEP CLOSER In the
Page 6 and 7: Encouragingly for our new partnersh
Page 10 and 11: living organisms, “are ineffectiv
Page 12 and 13: PROPULSION CONTROL GE RENEWS PARTNE
Page 14 and 15: USERS OF NAPA SOFTWARE CAN ACHIEVE
Page 16 and 17: The bigger of the two test rigs is
Page 18 and 19: NEWBUILDS & DELIVERIES FIRST STAN T
Page 20 and 21: PHOTOCAPTION The second cruise ship
Page 22: SEDNA focuses on the main topics in

MEM38

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