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Uncontrolled Regeneration Characteristics of SiC DPFs using DPF Test Rig  

Oh, Kwang-Chul (Environmental Parts R&D Center, Korea Automotive Technology Institute)
Lee, Chun-Hwan (Environmental Parts R&D Center, Korea Automotive Technology Institute)
Cho, Taik-Dong (Department of Mechanical Design Engineering, Chungnam National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.16, no.2, 2008 , pp. 80-86 More about this Journal
Abstract
Uncontrolled regeneration characteristics of two different type SiC DPFs(diesel particulate filters) were investigated by DPF test rig devised to facilitate DPF evaluation, especially for regeneration and MSL(maximum soot loading) test similar to engine dynamometer test. In order to estimate the limits of maximum filter temperature and temperature gradient causing filter fracture, such as crack or whitening, the temperature distributions inside the filter were measured by thermocouples. The maximum filter temperature was observed near the rear plane of central filter region due to heat accumulation by exothermic reaction of PM but the maximum temperature gradient occurred at the boundary of high filter temperature. These two parameters induced the different SiC DPFs to fracture with different modes, whitening and crack.
Keywords
Uncontrolled regeneration; SiC DPF; MSL; Whitening; DPF test rig; Maximum filter temperature;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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