Catalytic Converter Design Incorporating Dynamic Can Deformation

2002 ◽  
Author(s):  
Mauro K. Tagomori ◽  
David J. Fan ◽  
Larry Geer ◽  
Loren O. Black ◽  
Andrew J. Montalbano ◽  
...  
Keyword(s):  
Catalytic Converter ◽  
Converter Design

scholarly journals A new hollow fibre catalytic converter design for sustainable automotive emissions control

2019 ◽  
Vol 120 ◽  
pp. 86-90 ◽  
Author(s):  
Nur Izwanne Mahyon ◽  
Tao Li ◽  
Ricardo Martinez-Botas ◽  
Zhentao Wu ◽  
Kang Li
Keyword(s):  
Catalytic Converter ◽  
Hollow Fibre ◽  
Emissions Control ◽  
Automotive Emissions ◽  
Converter Design

Modelling study of flue gas flow pattern with pressure, amount and shape variation catalytic converter

2020 ◽  
Vol 1 (103) ◽  
pp. 5-17
Author(s):  
A. Ghofur ◽  
H. Isworo ◽  
R. Subagyo ◽  
M. Tamjidillah ◽  
R. Siswanto ◽  
...  
Keyword(s):  
Flow Pattern ◽  
Gas Flow ◽  
Catalytic Converter ◽  
Flow Patterns ◽  
Gas Absorption ◽  
Exhaust Gas ◽  
Shape Variation ◽  
Turbulence Flow ◽  
Converter Design ◽  
Practical Implications

Purpose: The purpose of this study is to analyse the modelling of exhaust gas flow patterns with variations in pressure, number, and shape of filters on the catalytic converter. Design/methodology/approach: The research method used is a simulation using ANSYS, which starts by creating a converter catalytic model with pressure variations: (0.5-1.5 atm), number of filters: (2-5), and the form of filter-cut/filter-not-cut. Findings: The decrease in velocity is caused by non-uniform velocity in the exhaust gas flow that occurs when passing through a bend in the filter-cut that serves as a directional flow to create turbulence. Filter-cut type tends to have fluctuating pressure, turbulence flow pattern shape so that contact between filter and exhaust gas is more effective. Based on the analysis of flow patterns, the speed and pressure of the 5 filter-not-cut design at a pressure of 0.5 are the best, while at pressure (1-1.5 atm) the type 5 filter-cut is the best. Research limitations/implications: This study is limited to filter-not-cut and filter-cut types with variations in the number of filters: 2, 3, 4, and 5, and the inlet pressure between 0.5-1 atm. Practical implications: The practical implications of this study are to find a catalytic converter design that has advantages in the effectiveness of exhaust gas absorption. Originality/value: The results show that the filter-not-cut and filter-cut types have the best effectiveness in the number of 5 filters. Filter-not-cut at the pressure of 0.5 atm and filter-cut at pressure (1-1.5 atm).

A Comprehensive Model to Predict Three-Way Catalytic Converter Performance

2002 ◽  
Vol 124 (2) ◽  
pp. 421-428 ◽  
Author(s):  
T. Shamim ◽  
H. Shen ◽  
S. Sengupta ◽  
S. Son ◽  
A. A. Adamczyk
Keyword(s):  
Catalytic Converter ◽  
Exhaust System ◽  
Chemical Kinetic ◽  
System Behavior ◽  
Governing Equations ◽  
Engine Exhaust ◽  
Numerical Predictions ◽  
Heat Conservation ◽  
Emission System ◽  
Converter Design

This paper describes the development of a comprehensive mathematical and numerical model for simulating the performance of automotive three-way catalytic converters, which are employed to reduce engine exhaust emissions. The model simulates the emission system behavior by using an exhaust system heat conservation and catalyst chemical kinetic submodel. The resulting governing equations are solved numerically. Good agreements were found between the numerical predictions and experimental measurements under both steady-state and transient conditions. The developed model will be used to facilitate the converter design improvement efforts, which are necessary in order to meet the increasingly stricter emission requirements.

CATALYTIC CONVERTER DESIGN FOR MINIMISATION OF COLD-START EMISSIONS

1999 ◽  
Vol 173 (1) ◽  
pp. 53-77 ◽  
Author(s):  
STEFANIA TRONCI ◽  
ROBERTO BARATTI ◽  
ASTERIOS GAVRIILIDIS
Keyword(s):  
Catalytic Converter ◽  
Cold Start ◽  
Converter Design
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