ディーゼル機関のばいじん除去(その1) -ばいじんの性状およびろ過材の特性- Research and Development for Dust Removal on Diesel Engine(Part-1) -Dust Properties and Filter Element Characteristics-
We have been developing a soot removing system for a diesel engine emission.<BR>This system, used granular filter, is set in a exhaust gas manifold, and soot is collected and burned continuously during engine running.<BR>In this paper, the removing conception, and diesel emission constituent, soot characteristic and results of granular characteristics test are reported.<BR>Results of this research are summarized below.<BR>(1) . The emission rate of soot for diesel engines is about 100mg/Nm<SUP>3</SUP>., and depends on used fuel properties.<BR>(2) . Properties of soot vary with sulfur content of used fuel.<BR>(3) . A calorific value and a ignition temperature point of soot become high with carbon content.<BR>(4) . When mechanical and thermal strength, density and compact installation are considered, silica-alumina, for example a mullite ball is suitable as a granular.<BR>(5) . This trapping rate of granular element is hight.<BR>Soot is burned by heating air at 600°C, and the granular is renewed.
日本舶用機関学会誌 31(12), 883-892, 1996-12-01
The Japan Institute of Marine Engineering