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CFD Prediction and Experimental Validation of High-Temperature Thermal Behavior in Catalytic Converters
Technical Paper
1999-01-0454
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A comprehensive CFD-based modeling approach is applied to several automotive catalytic converters, with the objective of predicting thermal behavior under steady-state, high-load conditions. Specialized computational models are used to account for effects of heat and mass transfer in the monolith, oxidation reactions, heat generation, conjugate heat transfer in the various converter materials, and radiation heat transfer. These various physical considerations are assembled in a comprehensive CFD model, which is solved using state-of-the-art computational techniques. Detailed temperature measurements, taken in engine-cell experiments at Ohio State University's Center for Automotive Research, are used to validate the CFD models. Excellent agreement seen between measured and computed temperatures, both inside the converter assembly and on the outer shell. Trends in the predictions and experiments are discussed, with the aim of understanding the physical mechanisms of heat transfer in monolithic catalytic converters. An increased understanding of these heat transfer mechanisms can be used to improve converter durability at high temperatures.
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Citation
Taylor, W., "CFD Prediction and Experimental Validation of High-Temperature Thermal Behavior in Catalytic Converters," SAE Technical Paper 1999-01-0454, 1999, https://doi.org/10.4271/1999-01-0454.Also In
Gas Direct Injection Aftertreatment and Exhaust Aftertreatment Modeling
Number: SP-1455; Published: 1999-03-01
Number: SP-1455; Published: 1999-03-01
References
- Young Findlayson “Mathematical Modeling of the Monolith Catalytic Converter - Part 1: Development of Model and Application of Orthogonal Collocation” AIChE Journal 22 331 1976
- Sherony Solbrig “Analytical Investigation of Heat and Mass Transfer Friction Factors in a Corrugated Duct Heat or Mass Exchanger,” International Journal of Heat and Mass Transfer 13 1455 1970
- Voltz Morgan Liederman Jacob “Kinetic Study of Carbon Monoxide and Propylene Oxidation on a Platinum Catalyst.” Industrial and Engineering Chemistry: Product Research and Development 12 4 1973
- Heck Wei Katzer “Mathematical Modeling of Automotive Catalysts” AIChE Journal 22 447 1976
- Oh Cavendish “Transients of Monolithic Catalytic Converters: Response to a Step Change in Free-Stream Temperatures as Related to Controlling Automobile Emissions,” Industrial and Engineering Chemistry: Product Research and Development 21 29 1982
- Siemund Schweich Leclerc Villermaux “Modeling 3-way Catalytic Converter: Comparison Between Simulation and Experimental Data,” Studies in Surface Science and Catalysis 96 Elsiever Science B.V. 1995
- Schweich “Laboratory Data for Three-Way Catalytic Converter Modeling,” Studies in Surface Science and Catalysis 96 Elsiever Science B.V. 1995
- Chen Oh Bishop Van Ostrom “A Three-Dimensional Model for the Analysis of Transient Thermal and Conversion Characteristics of Monolithic Catalytic Converters,” SAE Paper 880282 1988
- Chen Cole “Numerical Simulation and Experimental Verfication of Conversion and Thermal Responses for a Pt/Rh Metal Monolithic Converter,” SAE Paper 890798 1989
- Wendland Matthes “Visualization of Automotive Catalytic Converter Internal Flows,” SAE Paper 861554 1986
- Wendland Sorrell Kreucher “Source of Monolithic Catalytic Converter Pressure Loss,” SAE Paper 912372 1991
- Benjamin Clarkson Haimad Girgis “An Experimental and Predictive Study of the Flow Field in Axi-symmetric Automotive Exhaust Catalyst Systems,” SAE Paper 961208 1996
- Weltens Bressler Terres Neumaier Rammoser “Optimisation of Catalytic Converter Gas Flow Distribution by CFD Prediction,” SAE Paper 930790 1993
- Lai Kim Cheng Chui Pakko “Three-Dimensional Simulations of Automotive Catalytic Converter Internal Flow,” SAE Paper 910200 1991
- Shah London “Laminar Forced Convection Heat Transfer and Flow Friction in Straight and Curved Ducts - A Summary of Analytical Solutions,” Technical Report #75 Department of Mechanical Engineering, Stanford University 1972
- Ullah Waldram Bennet Truex “Monolithic Reactors: Mass Transfer under Reacting Conditions,” Chemical Engineering Science 47 9-11 2413
- Vortruba Mikus Khue Nguen Hlavacek Skrivanek “Heat and Mass Transfer in Honeycomb Catalysts II” Chemical Engineering Science 30 201 206
- Norris Reynolds “Turbulent Channel Flow With Moving Wavy Boundary,” Report FM-10 Department of Mechanical Engineering, Stanford University
- Star-CD Users Manual, Version 3.0c Computational Dynamics Limited 1996
- Clarkson “The Simulation of the Heat Transfer, Chemical Reactions and Fluid Flow Within a Catalytic Converter,” Star-CD Internal Report 1996
- Clarkson “The Implementation of a Reacting Catalyst Model Within Star-CD,” Star-CD Internal Report 1996
- Bird Stewart Lightfoot Transport Phenomena J. Wiley & Sons New York 1960