Sustainable Smoke Extraction System for Atrium: A Numerical Study

Martin Lyubomirov Ivanov, Wei Peng, Qi Wang and Wan Ki Chow
Additional contact information
Martin Lyubomirov Ivanov: Academy of the Ministry of Interior, 1715 Sofia, Bulgaria
Wei Peng: School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
Qi Wang: Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China
Wan Ki Chow: Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China

Sustainability, 2021, vol. 13, issue 13, 1-22

Abstract: Smoke extraction systems, either static with natural ventilation, or dynamic with mechanical ventilation are required to keep smoke layer at high levels in many tall atria. It is observed that a design fire with high heat release rate (HRR) is commonly used for designing natural vents, but a low HRR is used for mechanical ventilation system. This will not produce a sustainable environment. There are no internationally agreed on design guides to determine the HRR in the design fire for different extraction systems and scenarios. This issue will be studied using a Computational Fluid Dynamics (CFD)-based software, the Fire Dynamics Simulator (FDS) version 6.7.1. Simulations on natural smoke filling, static and dynamic smoke extractions were carried out in a big example atrium. CFD-FDS predictions were compared with previous full-scale burning tests. Results confirmed that static smoke extraction is a good option for big fires, and a dynamic system is best for small fires. A sustainable new hybrid design combining the advantages of static and dynamic systems is proposed, which could result in a lower smoke temperature and higher smoke layer interface height, indicating a better extraction design.

Keywords: numerical simulation; smoke extraction system; atrium; natural vent; mechanical ventilation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/13/7406/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/13/7406/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:13:p:7406-:d:587140

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().