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Modelling the Thermal Operation in a Catalytic Converter of an Automobile's Exhaust

In: Mathematical Modeling, Simulation, Visualization and e-Learning

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  • O. D. Makinde

Abstract

Catalytic converter in an automobile's exhaust system is made up of a finely divided platinum—iridium catalyst (i.e.forming a porous matrix)and provides a platform for exothermic chemical reaction where unburned hydrocarbons completely combust.In this paper, the steady-state solutions of a strongly exother-mic reaction of a viscous combustible fluid (fuel)in a catalytic converter-modelled as a cylindrical pipe filled with a saturated porous medium under Arrhenius kinetics, neglecting reactant consumption, are presented.The Brinkman flow model is employed.Having known the velocity distribution, the nonlinear energy equation is solved using a perturbation technique together with a special type of Hermite—Padé approximants and the important properties of the temperature field including bifurcations and thermal criticality are discussed.

Suggested Citation

  • O. D. Makinde, 2008. "Modelling the Thermal Operation in a Catalytic Converter of an Automobile's Exhaust," Springer Books, in: Dialla Konaté (ed.), Mathematical Modeling, Simulation, Visualization and e-Learning, pages 51-61, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-74339-2_4
    DOI: 10.1007/978-3-540-74339-2_4
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