Determination of the equivalent thermal conductivity of complex material systems with large-scale heterogeneities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00219970" target="_blank" >RIV/68407700:21110/14:00219970 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.elsevier.com/locate/ijts" target="_blank" >http://www.elsevier.com/locate/ijts</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijthermalsci.2014.07.020" target="_blank" >10.1016/j.ijthermalsci.2014.07.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Determination of the equivalent thermal conductivity of complex material systems with large-scale heterogeneities

Popis výsledku v původním jazyce

A method for determination of the equivalent thermal conductivity of heterogeneous systems with large representative elementary volumes is proposed. The laboratory experiment is based on the guarded hot plate principle but the heat transfer in the designed setup is generally 3D. Therefore, 3D computational modeling is applied for the analysis of heat transport in the system. The measuring procedure begins with the calibration which is performed using a material of the known thermal conductivity and typice specimen dimensions. Then, the experiment is carried out with the investigated specimen and the steady-state values of temperatures and heat fluxes in the characteristic positions are measured. The equivalent thermal conductivity is determined in an iterative procedure, utilizing the results of the laboratory experiment as input data of the computational model. The application of the propřed method is illustrated on an example of two types of advanced hollow clay bricks. The uncertain

Název v anglickém jazyce

Determination of the equivalent thermal conductivity of complex material systems with large-scale heterogeneities

Popis výsledku anglicky

A method for determination of the equivalent thermal conductivity of heterogeneous systems with large representative elementary volumes is proposed. The laboratory experiment is based on the guarded hot plate principle but the heat transfer in the designed setup is generally 3D. Therefore, 3D computational modeling is applied for the analysis of heat transport in the system. The measuring procedure begins with the calibration which is performed using a material of the known thermal conductivity and typice specimen dimensions. Then, the experiment is carried out with the investigated specimen and the steady-state values of temperatures and heat fluxes in the characteristic positions are measured. The equivalent thermal conductivity is determined in an iterative procedure, utilizing the results of the laboratory experiment as input data of the computational model. The application of the propřed method is illustrated on an example of two types of advanced hollow clay bricks. The uncertain

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Thermal Sciences

ISSN

1290-0729

e-ISSN

—

Svazek periodika

86

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

9

Strana od-do

365-373

Kód UT WoS článku

000343378700034

EID výsledku v databázi Scopus

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