Experimental Assessment of the Thermal Conductivity of Basalt Fibres at High Temperatures

Yuri Vankov, Elvira Bazukova, Dmitry Emelyanov, Alexander Fedyukhin, Olga Afanaseva, Irina Akhmetova and Umberto Berardi
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Yuri Vankov: Institute to Heart Power Engineering, Kazan State Power Engineering University, 420066 Kazan, Russia
Elvira Bazukova: Institute to Heart Power Engineering, Kazan State Power Engineering University, 420066 Kazan, Russia
Dmitry Emelyanov: Chemical Department, Kazan (Volga Region) Federal University, 420008 Kazan, Russia
Alexander Fedyukhin: Energy Efficiency and Hydrogen Technology Department, Power Engineering Institute, National Research University Moscow, 111250 Moscow, Russia
Olga Afanaseva: Institute of Energy, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Irina Akhmetova: Institute of Digital Technologies and Economics, Kazan State Power Engineering University, 420066 Kazan, Russia
Umberto Berardi: Department of Architectural Science, Ryerson University, Toronto, ON M5B 2K3, Canada

Energies, 2022, vol. 15, issue 8, 1-11

Abstract: This paper investigates fibrous thermal insulation materials of various densities to assess the change in their thermophysical properties at high temperatures. The thermal conductivity of fibrous thermal insulation materials is discussed as a function of the temperature in the range from 50 °C to 500 °C. It is shown that the thermal insulating properties depend not only on the physical properties of the material (e.g., density or diameter of fibres), but also on the geometric parameters of the structure and on the orientation of the fibres. The influence of high temperatures on the mass change of fibrous materials associated with the burnout of synthetic binders is shown. These features should be taken into account during the design of thermal insulation operating at high temperatures to provide the optimal selection of the material and to guarantee the stability of their thermal properties.

Keywords: heat losses; district heat network; thermal insulation; basalt fibre; thermogravimetry; thermal conductivity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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