The influence of external electrostatic field on the combustion of hexamine
Keywords:
hexamine, combustion, ionic wind, attenuationAbstract
In scientific work investigates the impact of electric fields on combustion of hexamine. The experimental setup has been developed to study the interaction of an electric field with a low-temperature flame. The optimal spatial configuration of the electrodes for extinguishing the flame was established; the dynamics of airflows caused by the ion wind was studied; the threshold value of the electric field leading to flame extinguishing was determined. An expression is proposed based on the equation of motion that connects the speed of motion of partially ionized gas particles, the viscosity and degree of ionization of the gas, and the intensity of the external electric field. It is shown that the strength of the external electric field, leading to extinguishing of hexamine combustion, increases with decreasing inter-electrode space. The values of corresponding electric field strength lied in range from 80 to 135 kV/m at interelectrode distances of 0.4 and 0.1 m, respectively. The results of the study can be used for effective fire extinguishing in compact devices running on dry fuel.
References
- Friedman AN, Stoliarov SI. Acoustic extinction of laminar line-flames. Fire Safety Journal. 2017;93:102–113. DOI: 10.1016/j.firesaf.2017.09.002.
- Sher E, Pinhasi G, Pokryvailo A, Bar-On R. Extinction of pool flames by means of a DC electric field. Combustion and Flame.1993;94(3):244–252.
- Kim MK, Chung SH, Fujita O. Effect of AC electric fields on flame spread over electrical wire. Proceedings of the Combustion Institute. 2011;33(1):1145–1151.
- Kantorovich BV. Osnovy teorii goreniya i gazifikatsii tverdogo topliva [Fundamentals of the theory of combustion and gasification of solid fuel]. Moscow: Izdatel’stvo Akademii nauk SSSR; 1958. 601 p. Russian.
- Stan Bray SB. Making simple model steam engines hardcover. Ramsbury: Crowood Press; 2005. 192 р.
- Goldfeld MG, editor. Khimiya i obshchestvo [Chemistry and society]. Gololobov MYu, translator. Moscow: Mir; 1995. 559 p. Russian.
- Merritt JR, Herington L, Jones SB, Sayed Y. Analysis of hexamine combustion. American Industrial Hygiene Association Journal. 1991;52(1):30–33. DOI: 10.1080/15298669191364271.
- Tideman BG, Sciborsky DB. Khimiya goreniya [Combustion chemistry]. Leningrad: OGIZ; 1935. 356 p. Russian.
- Bokun HS, Di Caprio D. Potential and charge-carrier concen-tration distributions in solid electrolyte between flat electrodes. Journal of the Belarusian State University. Physics. 2018;2:71–80. Russian.
- Stepanov EM, D’yachkov BG. Ionizatsiya v plameni i elektricheskoe pole [Ionization in a flame and electric field]. Moscow:Metallurgiya; 1968. 311 p. Russian.
- Instant Flame Suppression. Phase II. Final Report. Cambridge: Defense Advanced Research Projects Agency, Harvard University; 2008. Report No.: 13-F-1078.
Downloads
Additional Files
Published
Issue
Section
License
The authors who are published in this journal agree to the following:
- The authors retain copyright on the work and provide the journal with the right of first publication of the work on condition of license Creative Commons Attribution-NonCommercial. 4.0 International (CC BY-NC 4.0).
- The authors retain the right to enter into certain contractual agreements relating to the non-exclusive distribution of the published version of the work (e.g. post it on the institutional repository, publication in the book), with the reference to its original publication in this journal.
- The authors have the right to post their work on the Internet (e.g. on the institutional store or personal website) prior to and during the review process, conducted by the journal, as this may lead to a productive discussion and a large number of references to this work. (See The Effect of Open Access.)
How to Cite
