Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)

<Previous Article In Volume
Next Article In Volume>

Investigation on Internal Flow Characteristics of a Pressure-Driven Swirling Injector for Urea-SCR System

Authors
Youcheng Shi1, *, Zheng Li1, Wenbin Cao1, Qingzhen Dong2
1College of Energy and Power Engineering, Lanzhou University of Technology, 287 Langongping Road, Lanzhou, China
2Ocean University of China, Qingdao, China
*Corresponding author. Email: shiyc@lut.edu.cn
Corresponding Author
Youcheng Shi
Available Online 7 December 2022.
DOI
10.2991/978-94-6463-022-0_32How to use a DOI?
Keywords
Urea injector; Internal flow; Pressure; Discharge coefficient; Urea selective catalytic reduction (Urea-SCR) system
Abstract

A pressure-driven swirling injector for Urea-SCR system was presented and investigated. It consists of a switch valve and orifice. To investigate the dynamic and internal flow characteristics of the injector, a FSI model was proposed. Numerical analysis suggested that the flowrates of the injector under different inlet pressure were close to the test results. The deviations between the simulated and tested flowrate at different inlet pressure were less than 2%. It is demonstrated that the proposed simulation model was efficient to simulate a full working process of the injector. When the inlet pressure increased from 0.5 to 1.3 MPa, the discharge coefficients of the injector increased lightly. When the length-diameter ratio increased from 0.5 to 2.5, the discharge coefficients of the injector decreased lightly. When the eccentricity of swirl channel increased from 0.28 to 2.23, the discharge coefficients of the injector remained unchanged. The results showed that the inlet pressure and structural parameters of the injector have relatively little influence on the discharge coefficient. The results can provide a theoretical basis for the design of the similar injector.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)
Series
Atlantis Highlights in Engineering
Publication Date
7 December 2022
ISBN
10.2991/978-94-6463-022-0_32
ISSN
2589-4943
DOI
10.2991/978-94-6463-022-0_32How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Youcheng Shi
AU  - Zheng Li
AU  - Wenbin Cao
AU  - Qingzhen Dong
PY  - 2022
DA  - 2022/12/07
TI  - Investigation on Internal Flow Characteristics of a Pressure-Driven Swirling Injector for Urea-SCR System
BT  - Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)
PB  - Atlantis Press
SP  - 376
EP  - 392
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-022-0_32
DO  - 10.2991/978-94-6463-022-0_32
ID  - Shi2022
ER  -