000 02684nab a2200349 c 4500
001 vtls000795001
003 RU-ToGU
005 20210922111233.0
007 cr |
008 210310|2020 sz s a eng d
024 7 _a10.3390/app10020685
_2doi
035 _ato000795001
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aSecondary atomization of a biodiesel micro-emulsion fuel droplet colliding with a heated wall
_cA. E. Ashikhmin, N. A. Khomutov, M. V. Piskunov, V. A. Yanovsky
336 _aТекст
337 _aэлектронный
504 _aБиблиогр.: 36 назв.
520 3 _aUsing high-speed video recording, we establish the following regimes of hydrodynamic interaction of a biodiesel micro-emulsion fuel droplet with a heated wall: deposition (including drop spreading and receding), drop hydrodynamic breakup, and rebound. Collision regime maps are plotted using a set of dimensionless criteria: Weber number We = 470–1260, Ohnesorge number Oh = 0.146–0.192, and Reynolds number Re = 25–198. The scenarios of droplet hydrodynamic disintegration are studied for transient and film boiling. We also estimate the disintegration characteristics of a biodiesel micro-emulsion droplet (mean diameter of child droplets, their number, and evaporation surface area increase due to breakup). The study establishes the eect of water proportion on the micro-emulsion composition (8–16 vol.%), heating temperature (300–500 C), droplet size (1.8–2.8 mm), droplet velocity (3–4 m/s), rheological properties of the examined compositions, and emulsifier concentration (10.45 vol.% and 20 vol.%) on the recorded characteristics. The results show that the initial liquid surface area can be increased 2–19 times. The paper analyzes ways to control the process. The hydrodynamic disintegration characteristics of a biodiesel micro-emulsion fuel droplet are compared using 2D and 3D recording.
653 _aмикроэмульсионное топливо
653 _aбиодизель
653 _aвторичное распыление
655 4 _aстатьи в журналах
_9745982
700 1 _aKhomutov, Nikita A.
_9510306
700 1 _aPiskunov, Maxim V.
_9503830
700 1 _aYanovsky, Vyacheslav A.
_9106561
700 1 _aAshikhmin, Alexander E.
_9510307
773 0 _tApplied sciences
_d2020
_gVol. 10, № 2. P. 685 (1-21)
_x2076-3417
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000795001
908 _aстатья
999 _c479612