Open Access
ARTICLE
Experimental Study on Gas Flow Uniformity in a Diesel Particulate Filter Carrier
Zhengyong Wang1, Jianhua Zhang2, Guoliang Su3, Peixing Yang4, Xiantao Fan4, Shuzhan Bai1, Ke Sun1,*, Guihua Wang1,*
1
School of Energy and Power Engineering, Shandong University, Jinan, 250061, China
2
State Key Laboratory of Engines, Tianjin University, Tianjin, 300072, China
3
Weichai Power Emission Solutions Technology Company Limited, Weifang, 261043, China
4
China·Shandong·YYO Emission Control System Co., Ltd., Liaocheng, 252100, China
* Corresponding Authors: Ke Sun. Email: ; Guihua Wang. Email:
Fluid Dynamics & Materials Processing 2024, 20(1), 193-204. https://doi.org/10.32604/fdmp.2023.030561
Received 12 April 2023; Accepted 08 June 2023; Issue published 08 November 2023
Abstract
A Diesel Particulate Filter (DPF) is a critical device for diesel engine exhaust products treatment. When using
active-regeneration purification methods, on the one hand, a spatially irregular gas flow can produce relatively
high local temperatures, potentially resulting in damage to the carrier; On the other hand, the internal temperature field can also undergo significant changes contributing to increase this risk. This study explores the gas flow
uniformity in a DPF carrier and the related temperature behavior under drop-to-idle (DTI) condition by means of
bench tests. It is shown that the considered silicon carbide carrier exhibits good flow uniformity, with a temperature deviation of no more than 2% with respect to the same radius measurement point at the outlet during the
regeneration stage. In the DTI test, the temperature is relatively high within r/2 near the outlet end, where the
maximum temperature peak occurs, and the maximum radial temperature gradient is located between r/2 and
the edge. Both these quantities grow as the soot load increases, thereby making the risk of carrier burnout greater.
Finally, it is shown that the soot load limit of the silicon carbide DPF can be extended to 11 g/L, which reduces the
frequency of active regeneration by approximately 40% compared to a cordierite DPF.
Keywords
Cite This Article
APA Style
Wang, Z., Zhang, J., Su, G., Yang, P., Fan, X. et al. (2024). Experimental study on gas flow uniformity in a diesel particulate filter carrier. Fluid Dynamics & Materials Processing, 20(1), 193-204. https://doi.org/10.32604/fdmp.2023.030561
Vancouver Style
Wang Z, Zhang J, Su G, Yang P, Fan X, Bai S, et al. Experimental study on gas flow uniformity in a diesel particulate filter carrier. Fluid Dyn Materials Process . 2024;20(1):193-204 https://doi.org/10.32604/fdmp.2023.030561
IEEE Style
Z. Wang et al., "Experimental Study on Gas Flow Uniformity in a Diesel Particulate Filter Carrier," Fluid Dyn. Materials Process. , vol. 20, no. 1, pp. 193-204. 2024. https://doi.org/10.32604/fdmp.2023.030561