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Title:Thin-layer boilover of large-scale diesel pool fires at sub-atmospheric pressure
Authors:ID Zhao, Jinlong (Author)
ID Zhang, Qingyuan (Author)
ID Hu, Zhenqi (Author)
ID Kang, Rongxue (Author)
ID Jomaas, Grunde (Author)
ID Yang, Rui (Author)
Files:.pdf PDF - Presentation file. (1,04 MB, This file will be accessible after 10.12.2025)
MD5: 0D624F6A0061976B9DAEC09544C4A9C7
 
URL URL - Source URL, visit https://doi.org/10.1016/j.fuel.2023.130482
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:As thin-layer burning of fuels on water are often followed by thin-layer boilover fires, particularly during the firefighting process, an experimental and numerical study was undertaken to address key aspects of such fires, especially in plateau areas (i.e., sub-atmospheric pressure). In the thin-layer boilover experiments at sub-atmospheric pressure (69 kPa), diesel was used as the fuel in five circular steel trays (ranging from 0.4 m to 1.2 m in diameter) and a square steel tray (side length of 2.5 m). The burning process, and especially the continuous boilover stage, was presented and the corresponding boilover intensity, time to boilover onset and boilover time interval were measured and analyzed. The results show that the flame height increased sharply at the initial boilover, while this increasing range gradually became weak for the subsequent boilovers. The initial boilover intensity showed a linear dependency on the fuel layer thickness at the time of boilover, and the slope of the boilover intensity line decreased with increasing pan area. Eventually, the effect of pan area on boilover intensity became limit. Moreover, a predictive model for the boilover intensity was established based on dimensionless analysis. The initial boilover onset time under the sub-atmospheric pressure was delayed compared with that under atmospheric pressure. The corresponding predictive correlation (for 69 kPa) with different diameter and fuel thickness was developed based on the one-dimension two-layer conduction model. In the end, the boilover time interval decreased with the boilover times, closing to uninterrupted boilover eventually. This work enriches the thin-layer boilover behavior experimental data at sub-atmospheric pressure and provides guidance for the fuel storage safety.
Keywords:thin-layer boilover, boilover intensity, time to boilover onset, boilover time interval, sub-atmospheric fires
Publication status:Published
Publication version:Author Accepted Manuscript
Publication date:10.12.2023
Publisher:Elsevier Science
Year of publishing:2024
Number of pages:1-10 str.
Numbering:[article no.] 130482, Vol. 360
PID:20.500.12556/DiRROS-17808 New window
UDC:53
ISSN on article:1873-7153
DOI:10.1016/j.fuel.2023.130482 New window
COBISS.SI-ID:180773891 New window
Copyright:© 2023 Published by Elsevier Ltd.
Note:Nasl. z nasl. zaslona; Opis vira z dne 12. 1. 2024;
Publication date in DiRROS:16.01.2024
Views:850
Downloads:170
Metadata:XML DC-XML DC-RDF
:
ZHAO, Jinlong, ZHANG, Qingyuan, HU, Zhenqi, KANG, Rongxue, JOMAAS, Grunde and YANG, Rui, 2024, Thin-layer boilover of large-scale diesel pool fires at sub-atmospheric pressure. Fuel [online]. 2024. Vol. 130482, no. 360, p. 1–10. [Accessed 7 April 2025]. DOI 10.1016/j.fuel.2023.130482. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=17808
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Record is a part of a journal

Title:Fuel
Publisher:Elsevier Science
ISSN:1873-7153
COBISS.SI-ID:1024304732 New window

Document is financed by a project

Funder:EC - European Commission
Funding programme:H2020
Project number:952395
Name:Fire-safe Sustainable Built Environment
Acronym:FRISSBE
Funder:Other - Other funder or multiple funders
Project number:2020QN05
Name:Fundamental Research Funds for the Central Universities

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:Slovenian
Keywords:tankoplastno kipenje, intenziteta kipenja, čas do začetka kipenja, časovni interval kipenja, podatmosferski požari


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