Email this article Clarification of the parameters of the installation for determining the explosion characteristics of dust–air mixtures
- Authors: Manzhos E.V.1, Korzhavin A.A.1, Kozlov Y.V.1, Namyatov I.G.1
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Affiliations:
- V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences
- Issue: Vol 14, No 3 (2021)
- Pages: 98-108
- Section: Articles
- URL: https://journals.rcsi.science/2305-9117/article/view/288587
- DOI: https://doi.org/10.30826/CE21140309
- ID: 288587
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Abstract
At the V. V. Voevodsky Institute of Chemical Kinetics and Combustion of the Siberian Branch of the Russian Academy of Sciences, an installation has been designed for determining the characteristics of the explosion of dust–air mixtures in accordance with the regulatory document GOST 12.1.044-89 (p. 4.11). The installation makes it possible to determine the lower concentration limit of flame propagation, the minimum phlegmatizing concentration of the phlegmatizer, the minimum explosive oxygen content, as well as the maximum explosion pressure of dust–air mixtures. The need to determine such characteristics is caused by safety requirements when performing production processes associated with the formation of combustible dust and gas mixtures. The purpose of this work is to justify the choice of the design parameters of the ignition source, the time of the beginning of spraying, and the time of switching off the heating spiral which are the main parameters for the correct determination of the explosion indicators of dust–air mixtures. To achieve this goal, experimental studies of the material and design parameters of the heating spiral were carried out and their optimal values were selected. A theoretical description was given that satisfactorily describes the experimentally measured dynamics of the heating and cooling processes of the heating spiral. The moment of opening of the air supply valve, which determines the start time of spraying and the time of switching off the heating spiral, was justified.
About the authors
Evgeny V. Manzhos
V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences
Author for correspondence.
Email: eugen.manzhos@kinetics.nsc.ru
junior research scirntist
Russian Federation, 3 Institutskaya Str., Novosibirsk 630090Alexey A. Korzhavin
V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences
Email: korzh@kinetics.nsc.ru
Doctor of Science in technology, associate professor, head of the group of physics and chemistry of gas combustion
Russian Federation, 3 Institutskaya Str., Novosibirsk 630090Yaroslav V. Kozlov
V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences
Email: yaroslav@kinetics.nsc.ru
junior research scientist
Russian Federation, 3 Institutskaya Str., Novosibirsk 630090Igor G. Namyatov
V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences
Email: inam@kinetics.nsc.ru
research scientist
Russian Federation, 3 Institutskaya Str., Novosibirsk 630090References
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