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

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Simulation Analysis and Experimental Study on the Effect of Valve Opening on Flow Measurement Based on Micro-channel

Authors
Xin-ju Fu1, 2, *, Ping Wang1, 2, Yong Li1, 2, Zhao-xin Shi1, 2, Xu-dong Wang1, 2, Tai-zeng Lv1, 2
1Beijing Institute of Control Engineering, Beijing, 100190, China
2Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion Technology, Beijing, 100190, China
*Corresponding author. Email: oranged1113@126.com
Corresponding Author
Xin-ju Fu
Available Online 7 December 2022.
DOI
10.2991/978-94-6463-022-0_28How to use a DOI?
Keywords
Thermal mass flow controller; Microfluidic channel; Valve opening; Flow measurement
Abstract

Thermal mass flow controllers use capillary tubes to form fluid channels. For microfluidic channel smaller than 1 mm, in the supercritical state, the pressure difference between the inlet and the outlet is large, resulting in obvious changes in fluid density. At the same time, the increase of the pressure gradient will cause the fluid cannot reach the fully developed stage of flow quickly. Therefore, in the flow analysis and heat transfer analysis, the microfluidic channel is quite different from the conventional scale channel. Based on the 0.34 mm capillary microfluidic channel, this paper analyzes the influence of the downstream valve opening on fluid flow and heat transfe. It can be seen from the simulation analysis and experimental data that the larger the opening of valve is, the lower the back pressure of the capillary channel is. Due to the accelerating state of fluid, the fully developed convective heat transfer and incompressible flow state are damaged, thereby affecting the real-time flow measured by the heating wire wrapped around the capillary.

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.

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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_28
ISSN
2589-4943
DOI
10.2991/978-94-6463-022-0_28How 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  - Xin-ju Fu
AU  - Ping Wang
AU  - Yong Li
AU  - Zhao-xin Shi
AU  - Xu-dong Wang
AU  - Tai-zeng Lv
PY  - 2022
DA  - 2022/12/07
TI  - Simulation Analysis and Experimental Study on the Effect of Valve Opening on Flow Measurement Based on Micro-channel
BT  - Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)
PB  - Atlantis Press
SP  - 317
EP  - 332
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-022-0_28
DO  - 10.2991/978-94-6463-022-0_28
ID  - Fu2022
ER  -