舶用ディーゼル機関から排出される粒子状物質(PM)の計測とその排出特性(<特集>海洋における大気環境を守るために)

概要

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During the past years great efforts have been taken to reduce particulate (PM) emission from PM sources on land, especially automobile engines, to conform to domestic regulations. In the near future, proportion of PM emission of marine diesel engines to that of the sources on land may increase in coastal area and surround of harbors, and therefore some preventive measures against PM emission of marine diesel engines may be needed. In this study, particulate emissions of a four-stroke medium speed diesel engine were measured according to JIS B 8008. A method which fixes quantity of collection loss of sulfate in the dilution system for PM emission measurement is proposed. Also the results of thermogravimetric analyses (TGA) of fuel oil, lubricant and soluble organic fraction (SOF) extracted from PM are presented. Characteristics of PM emission of the diesel engine, such as PM size distribution, are also presented. These results were studied to clarify PM emission characteristics of the diesel engines and to establish appropriate PM measurement method applicable to marine diesel engines.
独立行政法人海上技術安全研究所の論文
2011-10-31