KFU. Card publication. Creation of model and calculation of thermal processes in the ring graphite electrode of the plasmatron

KAZAN
FEDERAL UNIVERSITY

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CREATION OF MODEL AND CALCULATION OF THERMAL PROCESSES IN THE RING GRAPHITE ELECTRODE OF THE PLASMATRON

Form of presentation

Articles in Russian journals and collections

Year of publication

2018

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Authors, employees of KFU

Nasibullin Ramil Takhirovich, author

Sadriev Almaz Shamilovich, author

Sadriev Ramil Shamilevich, author

Sarimov Lenar Rafisovich, author

Bibliographic description in the original language

Nasibullin R.T, Sadriev A.S, Sadriev R.S. Creation of model and calculation of thermal processes in the ring graphite electrode of the plasmatron // International Journal of Engineering and Technology(UAE). – 2018. – Vol.7, Is.4.36 Special Issue 36. – P.1046-1049. (Scopus) – URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059980536&partnerID=40&md5=3270373bd3a2d114cd9660b2767c9cf1.

Annotation

This paper presents the theoretical and experimental material obtained in the study of the erosion and thermal state of the ring graphite electrode for a plasmatron. Thermal processes in graphite electrodes of plasmatrons are quite complex and multifaceted. A mathematical model of thermal processes that occur at the ring electrodes of plasmatrones has been developed. The mathematical model is based on the differential heat conduction equation for a ring electrode in cylindrical coordinates. With the use of this mathematical model, the inverse problem of heat conduction is solved: determination of the regularities of the heat exchange process by the temperatures of individual points on a solid surface. An experimental study of the temperature distribution at the end of the electrode and along the length of the electrode was carried out. Experiments have shown that the temperature on the side surfaces drops sharply towards the cold end of the electrode. When reducing the length of the electrode, the maximum temperature at the end decreases, and the temperature on the inner and outer edges of the electrode increases slightly. The most significant factors determining the temperature field at the end of the ring electrode are the power and size of the heat source. Comparison of the results of experimental studies and mathematical modeling showed a match with an acceptable degree of accuracy.

Keywords

graphite electrode, ring electrode, thermal processes, thermal conductivity, electric arc, plasmatron, thermal characteristics

The name of the journal

International Journal of Engineering and Technology(UAE)

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059980536&partnerID=40&md5=3270373bd3a2d114cd9660b2767c9cf1

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=274900&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Nasibullin Ramil Takhirovich	ru_RU
dc.contributor.author	Sadriev Almaz Shamilovich	ru_RU
dc.contributor.author	Sadriev Ramil Shamilevich	ru_RU
dc.contributor.author	Sarimov Lenar Rafisovich	ru_RU
dc.date.accessioned	2018-01-01T00:00:00Z	ru_RU
dc.date.available	2018-01-01T00:00:00Z	ru_RU
dc.date.issued	2018	ru_RU
dc.identifier.citation	Nasibullin R.T, Sadriev A.S, Sadriev R.S. Creation of model and calculation of thermal processes in the ring graphite electrode of the plasmatron // International Journal of Engineering and Technology(UAE). – 2018. – Vol.7, Is.4.36 Special Issue 36. – P.1046-1049. (Scopus) – URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059980536&partnerID=40&md5=3270373bd3a2d114cd9660b2767c9cf1.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=274900&p_lang=2	ru_RU
dc.description.abstract	International Journal of Engineering and Technology(UAE)	ru_RU
dc.description.abstract	This paper presents the theoretical and experimental material obtained in the study of the erosion and thermal state of the ring graphite electrode for a plasmatron. Thermal processes in graphite electrodes of plasmatrons are quite complex and multifaceted. A mathematical model of thermal processes that occur at the ring electrodes of plasmatrones has been developed. The mathematical model is based on the differential heat conduction equation for a ring electrode in cylindrical coordinates. With the use of this mathematical model, the inverse problem of heat conduction is solved: determination of the regularities of the heat exchange process by the temperatures of individual points on a solid surface. An experimental study of the temperature distribution at the end of the electrode and along the length of the electrode was carried out. Experiments have shown that the temperature on the side surfaces drops sharply towards the cold end of the electrode. When reducing the length of the electrode, the maximum temperature at the end decreases, and the temperature on the inner and outer edges of the electrode increases slightly. The most significant factors determining the temperature field at the end of the ring electrode are the power and size of the heat source. Comparison of the results of experimental studies and mathematical modeling showed a match with an acceptable degree of accuracy.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	graphite electrode	ru_RU
dc.subject	ring electrode	ru_RU
dc.subject	thermal processes	ru_RU
dc.subject	thermal conductivity	ru_RU
dc.subject	electric arc	ru_RU
dc.subject	plasmatron	ru_RU
dc.subject	thermal characteristics	ru_RU
dc.title	Creation of model and calculation of thermal processes in the ring graphite electrode of the plasmatron	ru_RU
dc.type	Articles in Russian journals and collections	ru_RU