An evaluation of two methods to predict temperatures in multi-room compartment fires
Johansson, Nils LU
; Svensson, Stefan
LU
and Van Hees, Patrick
LU
(2015)
In Fire Safety Journal
77.
p.46-58
- Abstract
- The objective of this paper is to compare predictions with two hand-calculation methods with data from a small-scale two-room compartment fire experiment including 52 individual tests. The first method is based on two previously presented empirical models, and the second method consists of several calculation steps in order to solve a simple energy balance. The second method is based on the conservation of energy and mass and it performs as a simple two-zone model that can be used to get an estimate of the gas mass flow, hot-gas-layer temperature and interface height in the fire room and adjacent rooms.
An experimental setup consisting of two small rooms connected with an opening has been used to gather experimental... (More) - The objective of this paper is to compare predictions with two hand-calculation methods with data from a small-scale two-room compartment fire experiment including 52 individual tests. The first method is based on two previously presented empirical models, and the second method consists of several calculation steps in order to solve a simple energy balance. The second method is based on the conservation of energy and mass and it performs as a simple two-zone model that can be used to get an estimate of the gas mass flow, hot-gas-layer temperature and interface height in the fire room and adjacent rooms.
An experimental setup consisting of two small rooms connected with an opening has been used to gather experimental data. The size of the rooms, openings and fire source were varied in the experiment, which resulted in 16 unique experimental tests and each test was repeated at least three times.
A majority of the temperature predictions in the fire room with the two hand-calculations methods were within the bounds of the experimental uncertainty, and the predictions in the adjacent room had a similar accuracy. The hot-gas-layer interface height predictions, which were calculated with second method, were overall within the experimental uncertainty. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7757557
- author
- Johansson, Nils
LU
; Svensson, Stefan
LU
and Van Hees, Patrick
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Model uncertainty, Experimental uncertainty, Small-scale experiment, Multi-room compartment, Interface height, Hot-gas-layer temperature
- in
- Fire Safety Journal
- volume
- 77
- pages
- 46 - 58
- publisher
- Elsevier
- external identifiers
-
- wos:000361402100004
- scopus:84938915140
- ISSN
- 0379-7112
- DOI
- 10.1016/j.firesaf.2015.07.006
- language
- English
- LU publication?
- yes
- id
- 9497ec23-651b-48ff-a62d-86396cf5f6c6 (old id 7757557)
- date added to LUP
- 2016-04-01 13:08:17
- date last changed
- 2022-02-04 02:35:53
@article{9497ec23-651b-48ff-a62d-86396cf5f6c6,
abstract = {{The objective of this paper is to compare predictions with two hand-calculation methods with data from a small-scale two-room compartment fire experiment including 52 individual tests. The first method is based on two previously presented empirical models, and the second method consists of several calculation steps in order to solve a simple energy balance. The second method is based on the conservation of energy and mass and it performs as a simple two-zone model that can be used to get an estimate of the gas mass flow, hot-gas-layer temperature and interface height in the fire room and adjacent rooms.<br/><br>
<br/><br>
An experimental setup consisting of two small rooms connected with an opening has been used to gather experimental data. The size of the rooms, openings and fire source were varied in the experiment, which resulted in 16 unique experimental tests and each test was repeated at least three times.<br/><br>
<br/><br>
A majority of the temperature predictions in the fire room with the two hand-calculations methods were within the bounds of the experimental uncertainty, and the predictions in the adjacent room had a similar accuracy. The hot-gas-layer interface height predictions, which were calculated with second method, were overall within the experimental uncertainty.}},
author = {{Johansson, Nils and Svensson, Stefan and Van Hees, Patrick}},
issn = {{0379-7112}},
keywords = {{Model uncertainty; Experimental uncertainty; Small-scale experiment; Multi-room compartment; Interface height; Hot-gas-layer temperature}},
language = {{eng}},
pages = {{46--58}},
publisher = {{Elsevier}},
series = {{Fire Safety Journal}},
title = {{An evaluation of two methods to predict temperatures in multi-room compartment fires}},
url = {{http://dx.doi.org/10.1016/j.firesaf.2015.07.006}},
doi = {{10.1016/j.firesaf.2015.07.006}},
volume = {{77}},
year = {{2015}},
}