Experiments with Disk Stabilized Kerosene-Fuelled Flames
作者:
Y. Hardalupas,
C. H. Liu,
J. H. Whitelaw,
期刊:
Combustion Science and Technology
(Taylor Available online 1994)
卷期:
Volume 97,
issue 1-3
页码: 157-191
ISSN:0010-2202
年代: 1994
DOI:10.1080/00102209408935373
出版商: Taylor & Francis Group
关键词: spray flames;droplet size-velocity correlation;liquid fuel flux;flammability limits;flame length;phase Doppler velocimeter
数据来源: Taylor
摘要:
Kerosene-fueled flames with the spray emanating from a commercial atomizer positioned on the axis of stabilizing disks with blockage ratios of 0.74, 0.56 and 0.39 without and with a quarl diffuser are characterised in terms of flammability limits, droplet velocities according to their size, mean droplet sizes,liquid fluxes and local temperatures. Detailed measurements were obtained with a disk blockage ratio of 0.74, for an overall equivalence ratio of 0.26 and a Reynolds number of 53700 based on the area averaged velocity of the air in the annulus upstream of the bluff body and the outer diameter of the pipe. The velocities and liquid fluxes are presented for three 5 µm size classes, namely 10-15, 30-35 and 50-55 µlm, to emphasize the behaviour of small, medium and large droplet sizes in the region of flame stabilization and isothermal-flow results are presented in the absence of the quarl to allow comparison of the near disk flow with and without combustion.
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