METALLURGY AND CLIMATE CHANGES - HEAT TRANSFER BY CONDUCTION

1 CONSTANTINESCU Dan
Institution:
1 University Politehnica of Bucharest, Bucharest, Romania, EU, dconstantinescu@ecomet.pub.ro
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
302-308
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
47 views / 18 downloads
Abstract

The present paper does not have in view the impact of metallurgical industry on the environment. We have in view some thermal models, used in the case of solid bodies like for example the steel, in order to analyze similar phenomena in the nature and the effect on the climate changes. But, in the case of a natural system, it is more complicate, having in view the properties of the rocks and of the air.In the case of the conductivity of the steels, it is used the Laplace equation for the bidirectional conductivity and the theory of Debay and Einstein regarding the stream of the electrons. But, is it applicable in case of the rocks and of the soils? This is not very sure. In the article are used some experimental data regarding the temperature in soils and the temperature of the air. The data are obtained at research centre Abisko located near the Arctic Circle, Sweden. Tables and graphics are obtained and the results are analyzed. Some conclusions regarding the heat transfer from the interior levels of the rocks are presented. However, the conclusions are not the final conclusions and more data and mathematical models are necessary. Therefore, we propose to follow the researches in two directions. It means, the theory of heat transfer in solid bodies, and the second direction regard the data of heat transfer from the soil surface to the air. It can be employed a quantitative approach, including numerical solution and theoretical aspects of heat transfer.

Keywords: Metallurgy, steel, conductivity, climate changes, mathematical model
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