Experimental Study on Flame‒Flame Interaction and Its Merging Features Induced by Double Rectangular Propane Diffusion Burners With Various Aspect Ratios

Tao, Changfa; Ye, Qingpan; Wei, Jiangjun; Shi, Qin; Tang, Fei

doi:10.1080/00102202.2018.1529031

Cited by 14 publications

(3 citation statements)

References 35 publications

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“…Liu et al [21] analyzed the merging characteristics of two parallel rectangular burners under different fire-source spacings, length-width ratios, and heat-release rates and established a model among the flame-merging probability, the flame height, and the above-mentioned parameters. Tao et al [22] conducted a series of experiments to investigate flame interaction and the merging flame length of double pool fires with the length-width ratios of 1:1, 1:2, 1:4, and 1:8, respectively.…”

Section: Introductionmentioning

confidence: 99%

Study on Coupled Combustion Behavior of Two Parallel Line Fires

Liu

Yan

et al. 2022

Fire

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In this study, the interaction of two parallel line fires with a length-width ratio of greater than 50 was investigated and compared to a single line fire. Considering different length–width ratios and spacings between the fire sources, experiments were carried out to analyze the fire characteristics, such as the burning rate, the flame-merging state, the flame height, the flame tilt angle, and the flame length of the line fires. Its regularity was revealed by combining two mechanisms, namely, heat feedback enhancement and air entrainment restriction. The results revealed that the burning rate under different length–width ratios shows a uniform law, which increases first and then decreases with a greater spacing between the fire sources. There is a special relationship between the flame-merging probability Pm and the dimensionless characteristic parameters (S/ZC)/(L/d)0.27. Based on this relationship, a critical criterion of flame merging can be obtained as (S/ZC)/(L/d)0.27 = 2.38. In addition, the height and the length of the flame were studied to better describe the flame shape when the flame is tilted. Since the flame is bent, the flame length has an abrupt change at a specific position, and the inclination angle also has the same phenomenon. Finally, it was found that the influence of the length–width ratio on the line fires is relatively limited, which is further weakened under a greater length–width ratio.

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Section: Introductionmentioning

confidence: 99%

Study on Coupled Combustion Behavior of Two Parallel Line Fires

Liu

Yan

et al. 2022

Fire

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“…Along with the burning rate, the flame height of multiple pool fires will be inevitably affected by the interaction of flames. Former studies [17][18][19][20][21][22] have been measured the flame height of two fires in a parallel array in free space. Fan and Tang [17] experimentally obtained the flame height of two square heptane pool fires.…”

Section: Introductionmentioning

confidence: 99%

“…Vasanth et al [19] measured the flame height of two circular heptane pool fires using the method of numerical simulation. Other than the liquid fuel, Sugawa and Takahashi [20], Wan et al [21] and Tao et al [22] measured the flame heights of two rectangular propane gas fires. Other than free space, the flame height or length from two fires in confined spaces was studied by Wan et al [23,24].…”

Section: Introductionmentioning

confidence: 99%