The empirical definition of total emissivity of modern superthin liquid composite thermal insulators

International Conference and Youth Scientific School on "Materials and Technologies of New Generations in Modern Materials Science"

Anisimov, M.V.^1 ; Rekunov, V.S.^1 ; Babuta, M.N.^2 ; Lychagin, D.V.^3 ; Kuznetsova, U.N.^1 ; Lien, Nguyen Thi Hong Bach^2 ; Ivanova, E.V.^1,4 ; Taalaybekov, Z.T.^1

Tomsk State University of Architecture and Building, Solyanaya square 2, Tomsk

634003, Russia^1

National Research Tomsk Polytechnic University, 30 Lenina ave., Tomsk

634050, Russia^2

Tomsk State University, Tomsk

634050, Russia^3

Institute of Monitoring of Climatic and Ecological Systems, SB RAS, Tomsk

634055, Russia^4

关键词: Cost-efficient;    Experimental verification;    Laboratory equipments;    Preservation policies;    Thermal insulators;    Thermocouple probes;    Thin liquids;    Total emissivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/156/1/012001/pdf
DOI  :  10.1088/1757-899X/156/1/012001

来源: IOP

【 摘 要 】

Modern world trends in the field of energy and mineral resources preservation policy involves the need for a more cost-efficient use of the Earth's natural resources, including in the field of construction industry. Using insulation modern materials would largely solve this problem. The acceptability appraisal of various advanced heat-insulating blankets is a crucial task, which requires experimental verification of total emissivity empirical definition of modern super-thin liquid composite thermal insulators and their real value definition. Method of investigation is as follows: an empirical definition of blankets emissivity using the proposed laboratory equipment, which comprises a system of "gray" bodies, thermocouple probe and a source of continuous heat flux. Total emissivity of modern super-thin liquid composite thermal insulators is experimentally determined. It amounted e = 0.89 for sample # 1, and e = 0.87 for sample # 2 at a temperature of 35-65 °C. It was found that the actual emissivity of the samples was higher than it had been declared.