Correlation of Smoke Levels with Engine-Lubricating-Oil Solids in Metropolitan Transit Buses

Format:

Conference/Event

Author/Creator:

Pellegrin, Vincent D., author.

Conference Name:

SAE International Truck and Bus Meeting and Exposition (1987-11-16 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

The prospect of monitoring in-service particulate emissions of transit buses by examining the cumulative records of engine-lubricating-oil solids was investigated. This possibility was suggested by the observation that the same particulates emitted from engine exhaust also enter the engine crankcase. To test this hypothesis, four in-service metropolitan transit buses were selected for their varying exhaust-smoke levels. The relationship between lubricating-oil solids to exhaust opacity levels was investigated by evaluating the results of some periodic oil-analysis and smoke-opacity tests. This evaluation is presented along with the procedures used to obtain the data. The specifications and in-service operating profiles of the buses are also described. The evaluation revealed a sufficiently strong correlation between opacity and total suspended solids in the engine lubricating oil to warrant further development with a view to practical applications. Such an application is suggested for transit-bus operations

Notes:

Vendor supplied data

Publisher Number:

872251

Access Restriction:

Restricted for use by site license