Pulsating Evaporation of Emulsion Droplets under the Action of a High-Frequency Electric Discharge

Authors

DOI:

https://doi.org/10.15407/ujpe71.6.495

Keywords:

diesel-water emulsions, droplets, electric streamer, pulsations, period, microexplosion

Abstract

The pulsations of droplet size in diesel-water emulsions under the action of a high-frequency electric discharge have been studied using high-speed video recording. The discharge leads to the dispersion of emulsion droplets with a high water content, in contrast to droplets of pure combustible liquids. By processing video recordings of the evaporation process, the time dependence of the projection-equivalent droplet size was determined. The results of this study can be used in further investigations of the spray combustion of emulsion droplets when an additional high-frequency electric discharge is applied at the atomization stage.

References

1. X. Pei, P. Guida, K.M. AlAhmadi, I.A. Al Ghamdi, S. Saxena, W.L. Roberts. Cenosphere formation of heavy fuel oil/water emulsion combustion in a swirling flame. Fuel Process. Technol. 216, 106800 (2021).

https://doi.org/10.1016/j.fuproc.2021.106800

2. Shuhn-Shyurng Hou, F.M. Rizal, Ta-Hui Lin, Tzu-Yueh Yang, Hou-Peng Wan. Microexplosion and ignition of droplets of fuel oil/bio-oil (derived from lauan wood) blends. Fuel 113, 31 (2013).

https://doi.org/10.1016/j.fuel.2013.05.066

3. I. Park, Oh. Jungmo. Study on the characteristics of performance, combustion, and emissions for a diesel water emulsion fuel on a combustion visualization engine and a commercial diesel engine. Fuel 311, 122520 (2022).

https://doi.org/10.1016/j.fuel.2021.122520

4. Chi-Yao Chao, Hsuan-Wei Tsai, Kuo-Long Pan, ChihWei Hsieh. On the microexplosion mechanisms of burning droplets blended with biodiesel and alcohol. Combust. Flame 205, 397 (2019).

https://doi.org/10.1016/j.combustflame.2019.04.017

5. A. Hoxie, R. Schoo, J. Braden. Microexplosive combustion behavior of blended soybean oil and butanol droplets. Fuel 120, 22 (2014).

https://doi.org/10.1016/j.fuel.2013.11.036

6. E. Mura, R. Calabria, V. Califano, P. Massoli, J. Bellettre. Emulsion droplet micro-explosion: Analysis of two experimental approaches. Exper. Therm. Fluid Sci. 56, 69 (2014).

https://doi.org/10.1016/j.expthermflusci.2013.11.020

7. Shuhn-Shyurng Hou, F.M. Rizal, Ta-Hui Linb, Tzu-Yueh Yang, Hou-Peng Wan. Microexplosion and ignition of droplets of fuel oil/bio-oil (derived from lauan wood) blends. Fuel 113, 31 (2013).

https://doi.org/10.1016/j.fuel.2013.05.066

8. Weiwei Shang, Shouyin Yang, Tiemin Xuan, Zhixia He, Jiawei Cao. Experimental studies on combustion and microexplosion characteristics of nalkane droplets. Energy Fuels 34, 16613 (2020).

https://doi.org/10.1021/acs.energyfuels.0c02904

9. D.V. Antonov, R.M. Fedorenko, P.A. Strizhak. Microexplosion phenomenon: Conditions and benefits. Energies 15, 7670 (2022).

https://doi.org/10.3390/en15207670

10. P. Strizhak, M. V. Piskunov, R.S. Volkov, J.C. Legros. Evaporation, boiling and explosive breakup of oil-water emulsion drops under intense radiant heating. Chem. Engin. Res. Design 127, 72 (2017).

https://doi.org/10.1016/j.cherd.2017.09.008

11. J. Won, S.W. Baek, H. Kim. Autoignition and combustion behavior of emulsion droplet under elevated temperature and pressure conditions. Energy 163, 800 (2018).

https://doi.org/10.1016/j.energy.2018.08.185

12. M.M. Avulapati, T. Megaritis, J. Xia, L. Ganippa. Experimental understanding on the dynamics of micro-explosion and puffing in ternary emulsion droplets. Fuel 239, 1284 (2019).

https://doi.org/10.1016/j.fuel.2018.11.112

13. G.V. Kuznetsov, K.Yu. Vershinina, T.R. Valiullin, P.A. Strizhak. Differences in ignition and combustion characteristics of waste-derived oil-water emulsions and coalwater slurries containing petrochemicals. Fuel Process. Technol. 179, 407 (2018).

https://doi.org/10.1016/j.fuproc.2018.07.033

14. C. Gabera, P. Wachter, M. Demuth, C. Hochenaue. Experimental investigation and demonstration of pilot-scale combustion of oil-water emulsions and coal-water slurry with pronounced water contents at elevated temperatures with the use of pure oxygen. Fuel 282, 118692 (2020).

https://doi.org/10.1016/j.fuel.2020.118692

15. D.V. Antonov, G.V. Kuznetsov, P.A. Strizhak. Comparison of the characteristics of micro-explosion and ignition of two-fluid water-based droplets, emulsions and suspensions, moving in the high-temperature oxidizer medium. Acta Astronautica 160, 258 (2019).

https://doi.org/10.1016/j.actaastro.2019.04.048

16. Shuai Huang, Tie Li, Xinran Wang, Run Chen, Rundai Yang, Zhonghua Qian. Effects of various discharge strategies on ignition and combustion of lean natural gas mixture under the static and turbulent conditions. Exper. Therm. Fluid Sci. 133, 110581 (2022).

https://doi.org/10.1016/j.expthermflusci.2021.110581

17. N.A. Bulychev. Electric discharge in liquids under the effect of vibration. Int. J. Recent Technol. Engin. 8, 68 (2019).

https://doi.org/10.35940/ijrte.C5901.118419

18. V.H. Shevchuk, A.V. Nymych, O.S. Chernenko, O.Ye. Sydorov, M.O. Ivanov. Use of aqueous emulsions of waste motor oils as a highly efficient fuel. Zbirn. Nauk. Prats Viysk. Akad. (Odesa) 2, 139 (2023) (in Ukrainian).

https://doi.org/10.37129/2313-7509.2023.20.139-148

19. O.S. Chernenko, K.V. Tymofiienko, M.O. Ivanov. Evaporation of combustible liquid droplets in an electric discharge. Fiz. Aerodysp. Syst. 61, 212 (2023) (in Ukrainian).

https://doi.org/10.18524/0367-1631.2023.61.292235

20. A. Husain, A.A. Adewunmi, M. Mahmoud, M. Kamal. Stability of diesel/water emulsions: experimental and modeling investigations. J. Energy Res. Technol. 143, No. 11, 1 (2021).

https://doi.org/10.1115/1.4049606

21. A.M. Ithnin, W.J. Yahya, M.A. Ahmad, N.A. Ramlan, H. Abdul Kadir, N.A.C. Sidik, T. Koga. Emulsifier-free water-in-diesel emulsion fuel: Its stability behaviour, engine performance and exhaust emission. Fuel 215, 454 (2018).

https://doi.org/10.1016/j.fuel.2017.11.061

22. C. Mata, V. Rojas-Reinoso, J.A. Soriano. Experimental determination and modelling of fuel rate of injection: A review. Fuel 343, 127895 (2023).

https://doi.org/10.1016/j.fuel.2023.127895

Published

2026-05-25

Issue

Section

General physics

How to Cite

Pulsating Evaporation of Emulsion Droplets under the Action of a High-Frequency Electric Discharge. (2026). Ukrainian Journal of Physics, 71(6), 495. https://doi.org/10.15407/ujpe71.6.495

Most read articles by the same author(s)