Hygro-thermo-electrical modeling of transport phenomena in aluminosilicate composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322299" target="_blank" >RIV/68407700:21110/18:00322299 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/1.5043731" target="_blank" >https://doi.org/10.1063/1.5043731</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5043731" target="_blank" >10.1063/1.5043731</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hygro-thermo-electrical modeling of transport phenomena in aluminosilicate composites

Popis výsledku v původním jazyce

Alkali-activated building materials with sufficiently high electrical conductivity are able to generate Joule heat which can be utilized in practical applications, e.g. for construction of heating elements incorporated to pavements, roads or bridges. Convenient electric properties of such materials are usually achieved by addition of a sufficient amount of electrically conductive admixtures to the reference material. Situation is relatively simple in case of dry materials: electrical conductivity and therefore heating ability is influenced just by electron charge carriers. However, thermal and electric properties of porous materials partially or fully saturated are significantly affected by water present in porous structure. With increasing amount of water, the effective electrical conductivity and the effective thermal conductivity increases with increasing amount of water due to substitution of air present in pores in dry state by water in partially or fully saturated state. Therefore, model taking into consideration coupled transport of mass, heat and electric charge needs to be used to assess heating ability of wet porous materials influenced by external electric voltage. In this paper, such model is outlined in theoretical way.

Název v anglickém jazyce

Hygro-thermo-electrical modeling of transport phenomena in aluminosilicate composites

Popis výsledku anglicky

Alkali-activated building materials with sufficiently high electrical conductivity are able to generate Joule heat which can be utilized in practical applications, e.g. for construction of heating elements incorporated to pavements, roads or bridges. Convenient electric properties of such materials are usually achieved by addition of a sufficient amount of electrically conductive admixtures to the reference material. Situation is relatively simple in case of dry materials: electrical conductivity and therefore heating ability is influenced just by electron charge carriers. However, thermal and electric properties of porous materials partially or fully saturated are significantly affected by water present in porous structure. With increasing amount of water, the effective electrical conductivity and the effective thermal conductivity increases with increasing amount of water due to substitution of air present in pores in dry state by water in partially or fully saturated state. Therefore, model taking into consideration coupled transport of mass, heat and electric charge needs to be used to assess heating ability of wet porous materials influenced by external electric voltage. In this paper, such model is outlined in theoretical way.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

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

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International Conference on Numerical Analysis and Applied Mathematics 2017 (ICNAAM-2017)

ISBN

978-0-7354-1690-1

ISSN

—

e-ISSN

0094-243X

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Thessaloniki

Datum konání akce

25. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000445105400080