Some Mechanisms Affecting the Mass of Diesel Exhaust Particulate Collected Following a Dilution Process Engine Research Dept., General Motors Research Laboratories, Warren, MI

Format:

Conference/Event

Author/Creator:

Plee, Steven L., author.

Conference Name:

1980 Automotive Engineering Congress and Exposition (1980-02-25 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1980

Summary:

Previously measured particulate mass concentrations from a single-cylinder indirect-injection diesel, obtained under conditions of both varying dilution ratio and varying filter temperature, are examined in detail. Considering the mechanisms of condensation, adsorption, and diffusion, the observed variations in total particulate mass are attributed primarily to the adsorption and desorption of exhaust hydrocarbons on the solid particulate matter. A simple Langmuir adsorption model is used to explain qualitatively the observed effects of dilution ratio and sample temperature. Only under conditions of relatively high hydrocarbon emission is the condensation mechanism also shown to be important. The simple adsorption analysis also predicts the trends observed in CVS (Constant Volume Sampling) dilution tunnels in which filter temperature and dilution ratio change simultaneously

Notes:

Vendor supplied data

Publisher Number:

800186

Access Restriction:

Restricted for use by site license