Joule Heating of Carbon-Based Materials Obtained by Carbonization of Para-Aramid Fabrics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F23%3A00011969" target="_blank" >RIV/46747885:24410/23:00011969 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2311-5629/9/1/23/pdf" target="_blank" >https://www.mdpi.com/2311-5629/9/1/23/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/c9010023" target="_blank" >10.3390/c9010023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Joule Heating of Carbon-Based Materials Obtained by Carbonization of Para-Aramid Fabrics

Popis výsledku v původním jazyce

The Joule heating behavior of carbon-based materials obtained by the process of carbonization of industrial para-aramid fabric wastes are investigated in the present work. Carbonization involves a process of thermally decomposing organic material, thereby altering its physical and chemical properties to obtain carbon-rich materials that are electrically conductive and display Joule heating behavior. The principle of Joule heating is based on the intrinsic electrical resistance of the material across an applied voltage. Here, para-aramid woven fabric wastes are converted into activated carbon materials through straightforward, controlled, single-step thermal treatments by three different kinds of atmosphere, i.e., in the CO2 evolved from charcoal, a mixture of gases from ammonium bicarbonate salt (NH4HCO3), and Nitrogen gas (N-2), respectively, inside a high-temperature furnace. The carbonization temperatures were varied from 800 to 1100 degrees C. The carbonization process variables were optimized to obtain carbon-rich materials with lower electrical resistivity. The results of electrical resistivity measurements show that for all three methods, the electrical resistivity decreases with increasing carbonization temperatures. An experimental setup consisting of an infrared (IR) camera, positioned over the surface of the fabric specimen to record the surface temperature of the material connected to a DC power supply, was employed. The kinetics of Joule heating and subsequent cooling were also analyzed at a fixed voltage of 5 V by recording the changes in surface temperature with respect to time. The heating-cooling cycle is described by a simple kinetic model of first order.

Název v anglickém jazyce

Joule Heating of Carbon-Based Materials Obtained by Carbonization of Para-Aramid Fabrics

Popis výsledku anglicky

The Joule heating behavior of carbon-based materials obtained by the process of carbonization of industrial para-aramid fabric wastes are investigated in the present work. Carbonization involves a process of thermally decomposing organic material, thereby altering its physical and chemical properties to obtain carbon-rich materials that are electrically conductive and display Joule heating behavior. The principle of Joule heating is based on the intrinsic electrical resistance of the material across an applied voltage. Here, para-aramid woven fabric wastes are converted into activated carbon materials through straightforward, controlled, single-step thermal treatments by three different kinds of atmosphere, i.e., in the CO2 evolved from charcoal, a mixture of gases from ammonium bicarbonate salt (NH4HCO3), and Nitrogen gas (N-2), respectively, inside a high-temperature furnace. The carbonization temperatures were varied from 800 to 1100 degrees C. The carbonization process variables were optimized to obtain carbon-rich materials with lower electrical resistivity. The results of electrical resistivity measurements show that for all three methods, the electrical resistivity decreases with increasing carbonization temperatures. An experimental setup consisting of an infrared (IR) camera, positioned over the surface of the fabric specimen to record the surface temperature of the material connected to a DC power supply, was employed. The kinetics of Joule heating and subsequent cooling were also analyzed at a fixed voltage of 5 V by recording the changes in surface temperature with respect to time. The heating-cooling cycle is described by a simple kinetic model of first order.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/GM21-32510M" target="_blank" >GM21-32510M: Pokročilé struktury pro tepelnou izolaci v extrémních podmínkách</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

C-JOURNAL OF CARBON RESEARCH

ISSN

2311-5629

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

1-15

Kód UT WoS článku

000957332400001

EID výsledku v databázi Scopus

2-s2.0-85168609795