Modeling of Heat Evolution in Silicate Building Materials with Electrically Conductive Admixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00304730" target="_blank" >RIV/68407700:21110/16:00304730 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4968751" target="_blank" >http://dx.doi.org/10.1063/1.4968751</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4968751" target="_blank" >10.1063/1.4968751</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling of Heat Evolution in Silicate Building Materials with Electrically Conductive Admixtures

Popis výsledku v původním jazyce

Silicate building materials are electrically non-conductive, in general. However, a sufficient amount of electrically conductive admixtures can significantly increase their electrical conductivity. Consequently, new practical applications of such materials are available. Materials with enhanced electrical properties can be used as self-sensing sensors monitoring evolution of cracks, electromagnetic shields or cores of deicing systems. This paper deals with the modeling of heat evolution in silicate building materials by the action of passing electric current. Due to the conducting paths formed in the material's matrix by adding a sufficient amount of electrically conductive admixture and applying electric voltage on the installed electrodes, electric current is passing through the material. Thanks to the electric current, Joule heat is successively evolved. As it is crucial to evaluate theoretically the amount of evolved heat in order to assess the effectiveness of such a system, a model describing the Joule heat evolution is proposed and a modeling example based on finite-element method is introduced.

Název v anglickém jazyce

Modeling of Heat Evolution in Silicate Building Materials with Electrically Conductive Admixtures

Popis výsledku anglicky

Silicate building materials are electrically non-conductive, in general. However, a sufficient amount of electrically conductive admixtures can significantly increase their electrical conductivity. Consequently, new practical applications of such materials are available. Materials with enhanced electrical properties can be used as self-sensing sensors monitoring evolution of cracks, electromagnetic shields or cores of deicing systems. This paper deals with the modeling of heat evolution in silicate building materials by the action of passing electric current. Due to the conducting paths formed in the material's matrix by adding a sufficient amount of electrically conductive admixture and applying electric voltage on the installed electrodes, electric current is passing through the material. Thanks to the electric current, Joule heat is successively evolved. As it is crucial to evaluate theoretically the amount of evolved heat in order to assess the effectiveness of such a system, a model describing the Joule heat evolution is proposed and a modeling example based on finite-element method is introduced.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA16-00567S" target="_blank" >GA16-00567S: Alkalicky aktivované aluminosilikátové kompozity se zvýšenou elektrickou vodivostí</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the International Conference of Computational Methods in Sciences and Engineering 2016 (ICCMSE-2016)

ISBN

978-0-7354-1454-9

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Athens

Datum konání akce

17. 4. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000389449900114