Mid-January
2006
Table
of Contents:
Pacific Northwest Section |
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Philadelphia Section |
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Mid-January
2006
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Pacific
Northwest Section November 10, 2005 On November 10, 2005, the Pacific Northwest Section held a technical meeting at Cheer’s Restaurant in North Vancouver, BC. Forty-five members attended the excellent presentation on “The New Zealand Offshore Patrol Vessel Design” by Mr. Dan McGreer, Principal Engineer at Aker Marine. Mr. McGreer’s presentation included a project overview, performance requirements, particulars, general arrangement, ship’s performance and detail design of the new Offshore Patrol Vessel (OPV) for the New Zealand Navy. Advantages of commercial approach to the OPV design were also discussed. The new Offshore Patrol Vessel (OPV) is part of a larger vessel program for the New Zealand Navy. Under “Project Protector” one multi role vessel, two offshore patrol vessels and four inshore patrol vessels will be built for the New Zealand Navy. Aker Marine was involved with the design of the OPV’s. The OPV will be capable of undertaking a wide range of roles including: surface patrol, coastal surveillance, smuggling interdiction, search and rescue, fisheries patrol and enforcement and counterterrorism. The operational area is designated in the waters around New Zealand, the deep Southern latitudes, the Tasman Sea and the waters of Australia. The new OPV’s will have a capability of 22 knots (Sea 4), a range of 6000 NM, a maximum complement of 49 persons, and will be ice class 1C.
Mr. McGreer went over the details in the general arrangement and the propulsion system, and explained a bit about the interesting detail design of the six construction modules. The presentation concluded with a discussion on the advantages of the commercial approach to naval vessel design, which includes mainly cost reductions in construction and in equipment purchase, and, therefore, the affordability to purchase more vessels for the same cost of a typical naval vessel. A
lively discussion followed the presentation.
Philadelphia
Section December 14 , 2005 On December 14, 2005, at a meeting of the Philadelphia Section, a presentation was made on “Ballast Water Treatment System for the Control of Invasive Species and Reduction of Corrosion in Ballast Tanks.” The guest speaker was Peter D. McNulty, President of NEI Treatment Systems, LLC, and a member both of SNAME and NACE (the National Association of Corrosion Engineers). NEI
Treatment Systems, LLC has developed a ballast water treatment technology,
Venturi Oxygen Stripping™, to address pending State, Federal, and
International regulations requiring all international vessels to treat
ballast water prior to discharge in port. The technology employs a unique
method of removing dissolved oxygen from water as it is drawn into the
vessel. It is a non-toxic method that uses no chemicals and has no negative
affect on port ecosystems. An interesting aspect of the system is that as the ballast is drained, inert gas is introduced into the emptying tanks. This element of the treatment complies with the new ABS Guide for Inert Gas Systems for Ballast Tanks as a safety improvement to minimize the explosion hazard for double-hull tankers. To date, funding from NOAA and the Great Lakes Fisheries Commission has enabled NEI to prove the treatment system meets the pending International standard in shipboard trials. Since the shipboard trials were performed with a prototype, additional research is needed to develop an automated system. Although the meeting took place during an unusual December snowstorm, it was well attended. |
