Ultra Thinwall Light-off Performance - Varying Substrates, Catalysts, and Flow Rates; Models and Engine Testing

Hughes, Katherine W.; Flörchinger, Peter

doi:10.4271/2002-01-0352

Cited by 16 publications

(2 citation statements)

References 3 publications

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“…Advantages of thin wall and ultra-thin wall cordierite substrate supports for catalyst coatings have been evaluated in fair detail since their introduction [1][2][3][4][5][6][7][8]. While these substrates provide significant benefits such as low back pressure, faster light-off and increased geometric surface area, one attribute of these aforementioned products that can benefit from an improvement is their overall strength.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Stronger Ultra Thin Wall Corning Substrate for Improved Performance

Lakhwani¹,

Hughes²

2005

SAE Technical Paper Series

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Current trends in automotive emissions control have tended towards reduced mass substrates for improved light-off performance coupled with a reduction in PGM levels. This trend has led to increasingly thinner walls in the substrates and increased open frontal areas, with a potential of reducing the overall mechanical strength of the substrate relative to the thicker walled lower cell density supports. This change in demand driven technology has also led to developments, at times costly, in the processing of the catalytic converter system. Changes in mat materials, handling technology and coating variables are only a few sources of overall increased system costs. Corning has introduced the Celcor ® XS™ product to the market which significantly increases the strength of thin and ultra thin walled substrates. A thorough evaluation of these products leads us to believe that the new substrate provides significant potential advantages and benefits to the entire supply chain as well as to the OEMs. The current paper will address some of these evaluations and describe some of the benefits associated with the design utilized.

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Section: Introductionmentioning

confidence: 99%

Evaluation of a Stronger Ultra Thin Wall Corning Substrate for Improved Performance

Lakhwani¹,

Hughes²

2005

SAE Technical Paper Series

Self Cite

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“…The arrangement of the channels has a primary potential to alter the conversion efficiency [16]. It is possible to increase the exhaust gas to catalytic area by increasing the cell density and enhance the heat and mass transfer in the channels by reducing the cell hydraulic diameter [17]. Combined with the use of thinner walls also minimises the substrate mass so that the warm-up is accelerated [18] and can provide benefits in inertial pressure drop contributions [19].…”

mentioning

confidence: 99%