EVENT INFORMATION:
SYMPOSIUM – 14 OCTOBER 2015
EVENT INFORMATION: MARPOL VI –International Regulations for the Prevention of Air Pollution & Energy Efficiency on Ships, Dr. Edmund Hughes, IMO
MARPOL, the International Convention for the Prevention of Pollution from Ships, is concerned with preventing marine pollution from ships. Specifically, Annex VI of MARPOL addresses air pollution from ocean-going ships. The international air pollution requirements of Annex VI establish limits on nitrogen oxides (NOx) emissions and require the use of fuel with lower sulfur content, protecting people's health and the environment by reducing ozone-producing pollution, which can cause smog and aggravate asthma. The requirements apply to vessels operating in U.S. waters as well as ships operating within 200 nautical miles of the coast of North America, also known as the North American Emission Control Area (ECA). Air pollution from ships is specifically addressed in Annex VI of the MARPOL treaty. Annex VI includes requirements applicable to the manufacture, certification, and operation of vessels and engines, as well as fuel quality used in vessels in the waters of the United States. Offshore Floating Liquefied Natural Gas (FLNG), Status, Design Drivers and Challenges David Dobson & Keith Hutchinson, Babcock International Group, Energy and Marine Technology Drawing on nearly two decades of experience in the design and evaluation of offshore Floating Liquefied Natural Gas (FLNG) concepts and assets, the speakers will consider and present the history, development and imminent deployment of FLNG FPSO (Floating, Production, Storage and Offloading) vessels and hence discuss the many conflicting and diverse design and operational criteria that have to be addressed coherently within the design process to facilitate the generation of robust and safe FLNG solutions. In order to ‘set the scene’, the history and development of FLNG over the past few decades will be discussed. Aspects that will be covered will include Types and Configuration of FLNGs, possible Areas of Operation / Deployment and hence current vessels under construction and proposed. The presentation will discuss the regulatory framework and technical challenges that are faced by Naval Architects and Marine Engineers in the development of compliant and near-optimal design solutions with respect to production (including Process Topsides, Power Generation, Integration, Storage etc.) and operation (including Environment, Mooring, Offloading, Maintenance etc.) performance philosophies and criteria together with the management of environmental impacts. Hence, the production of balanced, robust and safe designs with the required levels of operational performance will be discussed, specifically with respect to Principal Dimensions, Hull Forms, Appendages, Topology / Layouts, Safety, Stability, Motions, Mooring, Structural Configurations and Scantlings, Prime Movers, Marine Systems, Electrical Philosophy, Control Systems etc.
Special Design Thrusters for Weather Vaning and Integrated Engineering Solutions for FLNG & FPSO Kevan Hunt, Wartsila A change in the power generator alternatives.
Assessing Key Reliability and Critical Aspects of Ship Systems Michail Cheliotis, University of Strathclyde The maintenance of the fleet has always been a key aspect in ship operation and the shipping industry in general, as the condition of the global maritime fleet is closely tied with the prosperity of international trade. Improving and potentially optimizing the strategies and techniques used for maintenance and inspection constitutes a front line issue. This presentation focuses on the study and assessment of the reliability and criticality of LNG carriers’ ship systems. The assessment is carried out using fault tree analysis with dynamic gates. Based on the analysis results additional spare parts, inspection, and maintenance are suggested. The viability of that proposal is then assessed in terms of the ship’s operation A Numerical Trim Variation Study For Ships Operating in Off Design Conditions Robin H. Dejong, Tu Delft The boom in the oil price between 2000 and 2008 and the increase of environmental awareness motivated the shipping industry to reduce the fuel consumption of new and existing ships. One method to reduce the fuel consumption of an existing ship operating in off design conditions is to adjust the trim of the vessel. The standard method to determine the most optimal trim condition is to conduct towing tank tests. Research is done to determine the applicability of a RANS CFD code for trim variation studies. The results of CFD calculations are validated against experimental data. To determine the physical effects that lead to the existence of a most optimal trim condition the change of the pressure distribution, the frictional resistance and the boundary layer around the hull
EVENT INFORMATION: MARPOL VI –International Regulations for the Prevention of Air Pollution & Energy Efficiency on Ships, Dr. Edmund Hughes, IMO
MARPOL, the International Convention for the Prevention of Pollution from Ships, is concerned with preventing marine pollution from ships. Specifically, Annex VI of MARPOL addresses air pollution from ocean-going ships. The international air pollution requirements of Annex VI establish limits on nitrogen oxides (NOx) emissions and require the use of fuel with lower sulfur content, protecting people's health and the environment by reducing ozone-producing pollution, which can cause smog and aggravate asthma. The requirements apply to vessels operating in U.S. waters as well as ships operating within 200 nautical miles of the coast of North America, also known as the North American Emission Control Area (ECA). Air pollution from ships is specifically addressed in Annex VI of the MARPOL treaty. Annex VI includes requirements applicable to the manufacture, certification, and operation of vessels and engines, as well as fuel quality used in vessels in the waters of the United States. Offshore Floating Liquefied Natural Gas (FLNG), Status, Design Drivers and Challenges David Dobson & Keith Hutchinson, Babcock International Group, Energy and Marine Technology Drawing on nearly two decades of experience in the design and evaluation of offshore Floating Liquefied Natural Gas (FLNG) concepts and assets, the speakers will consider and present the history, development and imminent deployment of FLNG FPSO (Floating, Production, Storage and Offloading) vessels and hence discuss the many conflicting and diverse design and operational criteria that have to be addressed coherently within the design process to facilitate the generation of robust and safe FLNG solutions. In order to ‘set the scene’, the history and development of FLNG over the past few decades will be discussed. Aspects that will be covered will include Types and Configuration of FLNGs, possible Areas of Operation / Deployment and hence current vessels under construction and proposed. The presentation will discuss the regulatory framework and technical challenges that are faced by Naval Architects and Marine Engineers in the development of compliant and near-optimal design solutions with respect to production (including Process Topsides, Power Generation, Integration, Storage etc.) and operation (including Environment, Mooring, Offloading, Maintenance etc.) performance philosophies and criteria together with the management of environmental impacts. Hence, the production of balanced, robust and safe designs with the required levels of operational performance will be discussed, specifically with respect to Principal Dimensions, Hull Forms, Appendages, Topology / Layouts, Safety, Stability, Motions, Mooring, Structural Configurations and Scantlings, Prime Movers, Marine Systems, Electrical Philosophy, Control Systems etc.
Special Design Thrusters for Weather Vaning and Integrated Engineering Solutions for FLNG & FPSO Kevan Hunt, Wartsila A change in the power generator alternatives.
Assessing Key Reliability and Critical Aspects of Ship Systems Michail Cheliotis, University of Strathclyde The maintenance of the fleet has always been a key aspect in ship operation and the shipping industry in general, as the condition of the global maritime fleet is closely tied with the prosperity of international trade. Improving and potentially optimizing the strategies and techniques used for maintenance and inspection constitutes a front line issue. This presentation focuses on the study and assessment of the reliability and criticality of LNG carriers’ ship systems. The assessment is carried out using fault tree analysis with dynamic gates. Based on the analysis results additional spare parts, inspection, and maintenance are suggested. The viability of that proposal is then assessed in terms of the ship’s operation A Numerical Trim Variation Study For Ships Operating in Off Design Conditions Robin H. Dejong, Tu Delft The boom in the oil price between 2000 and 2008 and the increase of environmental awareness motivated the shipping industry to reduce the fuel consumption of new and existing ships. One method to reduce the fuel consumption of an existing ship operating in off design conditions is to adjust the trim of the vessel. The standard method to determine the most optimal trim condition is to conduct towing tank tests. Research is done to determine the applicability of a RANS CFD code for trim variation studies. The results of CFD calculations are validated against experimental data. To determine the physical effects that lead to the existence of a most optimal trim condition the change of the pressure distribution, the frictional resistance and the boundary layer around the hull
