期刊
CHINESE JOURNAL OF CHEMICAL ENGINEERING
卷 27, 期 4, 页码 765-771出版社
CHEMICAL INDUSTRY PRESS
DOI: 10.1016/j.cjche.2018.10.001
关键词
Atomization; Pressure-swirl injector; Mazut; Size distribution; Fuel; Viscosity
The available SMD (Sauter mean diameter) correlations on pressure-swirl injectors predict droplet sizing very different from each other, especially for heavy fuels. Also there was a lack in the literature for comparing available correlations. So an experimental study was conducted on a heavy fuel oil (HFO) spray, Mazut 380. A pressure swirl injector was designed and fabricated. The experiments for Mazut at 40 degrees C and 80 degrees C were compared with the results for water, including spray half cone angle, breakup length and mean droplet diameter, at different injection pressures. Lower spray angle, higher breakup length and larger droplets were observed for lower injection pressures and higher liquid viscosity. SMD was about 75 mu m for water and about 87 mu m for Mazut at 80 degrees C. The results for droplet mean diameter were also compared with correlations from previous studies on pressure swirl atomizers. The SMD results show that for water spray, LISA method was in good agreement, also Babu and Ballester correlations were successful when high viscosity fluid was injected. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
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