Electrostatic Removal of Diesel Particulate Matter

Electrostatic Removal of Diesel Particulate Matter

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Diesel engines are the most efficient internal combustion engines. The high concentration and carcinogenicity of diesel particulate matter, however, help impede universal use of these engines in passenger vehicles, and diesel powered machinery in the workplace has been linked to occupational cancers. Methods developed so far to reduce diesel particulate matter emissions have focused on the use of mechanical filters and/or catalysts. Even the most advanced diesel particulate filters create a backpressure which can result in increased fuel consumption. In addition, filters need to be regenerated periodically to reduce back pressure and prevent plugging. A regeneration method applicable to all diesel engine applications has not been developed. The primary objectives of this study were to develop a technique to reduce diesel particulate matter emissions into the environment and into the workplace, and to investigate electrostatic precipitation to capture diesel particulate matter. Electrostatic precipitators have been widely used in industry for more than a century, but they have not been successfully miniaturized for particulate removal from mobile sources or diesel powered machinery.(a), (b), and (c) are negative corona currents, (d), (e), and (f) are positive corona currents 69 4.4 Calculated mobility versus plate-to-plate distance in small-scale ESPs 72 4.5 Voltage-current relationships for different wire diameters - negativeanbsp;...

Title:Electrostatic Removal of Diesel Particulate Matter
Author: Ali Farnoud
Publisher:ProQuest - 2008

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