20.500.12556/DiRROS-17651 Experimental study of the burning behavior and key parameters of gasoline pool fires with different ullage heights 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. pool fires ullage height down-reaching flame flame radiative heat feedback burning rate correlation bazenski požari višina obloge navzdol segajoči plamen povratna toplotna informacija o sevanju plamena korelacija hitrosti izgorevanja true false true Elsevier Angleški jezik Slovenski jezik © 2023 Elsevier Ltd. All rights reserved Neznano 2024-01-08 09:26:08 2024-01-08 09:30:51 2024-01-09 03:37:07 0000-00-00 00:00:00 2023 0 0 Opis vira z dne 21. 9. 2023; Nasl. z nasl. zaslona; 7 str. Vol. 140, [article no.] 103912 Oct. 2023 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 2023-08-16 2025-08-16 62 1873-7226 10.1016/j.firesaf.2023.103912 165218051 https://www.sciencedirect.com/science/article/pii/S0379711223001807?via%3Dihub 1 93d2ba9a-adff-11ee-b0d4-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=23987 RAZ_Zhao_Jinlong_2023.pdf RAZ_Zhao_Jinlong_2023.pdf 1 AF641BDBE89F038AD809D51E124986C0 e9c488975ba566c4eabc6d3bb1f35bdbfa4b72820be898666e9a0b570c68a201 2169762e-ae00-11ee-b0d4-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=23988 Zavod za gradbeništvo Slovenije 0 0 0