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A Study on the PM Oxidation Characteristics of Electrical Heater DPF System  

Ham, Yun-Young (Department of Automotive Engineering, Woosuk University)
Kim, Dae-Ha (Blue Planet Co., Ltd.,)
Kim, Kyung-Woon (Blue Planet Co., Ltd)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.1, 2006 , pp. 183-190 More about this Journal
Abstract
For continuously regenerative PM collecting system which adopted thermally stable SiC DPF and electrical heater which was placed upstream of the filter and driven by well constructed control logic, PM oxidation characteristics were investigated varying air flow rate, amounts of PM accumulated on the DPF and filter inlet temperature in order to get optimized PM regeneration performance. This study showed that the operating condition of air flow rate 70 lpm, high PM loading around 30g and filter inlet temperature $700^{\circ}C$ with heat insulation was effective in achieving high regeneration efficiency. Also, in this condition, we could decrease the electric energy consumption by reducing the regeneration time.
Keywords
Diesel particulate filter; Regeneration; Regeneration efficiency; Electrical heater; Electric energy; Air flow rate; Trapped PM mass; Filter inlet temperature;
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