Comparative Study of Two Pressure Difference Control Methods in Contaminated Rooms Based on CFD Simulation

DOI

10.2991/978-94-6463-658-1_92How to use a DOI?

Keywords

Pressure Control; Infiltration Air; CFD; Air distribution

Abstract

The pressure difference control is realized by the pressure drop when the room infiltration air passes through the room opening such as the door crack, and its effect is determined by the room air distribution and the geometric characteristics of the opening. In this paper, two kinds of air distribution are used to achieve pressure difference control for two kinds of polluted room and corridor layout. With building the contaminated room models, CFD simulation technology was used to simulate the pressure difference between the room and the corridor and the directional airflow through the opening under different room opening forms, and on this basis, the role and applicable characteristics of the two ways of pollutant control are discussed. The simulation results show that if the room is well sealed, a small amount of infiltration air volume can produce enough pressure difference through the crack of the door, but it is easy to cause the diffusion of pollutants when the door is opened; when the opening is set on the wall, a large amount of infiltration air is needed to produce enough pressure difference, but it is more beneficial to control the diffusion of pollutants when the door is opened.

Copyright

© 2025 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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TY  - CONF
AU  - Yunzhe Ji
AU  - Xiaojie Wang
AU  - Jintian Li
PY  - 2025
DA  - 2025/03/03
TI  - Comparative Study of Two Pressure Difference Control Methods in Contaminated Rooms Based on CFD Simulation
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 880
EP  - 886
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_92
DO  - 10.2991/978-94-6463-658-1_92
ID  - Ji2025
ER  -