A Study of the Regeneration Process in Diesel Particulate Traps Using a Copper Fuel Additive

Numerical design of the diesel particulate filter for optimum thermal performances during regeneration

“…Firstly, the regeneration technique of pure thermal oxidation without a catalyst-assist is validated by the experimental results of Miyairi to show a basic prediction performance of thermal regenerating behavior under steady-state engine operating conditions (Case 1). Secondly, the simulated results are also compared with those measured values of Tan et al [9]. This comparison allows a verification of the accuracy of the present one-channel model in reproducing regenerating behaviors using fuel additives in a heavy-duty vehicle application (Case 2).…”

“…These efforts have largely been in good agreement with the experimental results. Tan et al [9] experimentally studied the variations of pressure drop of the DPF due to regeneration and regeneration-induced failure modes. Awara et al [19] investigated the effect of fuel additives on pressure drop of the DPF and chemical reaction kinetics.…”

“…After the full load is reached, the load is stabilized at the full load under high speed mode or the engine is cut to idle at that point under city driving mode [9]. The initial temperature, mass flow rate, and oxygen concentration of the exhaust gas inflowing into the DPF for heavy-duty vehicle applications used in this study are shown in Fig.…”

“…Consequently, one-dimensional models have been recently accepted as a more valuable modeling tool in the field of aftertreatment system design applications that require rapid feedback. Experimental validation has been performed using available experimental data in the literature [9,10]. In the present work, the single channel model was adopted and the influences of various geometric design factors relating to the substrate such as the ratio of diameter to length in the same volume, cell density and wall thickness on regeneration characteristics and the thermal durability of the DPF were numerically studied under two real representative driving modes, high speed and city driving mode.…”

Catalyzed diesel particulate filter modeling

“…the early 1990s regarding the use of fuel additives for lowering the regeneration temperature of diesel particulate through catalysis (Harvey et al 1994, Tan et al 1996. Koltsakis and Stamatelos (1996a,b) take these concepts and further expand their model to account for catalytic reduction of PM due to metal oxide fuel additive combustion (clarified the following year by Koltsakis and Stamatelos 1997a,b ):…”