Lifetime Prediction of Wall-Flow Type Diesel Particulate Filters Using Fatigue Characteristics

Umehara, K.; Nakasuji, Yoshizumi

doi:10.4271/930128

Cited by 8 publications

(3 citation statements)

References 17 publications

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“…Following the developments of DPF models, the first stress analysis calculations involved 2D meshes (Umehara andNakasuji 1993 , Miyairi et al 2001 ), which evolved to 3D in the course of the last decade (Pontikakis et al 2002, Barataud et al 2003, Kuki et al 2004 ). Related to the mesh selection are the structural properties of the material.…”

Section: Coupling With Stress Analysis Codesmentioning

confidence: 99%

Catalyzed diesel particulate filter modeling

Koltsakis

Haralampous

Depcik

et al. 2013

Reviews in Chemical Engineering

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An increasing environmental concern for diesel particulate emissions has led to the development of efficient and robust diesel particulate filters (DPF). Although the main function of a DPF is to filter solid particles, the beneficial effects of applying catalytic coatings in the filter walls have been recognized. The catalyzed DPF technology is a unique type of chemical reactor in which a multitude of physicochemical processes simultaneously take place, thus complicating the tasks of design and optimization. To this end, modeling has contributed considerably in reducing the development effort by offering a better understanding of the underlying phenomena and reducing the excessive experimental efforts associated with experimental testing. A comprehensive review of the evolution and the most recent developments in DPF modeling, covering phenomena such as transport, fluid mechanics, filtration, catalysis, and thermal stresses, is presented in this article. A thorough presentation on the mathematical model formulation is given based on literature references and the differences between modeling approaches are discussed. Selected examples of model application and validation versus the experimental data are presented.

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Section: Coupling With Stress Analysis Codesmentioning

confidence: 99%

Catalyzed diesel particulate filter modeling

Koltsakis

Haralampous

Depcik

et al. 2013

Reviews in Chemical Engineering

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“…Stroia et al (2008) discussed durability test procedures for a diesel aftertreatment system consisting of DOC, LNT, and CDPF. DPF durability analysis on stress and fatigue life was conducted by Gulati et al (1992), Umehara and Nakasuji (1993) and Kuki et al (2004). Other DPF durability investigations were carried out by Locker et al (2002), Fayard et al (2005) …”

Section: Durability Of Diesel Oxidation Catalyst and Particulate Filtermentioning

confidence: 99%

Durability and reliability in diesel engine system design

Xin¹

2013

Diesel Engine System Design

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“…Under these conditions, the degree of fatigue was found to be quite small at 2.2%. The level of fatigue for cordierite, which is a commonly used engineering oxide ceramic, showed a fatigue level of about 15% after repetition of 10 3 times at normal ambient temperature [4]. It is well known that cracks will grow in brittle solids such as glass and ceramics at stresses that are lower than the threshold value at which unstable fracturing occurs.…”

Section: Making Process and The Feature Of Sic Porous Materials Produ...mentioning

confidence: 99%

A New Technology with Porous Materials; Progress in the Development of the Diesel Vehicle Business

Ohno¹

2008

KEM

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The long time of twenty years has passed since Diesel Particulate Filter (DPF) was proposed before the practical use. The main factors that DPF has been put to practical use in this time, are the same time proposal of the evaluation method of SiC porous materials linked to the performance on the vehicle, and that the nature of thermal shock required for the soot regeneration (combustion of soot) in the DPF is different from the conventional requirement for the rather rapid thermal shock. For the requirements, these include demonstrating utmost the characteristic of SiC’s high thermal conductivity, and overcoming the difficulty of thermal expansion of SiC-DPF by dividing the filter into segments binding with the cement of lower Young’s modulus, and the innovation of technology around the diesel exhaust system such as Common-Rail system. As the results of these, the cumulative shipments of SiC-DPF have reached about 5 million, and it goes at no claim in the market.

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Lifetime Prediction of Wall-Flow Type Diesel Particulate Filters Using Fatigue Characteristics

Cited by 8 publications

References 17 publications

Catalyzed diesel particulate filter modeling

Catalyzed diesel particulate filter modeling

Durability and reliability in diesel engine system design

A New Technology with Porous Materials; Progress in the Development of the Diesel Vehicle Business

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