THE STUDY OF THERMAL PROPERTIES OF TITANIUM-MAGNETITE KACHKANAR PELLETS
https://doi.org/10.17073/0368-0797-2016-5-328-333
Abstract
The thermo-physical properties of titanium-magnetite Kachkanar pellets of various basicity were carried out. Using the method of mixing, the dependence of the average physical specific heat of pellets under the temperature and phase composition was found. To find an apparent heat capacity of pellets the authors have used the gravimetric system with continuous registration of changes in the mass of pellet which provides the creation of an oxidizing or neutral atmosphere to separate the processes of oxidation and decarbonization. The coefficients of pellets thermal diffusivity were determined using a quasisteady method enabling simple ratio calculation during continuous heating. The coefficients of thermal conductivity of the pellets were found from the equation connecting the density, heat capacity and thermal diffusivity coefficients. The results are of particular interest and can be used in the design of the new firing units, as well as the optimization of design and operational parameters of the existing ones.
About the Authors
B. P. Yur’ev
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Thermal Physics and Informatics in Metallurgy”
V. A. Gol’tsev
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Ther- mal Physics and Informatics in Metallurgy”
References
1. Skuratov S.M., Kolesov V.P., Vorob’ev A.F. Termokhimiya. Part. 2 [Thermochemistry]. Moscow: Izdanie MGU, 1966, 434 p. (In Russ.).
2. Yur’ev B.P., Spirin N.A. Thermophysical properties of limestone and lime on heating. Steel in Translation. 2012, vol. 42, Issue 4, pp. 308–311.
3. Yur’ev B.P., Spirin N.A. Thermophysical properties of slag-forming mixtures. Steel in Translation. 2011, vol. 41, Issue 6, pp. 475–479.
4. Ponomarev S.V., Mishchenko S.V., Divin A.G., Vetrogradskii V.A., Churikov A.A. Teoreticheskie i prakticheskie osnovy teplofizicheskikh izmerenii: monografiya [Theoretical and practical bases of thermal measurements: Monograph]. Moscow: FIZMATLIT, 2008, 408 p. (In Russ.).
5. Fokin V.M., Kovylin A.V., Chernyshov V.N. Energoeffektivnye metody opredeleniya teplofizicheskikh svoistv stroitel’nykh materialov i izdelii [Energy-efficient methods for the determination of thermal properties of building materials and products]. Moscow: Izdatel’skii dom “Spektr”, 2011, 156 p. (In Russ.).
6. Ponomarev S.V., Balabanov P.V., Trofimov A.V. An estimate of the errors in measuring the thermal properties of solids. Measurement Techniques. 2004, vol. 47, no. 1, pp. 66–72.
7. Cemushi F., Bison P.G., Figari A., Marinetti S., Grinzato E. Thermal diffusivity measurements by phototermal and thermographic techniques. Int. J. Thermophys. 2004, vol. 25, no. 2, pp. 439–457.
8. Gurov A.V., Ponomarev S.V. Izmerenie teplofizicheskikh svoistv teploizolyatsionnykh materialov metodom ploskogo mgnovennogo istochnika teploty: monografiya [The measurement of thermal properties of thermal insulation materials by flat instant heat source: Monograph]. Tambov: Izd-vo TGTU, 2013, 100 p. (In Russ.).
9. Kuznetsov G.V., Kats M.D. A theoretical analysis of the systematic errors in determining the thermal characteristics of structural materials by a pulse method in a sample of finite dimensions. Measurement Techniques. 2009, vol. 52, no. 4, pp. 384–387.
10. Ponomarev S.V., Mishenko S.V., Irvine T.F. Measurements of Thermophysical Properties by Laminar Flow Methods. New York: Beggel House, Inc. Publishers, 2001, 273 p.
11. Yur’ev B.P., Gol’tsev V.A., Matyukhin V.I., Matyukhin O.V., Sheshukov O.Yu. Opredelenie teplofizicheskikh svoistv materialov metallurgicheskogo proizvodstva [Determination of thermophysical properties of materials of metallurgical production]. Ekaterinburg: OOO “UIPTs”, 2014, 180 p. (In Russ.).
12. Yur’ev B.P. Thermal diffusivity determination method for nonstable heat conduction. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2011, no. 12, pp. 26–28. (In Russ.).
13. Shashkov A.G., Volokhov G.M., Abramenko T.N. etc. Metody opredeleniya teploprovodnosti i temperaturoprovodnosti [Methods for determining thermal conductivity and thermal diffusivity]. Moscow: Energiya, 1973, 336 p. (In Russ.).
14. Kartashev E.M. Analiticheskie metody v teorii teploprovodnosti tverdykh tel [Analytical methods in the theory of heat conduction of solids]. Moscow: Vysshaya shkola, 2005, 550 p. (In Russ.).
15. Lykov A.V. Teoriya teploprovodnosti [Theory of heat conduction]. Moscow: Vysshaya shkola, 1967, 600 p. (In Russ.).
Review
For citations:
Yur’ev B.P., Gol’tsev V.A. THE STUDY OF THERMAL PROPERTIES OF TITANIUM-MAGNETITE KACHKANAR PELLETS. Izvestiya. Ferrous Metallurgy. 2016;59(5):328-333. (In Russ.) https://doi.org/10.17073/0368-0797-2016-5-328-333
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