Peer-reviewed articles 17,970 +



Title: SPECIFIC ASPECTS REGARDING THE TESTING OF FLAMEPROOF ENCLOSURE EQUIPMENT INTENDED FOR USE IN HAZARDOUS AREAS ENDANGERED BY THE PRESENCE OF HYDROGEN

SPECIFIC ASPECTS REGARDING THE TESTING OF FLAMEPROOF ENCLOSURE EQUIPMENT INTENDED FOR USE IN HAZARDOUS AREAS ENDANGERED BY THE PRESENCE OF HYDROGEN
Lucian Moldovan; Adrian Jurca; Mihai Magyari; Marcel Rad; Valentin Sirbu
10.5593/sgem2024/1.1
1314-2704
English
24
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
The type of protection flameproof enclosure consists in placing the parts that can ignite an explosive atmosphere into an enclosure that can withstand an internal explosion and it prevents the transmission of the explosion effects (hot gases, flames, incandescent particles etc.) capable of ignition to the external explosive atmosphere in which the equipment is placed.
The purpose of the paper is to underline some specific situations that can occur during the tests in explosive mixtures needed to verify the characteristics ensuring explosion protection in case of flameproof enclosure “d” type of protection. When speaking of enclosures having regular geometrical shapes and normal internal distribution of components the pressures and pressure curves exhibit a normal behavior. But, when the enclosure has an internal distribution of components that leads to pressure peaks and pre-compression phenomena during an internal explosion the results will present a different behavior. The tests in explosive mixture will be performed to a specific flameproof enclosure according to the testing methodology presented in the standard EN 60079-1 with explosive mixtures of hydrogen-air and acetylene-air. The obtained results of the tests, will be compared to show some specific particular aspects related to the tests in explosive mixtures, especially regarding the maximum explosion pressure.
[1] Burian S., Grecea D., Pupazan G., Evaluation of equipment used in Ex atmospheres - interdisciplinary field, Proceedings of the 10th International Symposium on Occupational Health and Safety SESAM 2021, Matec Web of Conferences, Vol 354, Art. No.00038, 2022
[2] Jolly, William Lee. "hydrogen". Encyclopedia Britannica, 19 Apr. 2024, https://www.britannica.com/science/hydrogen. Accessed 25 April 2024.
[3] McMillan A., Electrical Installations in Hazardous Areas, Butterworth-Heinemann Publishing House, Great Britain, 1998
[4] Krause T., Ostermann L, Wu J., Procedure Instruction Explosion Pressure (“EP”) Test Round 2023, Physikalisch-Technische Bundesanstalt, Document-ID: PI-EP2023-01
[5] Lin RB, Li L, Wu H, Arman H, Li B, Lin RG, Zhou W, Chen B, Optimized Separation of Acetylene from Carbon Dioxide and Ethylene in a Microporous Material, Journal of the American Chemical Society, Issue 139(23), pp 8022-8028, 2017
[6] Moldovan L., Burian S., Magyari M., Fotau D., Rad M., Aspects on testing electrical equipment with type of protection flameproof enclosure “d”, Proceedings of the 19th International Multidisciplinary Scientific Geoconference (SGEM), Science and Technology in Geology, Oil and Gas Exploration, Bulgaria, Issue 1.2, Vol 19, pp 663-670, 2019
[7] Sabo D, Varma S, Martin MG, Rempe SB. Studies of the thermodynamic properties of hydrogen gas in bulk water, The Journal of Physical Chemistry B, Issue 112(3), pp 867-876, 2008
[8] ***, SR EN IEC 60079-0, Explosive atmospheres - Part 0: Equipment – General requirements, ASRO, 2018
[9] ***, SR EN 1127-1, Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology, ASRO, 2019
[10] ***, SR EN 60079-1, Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d", ASRO, 2015
[11] ***, SR EN 60079-14, Explosive atmospheres - Part 14: Electrical installations design, selection and erection, ASRO, 2014
[12] ***, Directive 2014/34/EU on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast), Official Journal of the European Union, no.96, 2014
[13] ***, SR EN ISO/IEC 80079-20-1:2020, Explosive atmospheres — Part 20-1: Material characteristics for gas and vapour classification — Test methods and data, ASRO, 2020
This work was carried out through the “Nucleu” program of the National Research, Development and Innovation Plan 2022-2027, supported by MCID, project no. PN23320102.
conference
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
659-668
1 - 7 July, 2024
website
9910
Flameproof enclosure, hydrogen, tests, internal explosion, explosion pressure

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