КФУ. Карточка публикации. Creation of model and calculation of thermal processes in the ring graphite electrode of the plasmatron

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ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ

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

Форма представления

Статьи в российских журналах и сборниках

Год публикации

2018

Язык

английский

Авторы, сотрудники КФУ

Насибуллин Рамиль Тахирович, автор

Садриев Алмаз Шамилович, автор

Садриев Рамиль Шамилевич, автор

Саримов Ленар Рафисович, автор

Библиографическое описание на языке оригинала

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.

Аннотация

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.

Ключевые слова

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

Название журнала

International Journal of Engineering and Technology(UAE)

URL

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

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https://repository.kpfu.ru/?p_id=274900

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Насибуллин Рамиль Тахирович	ru_RU
dc.contributor.author	Садриев Алмаз Шамилович	ru_RU
dc.contributor.author	Садриев Рамиль Шамилевич	ru_RU
dc.contributor.author	Саримов Ленар Рафисович	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/?p_id=274900	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	Статьи в российских журналах и сборниках	ru_RU