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ANALYSIS OF LABORATORY METHODS USED FOR THE DETERMINATION OF THE MINIMUM IGNITION ENERGY IN THE CASE OF AIR/FUEL DUST MIXTURES
Abstract
The continued development of human society, from the technical and economic point of view, has led to the need for the increasingly widespread use in the various existing industrial branches of chemical substances and compounds in the form of combustible dust and dust. The processing, handling and storage of these pulverized substances often leads to the emergence of complex explosive mixtures whose explosiveness characteristics cannot be assimilated with the data available in the literature. In places where the probability of the occurrence of potentially explosive atmospheres generated by the mixture of combustible dust with air is high, it is necessary to ensure an acceptable level of protection, in accordance with the rules in force, materialized mainly by the use of protected technical equipment in the respective areas suitable. The safety requirements of technical equipment that can be used in areas with combustible dust are established after knowing the type of combustible dust and its sensitivity to ignition, defined mainly by determining the minimum ignition energy of the combustible dust. The paper presents two methods for determining the minimum ignition energy, with a description of the equipment used and the principles of operation. Also, the results obtained from laboratory tests to determine the minimum ignition energy in the case of a combustible powder (nystatin) are presented, using the two methods.
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References5
SR EN 60079-0 (2018) Explosive atmospheres - Part 0: Equipment - General requirements.
Jurca A., Paun F.A., Paraian M., Gabor D.S., Lupu L, Study of influence factors of determination the explosive characteristics to the air / combustible dust mixtures, 18th International Multidisciplinary Scientific Geoconference (SGEM 2018), Mineral processing, Oil and Gas Exploration, Bulgaria, vol. 18, 2018, pp. 819-826; DOI: 10.5593/sgem2018/1.4/s06.107
Directive 2014/34/EU - ATEX, (2014).
Jurca A., Gabor D., Paun F.A., Vatavu N., Paraian M., Comparative study having in view the methods of determination the minimum ignition energy of the air/combustible dust mixtures, 19th International Multidisciplinary Scientific Geoconference (SGEM 2019), 28 June - 7 July, Albena Resort & Spa, Bulgaria, 2019. DOI: 10.5593/sgem2019/1.3/s03.016
Jurca A., Ghicioi E., Paraian M., Burian S., Darie M., Sicoi S., Paun F., Implementation and carrying out of laboratory test stands required for conformity assessment of equipment intended for use in potentially explosive atmospheres generated by combustible dusts - IRECEEX, INSEMEX Petrosani, (Romanian) C 43/2005, 2005.
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