Investigation of electrically heating catalytic converter flow and temperature field performance improvement based on field synergy

Qingsong Zuo, Qiming Li, Xiaomei Yang, Wei Chen, Guohui Zhu, Zhuang Shen, Yong Xie and Yuanyou Tang

Energy, 2023, vol. 274, issue C

Abstract: To effectively improve the flow field uniformity inside the catalytic converter and the purification performance at low temperature, a new model of electrically heating multi-carrier catalytic converter is proposed. In this paper, the computational fluid dynamics (CFD) method is used to compare the performance of the conventional and optimized catalytic converter. Then, the effect of the working parameters on the internal temperature and NO conversion of the optimized catalytic converter is investigated. Finally, the synergistic relationship between the temperature gradient field and the flow field is explored by using the field synergy principle. The results of the study are as follows: (1) Compared with the conventional maximum gas uniformity index, the optimized catalytic converter is 0.0515 higher and the NO conversion is 14.07% higher; (2) With the increase of power, the flow rate, temperature and the NO conversion rate first increased and then decreased. With the increase of oxygen concentration, the NO conversion rate continued to increase; (3) Due to the shape and structure of the heater, the temperature gradient field and flow field angle cos β The region of −1 appears in the middle of the carrier, cos β 1 area appears in the front.

Keywords: Catalytic converter; Electric heating; Multi-carrier; Gas uniformity; Field synergy (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544223007545
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:274:y:2023:i:c:s0360544223007545

DOI: 10.1016/j.energy.2023.127360

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().