US Fishing Vessel Powering and NOx Emissions
Abstract: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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