Evaluation of a zone model for fire safety engineering in large spaces
Johansson, Nils LU
(2021)
In Fire Safety Journal
120.
- Abstract
- Thanks to simple and straightforward calculation methods it is rather easy to estimate gas temperatures in small- or medium sized enclosures; however, the problem becomes more complex if fire safety analyses are to be performed in large spaces where the hot gas layer cannot be regarded as uniform. Using a multi-zone modelling concept could be a good alternative for such situations. However, few such models exist and the evaluation of the concept is scarce. This paper is therefore dedicated to study the multi-zone modelling concept and its usefulness in fire safety engineering by comparing results from such a model with results from a more established numerical method as well as experimental data. The results indicate that the multi-zone... (More)
- Thanks to simple and straightforward calculation methods it is rather easy to estimate gas temperatures in small- or medium sized enclosures; however, the problem becomes more complex if fire safety analyses are to be performed in large spaces where the hot gas layer cannot be regarded as uniform. Using a multi-zone modelling concept could be a good alternative for such situations. However, few such models exist and the evaluation of the concept is scarce. This paper is therefore dedicated to study the multi-zone modelling concept and its usefulness in fire safety engineering by comparing results from such a model with results from a more established numerical method as well as experimental data. The results indicate that the multi-zone model gives reasonable estimates of gas temperatures in well-ventilated large spaces. It is also concluded that there is a potential for the multi-zone concept to be a complement to more advanced numerical modelling methods like Computational Fluid Dynamics. (Less)
- Abstract (Swedish)
- Thanks to simple and straightforward calculation methods it is rather easy to estimate gas temperatures in small- or medium sized enclosures; however, the problem becomes more complex if fire safety analyses are to be performed in large spaces where the hot gas layer cannot be regarded as uniform. Using a multi-zone modelling concept could be a good alternative for such situations. However, few such models exist and the evaluation of the concept is scarce. This paper is therefore dedicated to study the multi-zone modelling concept and its usefulness in fire safety engineering by comparing results from such a model with results from a more established numerical method as well as experimental data. The results indicate that the multi-zone... (More)
- Thanks to simple and straightforward calculation methods it is rather easy to estimate gas temperatures in small- or medium sized enclosures; however, the problem becomes more complex if fire safety analyses are to be performed in large spaces where the hot gas layer cannot be regarded as uniform. Using a multi-zone modelling concept could be a good alternative for such situations. However, few such models exist and the evaluation of the concept is scarce. This paper is therefore dedicated to study the multi-zone modelling concept and its usefulness in fire safety engineering by comparing results from such a model with results from a more established numerical method as well as experimental data. The results indicate that the multi-zone model gives reasonable estimates of gas temperatures in well-ventilated large spaces. It is also concluded that there is a potential for the multi-zone concept to be a complement to more advanced numerical modelling methods like Computational Fluid Dynamics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/bb2e4d5a-6f7d-4b5a-8a5c-e58472578449
- author
- Johansson, Nils
LU
- organization
- publishing date
- 2021-03-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Modelling, Performance-based design, Compartment fires
- in
- Fire Safety Journal
- volume
- 120
- article number
- 103122
- publisher
- Elsevier
- external identifiers
-
- scopus:85084435811
- ISSN
- 0379-7112
- DOI
- 10.1016/j.firesaf.2020.103122
- language
- English
- LU publication?
- yes
- id
- bb2e4d5a-6f7d-4b5a-8a5c-e58472578449
- date added to LUP
- 2020-05-13 09:36:47
- date last changed
- 2022-04-18 22:17:22
@article{bb2e4d5a-6f7d-4b5a-8a5c-e58472578449,
abstract = {{Thanks to simple and straightforward calculation methods it is rather easy to estimate gas temperatures in small- or medium sized enclosures; however, the problem becomes more complex if fire safety analyses are to be performed in large spaces where the hot gas layer cannot be regarded as uniform. Using a multi-zone modelling concept could be a good alternative for such situations. However, few such models exist and the evaluation of the concept is scarce. This paper is therefore dedicated to study the multi-zone modelling concept and its usefulness in fire safety engineering by comparing results from such a model with results from a more established numerical method as well as experimental data. The results indicate that the multi-zone model gives reasonable estimates of gas temperatures in well-ventilated large spaces. It is also concluded that there is a potential for the multi-zone concept to be a complement to more advanced numerical modelling methods like Computational Fluid Dynamics.}},
author = {{Johansson, Nils}},
issn = {{0379-7112}},
keywords = {{Modelling; Performance-based design; Compartment fires}},
language = {{eng}},
month = {{03}},
publisher = {{Elsevier}},
series = {{Fire Safety Journal}},
title = {{Evaluation of a zone model for fire safety engineering in large spaces}},
url = {{https://lup.lub.lu.se/search/files/79661358/Pre_print_final_version.pdf}},
doi = {{10.1016/j.firesaf.2020.103122}},
volume = {{120}},
year = {{2021}},
}