Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)

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Simulation and Optimization of Flow-guide Devices in Centralized Exhaust System

Authors
Xiaoming Zhang1, Shiyu Zhao1, *, Haotian Zhang1, Yinghan Ma1
1Shenyang Jianzhu University, Shenyang, Liaoning, 110000, China
*Corresponding author. Email: 15942003101@163.com
Corresponding Author
Shiyu Zhao
Available Online 19 May 2025.
DOI
10.2991/978-94-6463-728-1_63How to use a DOI?
Keywords
Flow-guide device; Centralized exhaust system; Local resistance; Ventilation; Numerical simulation
Abstract

Centralized exhaust system commonly used in high-rise residential buildings. Kitchens are the focal point in the design of ventilation. In order to solve the problems of oil fumes reflux and odor migration, simulation studies are carried out on the uniform ventilating duct and variable pressure ventilating duct. This study takes a 30-storey building as an example, uses the computational fluid dynamics (CFD) method to analyze the flow characteristics of the duct and combines the changing law of the local resistance coefficient of the flow-guide device to realize the optimal parameter selection. The results indicate that the flow-guide device has the role of induced flow, which is favorable to improve the capacity to exhaust fumes, and is more suitable for the conditions of high operating rate. The size of the flow-guide device should meet the ratio of the area with the main flue between 0.061–0.074 for the best smoke exhaustion effect, and the minimum smoke extraction increases by 9.95%-12.76%.

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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Volume Title
Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
Series
Advances in Engineering Research
Publication Date
19 May 2025
ISBN
978-94-6463-728-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-728-1_63How to use a DOI?
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.

Cite this article

risenwbib
TY  - CONF
AU  - Xiaoming Zhang
AU  - Shiyu Zhao
AU  - Haotian Zhang
AU  - Yinghan Ma
PY  - 2025
DA  - 2025/05/19
TI  - Simulation and Optimization of Flow-guide Devices in Centralized Exhaust System
BT  - Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
PB  - Atlantis Press
SP  - 677
EP  - 685
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-728-1_63
DO  - 10.2991/978-94-6463-728-1_63
ID  - Zhang2025
ER  -