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US Fishing Vessel Powering and NOx Emissions

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This paper presents the results of SNAME Small Craft Panel SC-3 Fishing Systems investigation of trends in US fishing vessel (Fig. 1) (L > 22.9 m) powering and NOx emissions (1900–2000). The study estimates the 1,299 vessels in the US fishing fleet produce 306 tons/day of NOx. The largest powers are found in the decades of 1960–1980. The actual power kW is compared to a reference power kW o using the Powering Index Ratio PIR = kW/kW o. It was found that 50 to 80% of the power in seiners, trawlers, and crabber/trapper/clam vessels have PIR > 2.5. The reduction of fishing vessel diesel engine NOx can be best achieved by adopting acceptable levels of vessel power/length for the basis of revenue and tax rather than using the vessel age as emissions reduction criteria.

Document Type: Research Article

Publication date: 2007-07-01

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  • Marine Technology is dedicated to James Kennedy, 1867-1936, marine engineer, and longtime member of the Society, in recognition and appreciation of his sincere and generous interest in furthering the art of ship design, shipbuilding, ship operation, and related activities.

    The Technical papers in this quarterly flagship journal cover a broad spectrum of research on the latest technological breakthroughs, trends, concepts, and discoveries in the marine industry. SNAME News is packed with Society news and information on national, section, and local levels as well as updates on committee activities, meetings, seminars, professional conferences, and employment opportunities.

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