{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T19:59:40Z","timestamp":1782417580104,"version":"3.54.5"},"reference-count":11,"publisher":"STEF92 Technology","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,12,27]]},"abstract":"<jats:p>A small quantity of flammable gas mixed with dust can cause a large explosion with severe consequences. In this study, hybrid mixtures explosion tests were performed in a constant volume 0.02 m3 spherical vessel. Five pressure-time curves were recorded. The effects of initial temperature on burning velocity were investigated for Lycopodium Clavatum-methane-air hybrid mixtures. The most important results from evaluated experiments are the values of burning rates to understand better the fundamental flame methane-air process in hybrid mixtures. The burning velocity is known to be altered by turbulence. It depends on the coupling interaction between the explosion pressure, the rate of pressure rise, the volume of the vessel, and the ignition source. When discussing hybrid mixtures, the focus is on an admixture of flammable gas in concentrations below the lower explosive limit of the gas itself. If this limit for the gas is exceeded, one soon has a situation where the worst-case scenario for a primary explosion would be a pure gas explosion. In the present study, we highlight the first evaluation of laminar burning velocity determined with electrical point ignition at higher initial temperatures. The experiments have been performed in a 0.02 m3 constant volume vessel of spherical shape adopted for the hybrid mixture experiments. The laboratory-size vessels used in the presented study are geometrically similar, have different sizes, and with point ignition. The values of burning velocity varied when the temperature is higher than 25 -C, and the cube-root law was affected. The initial temperature rise does not affect the dependence between the maximum rate of pressure rise and the maximum explosion pressure in the Cube-root law formula.<\/jats:p>","DOI":"10.5593\/sgem2022v\/4.2\/s17.70","type":"proceedings-article","created":{"date-parts":[[2023,4,3]],"date-time":"2023-04-03T19:09:37Z","timestamp":1680548977000},"page":"559-566","source":"Crossref","is-referenced-by-count":4,"title":["LAMINAR BURNING VELOCITY FOR HYBRID MIXTURES OF CORN STARCH DUST AND METHANE GAS AT HIGH INITIAL TEMPERATURE"],"prefix":"10.5593","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3920-6332","authenticated-orcid":true,"given":"Matous","family":"Helegda","sequence":"first","affiliation":[{"name":"VSB-Technical University of Ostrava, Faculty of Safety Engineering","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iris","family":"Helegda","sequence":"additional","affiliation":[{"name":"VSB-Technical University of Ostrava, Faculty of Safety Engineering","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0538-7980","authenticated-orcid":true,"given":"Jan","family":"Skrinsky","sequence":"additional","affiliation":[{"name":"VSB-Technical University of Ostrava, Energy Research Centre","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4681-2154","authenticated-orcid":true,"given":"Katerina","family":"Kubricka","sequence":"additional","affiliation":[{"name":"VSB-Technical University of Ostrava, Faculty of Safety Engineering","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1829-8437","authenticated-orcid":true,"given":"Jiri","family":"Pokorny","sequence":"additional","affiliation":[{"name":"VSB-Technical University of Ostrava, Faculty of Safety Engineering","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3602","reference":[{"key":"ref=1","unstructured":"[1] BAM, Operating Procedure for a Round Robin Test on Hybrid Dust\/Gas-Mixtures -HYBRID 1-, 2021."},{"key":"ref=2","doi-asserted-by":"crossref","unstructured":"[2] Amyotte P. R., Eckhoff R. K., Dust explosion causation, prevention and mitigation: An overview, Journal of Chemical Health & Safety, Volume 17, Issue 1, pp 15-28, 2010.","DOI":"10.1016\/j.jchas.2009.05.002"},{"key":"ref=3","doi-asserted-by":"crossref","unstructured":"[3] Cloney C. T., Ripley R. C., Pegg M. J., Amyotte P. R. Role of particle diameter in laminar combustion regimes for hybrid mixtures of coal dust and methane gas, Powder Technology, Volume 362, Issue 2, pp 399-408, 2020.","DOI":"10.1016\/j.powtec.2019.11.106"},{"key":"ref=4","doi-asserted-by":"crossref","unstructured":"[4] Janovsky, B., Skrinsky J., Cupak J., Veres J. Coal dust, Lycopodium and niacin used in hybrid mixtures with methane and hydrogen in 1m3 and 20 l chambers, Journal of Loss Prevention in the Process Industries, Volume 62, pp., 2019.","DOI":"10.1016\/j.jlp.2019.103945"},{"key":"ref=5","doi-asserted-by":"crossref","unstructured":"[5] Saeed M. A., Slatter D. M., Andrews G. E., Phylaktou H. N., Gibbs B. M. The Burning Velocity of Pulverised Biomass: The Influence of Particle Size, Chemical Engineering Transactions, Volume 53, pp 31-36, 2016.","DOI":"10.1016\/j.jlp.2014.12.007"},{"key":"ref=6","doi-asserted-by":"crossref","unstructured":"[6] Spitzer S., Askar E., Krietsch A., Schroder V. Comparative study on standardized ignition sources used for explosion testing, Journal of Loss Prevention in the Process Industries, Volume 71, Issue 1, pp. 104516, 2021.","DOI":"10.1016\/j.jlp.2021.104516"},{"key":"ref=7","doi-asserted-by":"crossref","unstructured":"[7] Spitzer S., Askar E., Benke E., Janovsky B., Krause U., Krietsch A. Influence of pre-ignition pressure rise on safety characteristics of dust and hybrid mixtures, Fuel, Volume 311, Issue 1, pp. 122495, 2022.","DOI":"10.1016\/j.fuel.2021.122495"},{"key":"ref=8","unstructured":"[8] Helegda M., Skrinsky J., Jastrzembski T., Veres J., Cespiva J., Ochodek T., The role of burning velocity in the validity of hybrid mixtures, Chemical Engineering Transactions, Volume 90, pp 97-102, 2022."},{"key":"ref=9","unstructured":"[9] Stahmer K. W., Gerhold M., The Relationship between the Explosion Indices of Dispersed Dust and Particle Surface Area and the Heat of Combustion, Chemical Engineering Transactions, Volume 48, pp 295-300, 2016."},{"key":"ref=10","doi-asserted-by":"crossref","unstructured":"[10] Bartknecht W., Explosions: Course, Prevention, Protection. Berlin Heidelberg: Springer Verlag, ISBN 978-3-642-67749-6, 1981.","DOI":"10.1007\/978-3-642-67747-2"},{"key":"ref=11","unstructured":"[11] Amyotte P. R., An Introduction to Dust Explosions: Understanding the Myths and Realities of Dust Explosions for a Safer Workplace. The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB, UK 225 Wyman Street, Waltham, MA 02451, USA: Butterworth-Heinemann, ISBN 978-0-12-397007-7, 2013."}],"event":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference 2022","theme":"Earth and Planetary Sciences","location":"Vienna, Austria","acronym":"SGEM2022","number":"22","sponsor":["SGEM WORLD SCIENCE (SWS) Scholarly Society, Austria"],"start":{"date-parts":[[2022,12,6]]},"end":{"date-parts":[[2022,12,8]]}},"container-title":["SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings","22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2"],"original-title":[],"deposited":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T19:26:22Z","timestamp":1782415582000},"score":1,"resource":{"primary":{"URL":"https:\/\/epslibrary.at\/items\/e93cc16a-ff2c-4c35-b72e-6dead788e456\/laminar-burning-velocity-for-hybrid-mixtures-of-corn-starch-dust-and-methane-gas-at-high-i"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12,27]]},"references-count":11,"URL":"https:\/\/doi.org\/10.5593\/sgem2022v\/4.2\/s17.70","relation":{},"ISSN":["1314-2704"],"issn-type":[{"value":"1314-2704","type":"print"}],"subject":[],"published":{"date-parts":[[2022,12,27]]}}}