| Title: | Experimental study of the burning behavior and key parameters of gasoline pool fires with different ullage heights |
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| Authors: | ID Zhao, Jinlong (Author)
ID Li, Xinjiang (Author)
ID Hu, Zhenqi (Author)
ID Kang, Rongxue (Author)
ID Jomaas, Grunde (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0379711223001807?via%3Dihub
 PDF - Presentation file. (1,51 MB, This file will be accessible after 16.08.2025)
MD5: AF641BDBE89F038AD809D51E124986C0
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | Pool fires with different ullage heights are a common type of fire accident. A series of gasoline pool fire ex- periments with two sizes (D = 40 cm, 60 cm) and six ullage heights (h = 0, 0.2D, 0.4D, 0.6D, 0.8D, 1.0D) are conducted. The burning process, axial temperature profile, radiative heat feedback, and burning rate are measured and analyzed. The result shows that the fuel vapor layer and the down-reaching flame layer are distinguished based on the axial temperature profile for the steady burning stage. Meanwhile, the down-reaching flame length (Ldown) increases more profoundly for large tank diameters under the same ullage height. Subse- quently, the dimensionless down-reaching flame length (Ldown* = Ldown/D) increases exponentially with the dimensionless ullage heights (h* = h/D). Finally, based on the classical burning rate model for the low ullage height and the heat transfer process from the flame to the fuel surface, a correlation with different ullage heights is established to calculate the burning rate, which is then validated against the experimental data in the paper and literature values. The results are of importance to understand the burning rate and the radiative heat feedback to the fuel surface for pool fires with different ullage heights. |
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| Keywords: | pool fires, ullage height, down-reaching flame, flame radiative heat feedback, burning rate correlation |
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| Publication status: | Published |
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| Publication version: | Author Accepted Manuscript |
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| Publication date: | 16.08.2023 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2023 |
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| Number of pages: | 7 str. |
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| Numbering: | Vol. 140, [article no.] 103912 |
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| PID: | 20.500.12556/DiRROS-17651  |
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| UDC: | 62 |
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| ISSN on article: | 1873-7226 |
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| DOI: | 10.1016/j.firesaf.2023.103912 |
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| COBISS.SI-ID: | 165218051 |
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| Copyright: | © 2023 Elsevier Ltd. All rights reserved |
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| Note: | Opis vira z dne 21. 9. 2023;
Nasl. z nasl. zaslona;
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| Publication date in DiRROS: | 08.01.2024 |
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| Views: | 175 |
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| Downloads: | 38 |
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