FALL 2007 - SPRING 2008 SCHEDULE (2nd or 3rd Wed unless noted) | Date | Topic | Host |
| Sept 19, 2007 | Ocean Energy in the US - The Industry In The Making | SNAME |
| Oct 24 (4th wk) | Effect of Reynolds # and Hull Appurtenances on Spar Vortex Induced Motions (VIM) | SNAME |
| Nov 14 | San Francisco Bay Ferries - Postponed | SNAME |
| Dec 12 | Evaluation of Stern Flap Installation on the USCGC MORGENTHAU | ASNE |
| Jan 10, 2008 (Thursday) | Panel on Diesel Engine Emissions | ASNE |
| Feb 20 | Hydrodynamic Peculiarities of Catamaran-like Sections (Student Paper) | SNAME |
| Mar 19 | Remote Power Generation for Deployment of Subsea Technologies in Deepwater Marginal Fields | SNAME |
| Apr 16 | Tour of Bay Ship & Yacht | ASNE |
| May 21 (chg) | The State of the Local ASNE & SNAME | ASNE |
| | |
MEETINGS SYNOPSISSeptember 19, 2007
Topic: Ocean Energy in the US - The Industry In The Making
Speaker: Alla Weinstein, Director, Ocean Energy
Location: Pyramid Alehouse & Restaurant, 901 Gilman Street, Berkeley, CA
Abstract: Over the last 5 years recognition of Ocean Energy and offshore wave energy conversion in the United States progressed from nonexistent to a flurry of activities in the US Congress, at the state level and local. During the next year a number of demonstration installations will be deployed in coastal waters of the US. These activities come at a time of increased interest in ocean energy worldwide. What is the status of US energy policy and DOE programs for Ocean Energy? The presentation will conclude with a brief overview of current legislation affecting the industry. The paper describes the development of the Makah Bay, WA offshore power plant using a point absorber wave energy conversion device - AquaBuOY. The device is the next generation of the technology that combines the Swedish Hose-Pump and the IPS Buoy technologies to generate clean energy from ocean waves. Currently the project is in the final stages of the FERC permitting process. The paper also outlines creation of Ocean Energy industry in the US through the development of the Makah Bay pilot offshore power plant.
BACK TO TOP OF PAGE* * * * * *October 24 (4th Week)
Topic: Effect of Reynolds Number and Hull Appurtenances on Spar Vortex Induced Motions (VIM)
Speaker: Tim Finnigan, Offshore & Marine Structures Team Manager, Chevron Energy Technology Co. and Owen H. Oakley, Jr., Research Consultant, Chevron Energy Technology Co.
Location: Cafe de la Paz, 1600 Shattuck Avenue, Berkeley CA
Abstract: Chevron Energy Technology Company (CETC) recently completed a series of model tests under Super-CriticalReynolds Number conditions to investigate the effect of Reynolds Number and hull appurtenances on spar vortex induced motions (VIM) for a vertically moored 6DOF truss spar hull model with strakes. In order to assess the importance of appurtenances (chains, pipes and anodes) and current heading on strake effectiveness, tests were done with several sets of appurtenances, and at various headings and reduced velocities. This was the first time such tests, involving a 6-foot wide by 10-foot deep model, were performed. Blind comparisons of computational fluid dynamics (CFD) predictions were made against these experiments and will be presented. The overall objective of the second part of the work is to mature CFD modeling capability related to motion and loads for offshore platforms.Specific goals include the testing of newly developed meshing techniques and seeking an understanding of how spar appurtenances interact at Supercritical Reynolds Numbers.BACK TO TOP OF PAGE* * * * * *November 14
Topic: San Francisco Bay Ferries - Postponed
Speaker: TBD
Location: TBD
Abstract: TBDBACK TO TOP OF PAGE* * * * * *December 12
Topic: Evaluation of Stern Flap Installation on the USCGC MORGENTHAU
Speaker: Rubin Sheinberg, grand ol' Naval Engineer of the Coast Guard, Chief - Naval Architecture Branch, U.S.Coast Guard Engineering Logistics Center
Location: Speisekammer Restaurant, 2424 Lincoln Avenue, Alameda, CA
Abstract: The USCG Engineering and Logistics Center (ELC) in association with Science and Technology Corporation, and with the technical support from David Taylor Model Basin, Carderock Division, Naval Surface Warfare Center - Hydrodynamics Directorate, prototyped a stern flap on the USCGC MORGENTHAU in order to determine if benefits in fuel economy would be realized. Mr. Sheinberg will discuss the instrumentation installed, the tests conducted, the performance measurements, and the fuel saving analyses conducted for the performance evaluation both before and after the installation of the stern flap. The presentation will also compare the results of the two sets of trials and estimates of the fuel savings provided by the stern flap installation as well as follow on lessons learned since the installation and tests have occurred.BACK TO TOP OF PAGE* * * * * *January 10, 2008 (Thursday)
Topic: Panel on Diesel Engine Emissions
Speaker: Brian Constable, APL Maritime; Dragan Samardzic, Matson Navigation Company; Charlie Walther, Principal, Walther Engineering Services
Location: Pasta Pelican Restaurant, 2455 Mariner Square Drive, Alameda CA.
Abstract: A number of new regulations on air emissions from marine vessels are being promulgated by IMO, and other initiatives are either enacted or under consideration by CARB (the California Air Resources Board), EPA, and local ports. These new regulations require use of pre and/or post treatment to achieve emission limits. Two Bay Area shipping companies, Matson Navigation Company and APL Maritime, as well as the Bay Area ferry transit systems have been in the forefront of installing and testing technologies for reducing emissions. Brian Constable from APL will discuss APL's recent application of a water injection system to reduce NOx from the main engine of a C11 class containership, and a test applying cold ironing in port with localized power generation using generators run on LNG; Dragan Samardzic from Matson will discuss its recent installation of a SCR for post treatment of exhaust from a diesel generator on a C9 class containership; and Charlie Walther will review installations and tests on Bay Area ferries, including use of bio fuel on the Blue & Gold ferries, and SCR urea injection systems on the Vallejo ferry and the new WTA ferries.BACK TO TOP OF PAGE* * * * * *February 20 - Past Section Chairman Night
Topic: Hydrodynamic Peculiarities of Catamaran-like Sections
Speaker: Jon Elkin, Captain, Blue & Gold Fleet, San Francisco; Assistant, UC Berkeley, Computational Marine Mechanics Lab
Location: Seaborg Room, UC Berkeley Faculty Club, Berkeley, CA
Several of our members are associated with Chevron Corporation, which has graciously agreed to sponsor the cost of all Student members and Past Section Chairman for this meeting.
Abstract: When floating bodies that ìtrapî a region of the free surface are forced to oscillate, they are known to exhibit strange behavior when a resonance occurs in the trapped region. This resonance results in drastic changes in the added mass and damping coefficients (a measure of the hydrodynamic force of the fluid on the body) from what would be observed for a single body. The present work extends Robert Seahís 2006 presentation on the hydrodynamic behavior of a pair of twin rectangular cylinders oscillating in heave. In the present work, sway and roll motion of the same body are considered. Hydrodynamic peculiarities are discussed, including persistent body and fluid oscillations, enormous moonpool wave amplitudes, and bodies that don't generate any waves when they oscillate. The practical engineering applications of such bodies, including their use in wave energy extraction devices, floating breakwaters, and stable ocean vessels, are explored.
BACK TO TOP OF PAGE* * * * * *March 19
Topic: Remote Power Generation for Deployment of Subsea Technologies in Deepwater Marginal Fields
Speaker: Dr. Christian Cermelli, Naval Architect, Partner, Marine Innovation & Technology
Location: CafÈ de la Paz, 1600 Shattuck Ave, Berkeley, CA
Abstract: There are marginal fields with significant reserves that are not large enough to neither warrant a dedicated process platform nor close enough to an existing platform with spare capacity. These reserves may become economic if development costs can be reduced. The optimal development strategy may combine both subsea and surface equipment to maximize the potential of each technology. A minimal floater with sufficient payload capacity can be used to generate power for this equipment. Dr. Cermelli and his team have developed and qualified such a minimal floater, and will discuss thiscurrent industry trend.
BACK TO TOP OF PAGE* * * * * *April 16
Topic: Tour of Bay Ship & Yacht & after-dinner presentation on the Construction of the Syncrolift
Speaker: Employees of Bay Ship & Yacht as guides and Joel Welter, Chief Naval Architect, for the Syncrolift presentation.
Location: Bay Ship & Yacht Company, 2900 Main Street, Alameda, CA and Otaez Restaraunt, 1619 Webster Street, Alameda, CA
Abstract: This months meeting features yard tours of Bay Ship and Yacht Company. Founded in 1977 by Bill Elliott, the companyperforms commercial shipbuilding and repair, superyacht refit and repair, traditional shipbuilding, and industrial fabrication. Employees of the company will give tours to small groups in order to give everyone a chance to ask questions and enjoy the experience. Joel Welter, Chief Naval Architect, will be giving a short slide show presentation after dinner detailing the syncrolift facility construction process.
BACK TO TOP OF PAGE* * * * * *May 21 (chg)
Topic: The State of the Local ASNE & SNAME
Speaker: YOU
Location: Speisekammer Restaurant, 2424 Lincoln Avenue, Alameda, CA
Abstract: Final Meeting Year in Review and Looking Forward: Join ASNE, SNAME and guests to wrap up this years meeting season. The officers from both societies would like to get together in a relaxed atmosphere to share ideas and hear opinions from everyone. This is a chance for the membership to discuss all aspects of our organizations including, but not limited to: review of meeting venues and previous meeting topics, new meeting topics to be presented starting next fall, gaining and maintaining membership, as well as the direction of the sections. Our membership has great ideas, often coming out during the social hour in normal conversation. Now we are taking the time to really focus on compiling these ideas in preparation for the next year. We especially welcome ideas for topics beginning next fall and running through spring. If you cannot make the meeting, but would like to provide feedback or ideas for future meetings, you can always email or phone any of the officers.
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