EXPERIMENTAL AND THEORETICAL APPROACH TO DETERMINATION OF HEAT EVOLUTION IN ELECTRICALLY CONDUCTIVE ALUMINOSILICATES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00324629" target="_blank" >RIV/68407700:21110/20:00324629 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.2298/TSCI180327313F" target="_blank" >https://doi.org/10.2298/TSCI180327313F</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2298/TSCI180327313F" target="_blank" >10.2298/TSCI180327313F</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EXPERIMENTAL AND THEORETICAL APPROACH TO DETERMINATION OF HEAT EVOLUTION IN ELECTRICALLY CONDUCTIVE ALUMINOSILICATES

Popis výsledku v původním jazyce

Design of progressive building materials with increased utility value is the key issue for the development of reliable modern building structures. Compared to the conventional materials, progressive building materials are supposed to exhibit not just adequate mechanical, and thermal properties, but they are also supposed to be applicable in sophisticated solutions, such as in self-sensing, self-heating or magnetic-shielding systems. In terms of electric properties, the most of building materials are electric insulators which is the main limiting factor for their applicability in such sophisticated solutions. However, this deficiency can be solved by the addition of a proper amount of electrically conductive admixtures. Within the paper, electrically conductive alkali-activated aluminosilicate with 8.89 mass% of carbon black admixture was designed and its materials properties necessary for calculations of heat evolution by the action of an electric source were experimentally determined. The electrical conductivity of such material equal to 5.57x10-2 S m-1 was sufficiently high to ensure self-heating ability. It was observed good agreement of experimentally determined data with those modeled by means of heat equation on sample with dimensions 40 x 40 x 10 mm. Finally, one- and two-layered large-scaled heating elements based on materials with experimentally determined properties were designed and calculations were conducted to determine the voltage level necessary for one-hour heating from 268.15 K and 273.15 K to 278.15 K in the middle-top point of the construction.

Název v anglickém jazyce

EXPERIMENTAL AND THEORETICAL APPROACH TO DETERMINATION OF HEAT EVOLUTION IN ELECTRICALLY CONDUCTIVE ALUMINOSILICATES

Popis výsledku anglicky

Design of progressive building materials with increased utility value is the key issue for the development of reliable modern building structures. Compared to the conventional materials, progressive building materials are supposed to exhibit not just adequate mechanical, and thermal properties, but they are also supposed to be applicable in sophisticated solutions, such as in self-sensing, self-heating or magnetic-shielding systems. In terms of electric properties, the most of building materials are electric insulators which is the main limiting factor for their applicability in such sophisticated solutions. However, this deficiency can be solved by the addition of a proper amount of electrically conductive admixtures. Within the paper, electrically conductive alkali-activated aluminosilicate with 8.89 mass% of carbon black admixture was designed and its materials properties necessary for calculations of heat evolution by the action of an electric source were experimentally determined. The electrical conductivity of such material equal to 5.57x10-2 S m-1 was sufficiently high to ensure self-heating ability. It was observed good agreement of experimentally determined data with those modeled by means of heat equation on sample with dimensions 40 x 40 x 10 mm. Finally, one- and two-layered large-scaled heating elements based on materials with experimentally determined properties were designed and calculations were conducted to determine the voltage level necessary for one-hour heating from 268.15 K and 273.15 K to 278.15 K in the middle-top point of the construction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

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

2020

Kód důvěrnosti údajů

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

Název periodika

Thermal Science

ISSN

0354-9836

e-ISSN

2334-7163

Svazek periodika

24

Číslo periodika v rámci svazku

2A

Stát vydavatele periodika

CS - Srbsko a Černá Hora

Počet stran výsledku

8

Strana od-do

787-794

Kód UT WoS článku

000522446200012

EID výsledku v databázi Scopus

2-s2.0-85086716538