Key design and layout factors influencing performance of three-way catalytic converters: Experimental and semidecoupled numerical study under real-life driving …

B Deng, Z Chen, C Sun, S Zhang, W Yu… - Journal of Cleaner …, 2023 - Elsevier
The optimization of three-way catalyst (TWC) design and layout is important for reducing
mobile source emissions and requires numerical modeling. To date, the high computational …

An experimental and kinetic modeling study of aging impact on surface and subsurface oxygen storage in three-way catalysts

J Gong, D Wang, J Li, K Kamasamudram, N Currier… - Catalysis Today, 2019 - Elsevier
The aging impact on oxygen storage capacity (OSC) of three-way catalyst was investigated
through experiments and modeling. OSC measurements were conducted on two …

Low content Pt-doped CeO2 and core-shell type CeO2/ZrO2 model catalysts; microstructure, TPR and three way catalytic activities

M Ozawa, M Misaki, M Iwakawa, M Hattori… - Catalysis Today, 2019 - Elsevier
Abstract Core-shell type CeO 2/ZrO 2 (csCZ) support was investigated as a novel item for
reducing platinum content in three way catalysts (TWC). A composite csCZ support was …

[HTML][HTML] Comparative Analysis of Time Series Neural Network Methods for Three-Way Catalyst Modeling

Z Yao, T Chen, W Lin, Y Feng, Z Wei - Energy and AI, 2024 - Elsevier
Abstract Relative Oxygen Level of the Three-Way Catalyst is an important parameter that
affects the conversion efficiency of pollutants. ROL is a time-varying hidden state variable …

Modelling three-way catalytic converter oriented to engine cold-start conditions

M Real, R Hedinger, B Pla… - International Journal of …, 2021 - journals.sagepub.com
This article introduces a physical model of a three-way catalytic converter oriented to engine
cold-start conditions. Computational cost is an important factor, particularly when the …

Prediction of emission and performance of internal combustion engine via regression deep learning approach

S Soltanalizadeh, MRH Yazdi… - Proceedings of the …, 2024 - journals.sagepub.com
Strict environmental laws increase the importance of reducing emissions. While; improving
three-way catalyst (TWC) technology can help reduce emission levels, attention should also …

Optimal exhaust valve opening control for fast aftertreatment warm up in diesel engines

R Salehi, AG Stefanopoulou - Dynamic Systems …, 2018 - asmedigitalcollection.asme.org
This paper proposes to optimally adjust the exhaust valve opening (EVO) timing for faster
selective catalytic reduction (SCR) aftertreatment system warm-up during the cold start …

Oxygen storage modeling of a three-way catalyst based on a NARX network

Z Yao, T Chen, W Lin, Y Feng, R Xia, L Li… - Catalysis Science & …, 2023 - pubs.rsc.org
The oxygen storage in a Three-Way Catalyst (TWC) influences the removal efficiency of
pollutants when the exhaust gas concentration deviates from the equivalence ratio. To …

Design and experimental validation of three way catalyst age estimator and Fisher information analysis for optimal sensor selection

S Gelmini, MA Hoffmann, S Onori - Control Engineering Practice, 2021 - Elsevier
Three way catalysts (TWCs) are installed downstream of internal combustion engines to
mitigate the engine out pollutants generated from combustion. Accurate engine control …

Reduced order model design for three way catalytic converter temperature dynamics

R Godi, S Onori - … IEEE Conference on Control Technology and …, 2017 - ieeexplore.ieee.org
This paper presents a reduced order model for three way catalyst (TWC) temperature
dynamics developed using Proper Orthogonal Decomposition (POD) and Galerkin …