Heat-Up Performance of Catalyst Carriers—A Parameter Study and Thermodynamic Analysis

Thomas Steiner, Daniel Neurauter, Peer Moewius, Christoph Pfeifer, Verena Schallhart and Lukas Moeltner
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Thomas Steiner: Department for Industrial Engineering and Management, Management Center Innsbruck, 6020 Innsbruck, Austria
Daniel Neurauter: Department for Industrial Engineering and Management, Management Center Innsbruck, 6020 Innsbruck, Austria
Peer Moewius: Department for Industrial Engineering and Management, Management Center Innsbruck, 6020 Innsbruck, Austria
Christoph Pfeifer: Institute for Chemical and Energy Engineering, University of Natural Resources and Life Sciences, 1180 Vienna, Austria
Verena Schallhart: Department for Industrial Engineering and Management, Management Center Innsbruck, 6020 Innsbruck, Austria
Lukas Moeltner: Department for Industrial Engineering and Management, Management Center Innsbruck, 6020 Innsbruck, Austria

Energies, 2021, vol. 14, issue 4, 1-28

Abstract: This study investigates geometric parameters of commercially available or recently published models of catalyst substrates for passenger vehicles and provides a numerical evaluation of their influence on heat-up behavior. Parameters considered to have a significant impact on the thermal economy of a monolith are: internal surface area, heat transfer coefficient, and mass of the converter, as well as its heat capacity. During simulation experiments, it could be determined that the primary role is played by the mass of the monolith and its internal surface area, while the heat transfer coefficient only has a secondary role. Furthermore, an optimization loop was implemented, whereby the internal surface area of a commonly used substrate was chosen as a reference. The lengths of the thin wall and high cell density monoliths investigated were adapted consecutively to obtain the reference internal surface area. The results obtained by this optimization process contribute to improving the heat-up performance while simultaneously reducing the valuable installation space required.

Keywords: catalytic converter; light-off; monolith; cell density; wall thickness; cordierite (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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