- Tytuł:
- An analysis of relations for determining the thermal conductivity of rigid polymer foam
- Autorzy:
-
Alsabry, A.
Nikitsin, V. I.
Kofanov, V. A.
Backiel-Brzozowska, B. - Powiązania:
- https://bibliotekanauki.pl/articles/264869.pdf
- Data publikacji:
- 2018
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
izolacja termiczna
przewodzenie ciepła
pianka polimerowa
model matematyczny
thermal insulation
effective thermal conductivity
rigid polymer foam
mathematical model
analysis of experimental datas - Opis:
- In the paper the authors present the effectiveness of the generalized thermal conductivity method for polymer foams, including modelling their geometrical structure. Calculations of the effective thermal conductivity coefficient λ are based on the generally accepted assumption of the additivity of different thermal exchange mechanisms in porous media and this coefficient is presented as a sum the coefficients of conductive λq, radiative λp, and convective λk thermal conductivity. However, in literature not enough attention is given to relations determined by means of the theory of generalized conductivity, including modelling the geometrical structure. This paper presents an analysis of these relations and verifies their ability to predict experimental data in comparison with the best formulae included in the paper [2].
- Źródło:
-
International Journal of Applied Mechanics and Engineering; 2018, 23, 4; 1015-1023
1734-4492
2353-9003 - Pojawia się w:
- International Journal of Applied Mechanics and Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł