A Laboratory Combustion Study of Diesel Particulates Containing Metal Additives General Motors Research Laboratories, Physical Chemistry Dept., Warren, MI

Format:

Conference/Event

Author/Creator:

McCabe, Robert W., author.

Conference Name:

SAE International Congress & Exposition (1986-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1986

Summary:

Diesel soot samples, containing Cu, Pb, or mixed Mn-Cu additives, were generated in 4.3 and 5.7 L engines under idle and 65 km/h road-load conditions. The soot was collected on ceramic fiber filters, samples of which were subsequently transferred to a controlled atmosphere laboratory flow reactor for analysis of soot oxidation characteristics. Ignition temperatures and propagation speed of the combustion zone were measured by infrared pyrometry and photography, respectively, as a function of additive type, O2 concentration, and gas flow rate. Soot containing Cu additive showed the lowest ignition temperature in room air (ca 300 C). A mathematical analysis is presented which predicts the effects of O2 concentration and superficial velocity on ignition temperature. The model demonstrates that the most important heat transfer terms affecting the ignition temperature are those of convection and heat of reaction (as controlled by the rate of O2 supply)

Notes:

Vendor supplied data

Publisher Number:

860011

Access Restriction:

Restricted for use by site license