DEVELOPMENT OF MATHEMATICAL MODEL OF INFLAMMATORY ABILITY OF LOW VOLTAGE MEASURING CIRCLES
DOI:
https://doi.org/10.31471/1993-9981-2022-1(48)-103-108Keywords:
low-voltage measuring circuit (LVC), intrinsic safety assessment, incendiary ability, mathematical model, classical and simulation modeling, indirect control method.Abstract
The article obtained new scientific knowledge about the process of ignition of an explosive mixture by a low-voltage measuring circuit (LVC), on the basis of which a more advanced industry document could be developed in the future, for example, a new DSTU or DEST. A method is proposed for indirect control of the measurement of a parameter that determines the incendiary ability of the LVC electric discharge.
The direct method of electrical measurement of intrinsic safety is more perfect, as it allows you to directly determine the maximum energy of the electric discharge for the time set by the criterion, ie the parameter that determines the flammability of the electric discharge of the electrical circuit. The difficulty of implementing this approach is the difficulty of creating an electric model of the discharge, which copies the real discharge in the NEC, which would fully correspond to the real sparking and would take into account the most dangerous mine conditions of coal face.
A simple analytical dependence has been obtained, which makes it possible to estimate the incendiary ability of an LVC on its length with sufficient accuracy for practice. A method for the classical modeling of the incendiary ability of the LVC is proposed, as well as an original method for simulation. The article shows the approbation of research data at two foreign conferences and the interest of foreign colleagues in Australia and Iraq in them.
Downloads
References
Elektrooborudovaniye vzryvozashchishchennoye s vidom vzryvozashchity «Iskrobezopasnaya elektricheskaya tsep'». Tekhnicheskiye trebovaniya i metody ispytaniya: GOST 22782.5-1985. – [Vveden 1980-01.-01]. – M.: Izd.-vo standartov, 1985. – 70 s.
Lopatin, V.V. Naukovi osnovy rozroblennya systemy kontrolyu tekhnichnoho stanu zhorstkoho armuvannya shakhtnykh stovburiv: dys. doktora tekhn. nauk: 05.11.13./ Lopatin V.V.- Ivano-Frankivsʹk 2013. - 392s.
Lopatin, V.V. Rozrobka vymoh ta modelyuvannya protsesu zapalyuvannya vybukhonebezpechnoyi sumishi nyzʹkovolʹtnym vymiryuvalʹnym kolo/ Lopatin V.V.- Metody ta prylady kontrolyu yakosti. Naukovo tekhnichnyy zhurnal - Ivano - Frankivsʹk - № 2 (47), 2021, S. 78-89
Lopatin, V.V. Kontrolʹ tekhnichnoho stanu ta pidvyshchennya resursu shtanhovoyi nasosnoyi ustanovky [Tekst]: monohrafiya/ V.V. Lopatin, B.V. Kopey, I.B. Kopey; Ivano-Frankiv. nats. tekhn. un-t nafty i hazu; In-t heotekhn. mekhaniky im. M.S. Polyakova NAN Ukrayiny.-IFNTUNH, 2020.-378s.
Lopatin, V.V. Mobilʹni vymiryuvalʹni systemy v naftohazoviy ta hirnychiy promyslovosti [Tekst]: monohrafiya/ V.V. Lopatin, B.V. Kopey, O.I. Stefanyshyn; Ivano-Frankiv. nats. tekhn. un-t nafty i hazu; In-t heotekhn. mekhaniky im. M.S. Polyakova NAN Ukrayiny.-IFNTUNH, 2010.-392s.
Lopatin, V.V. Development of a mathematical model of the ignition capacity of low-voltage measuring circuits [Електронний ресурс]/ V.V. Lopatin // 7IYGEC — 7TH INTERNATIONAL YOUNG GEOTECHNICAL ENGINEERS CONFERENCE/ 29 Apr 2022 - 01 May 2022 Sydney, Australia Режим доступу до ресурсу: https://icsmge2022.org/7iygec/.- Назва з екрану.
Lopatin, V.V. Développement d'un modèle mathématique de la capacité d'allumage des circuits de mesure basse tension [Електронний ресурс]/ V.V. Lopatin // IRAQ 2022 — THIRD INTERNATIONAL CONFERENCE ON GEOTECHNICAL ENGINEERING/ 17 May 2022 - 19 May 2022 Baghdad, Iraq, Asia Режим доступу до ресурсу: https://ocs.uobaghdad.edu.iq/index.php/ICGEI/ticgei.- Назва з екрану.
.png)
