Thermal performance of aerogel-embedded fibrous materials under convection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F18%3A00005928" target="_blank" >RIV/46747885:24220/18:00005928 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24410/18:00005928

Výsledek na webu

<a href="http://strutex.ft.tul.cz/2018/Phd/programme_STRUTEX_2018_International_PhD_student_day.pdf" target="_blank" >http://strutex.ft.tul.cz/2018/Phd/programme_STRUTEX_2018_International_PhD_student_day.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal performance of aerogel-embedded fibrous materials under convection

Popis výsledku v původním jazyce

This study presents an experimental investigation on the thermal performance of aerogel-embedded nonwoven fabrics under convection. Experiments were performed on a laboratory-made dynamic heat transfer measuring device. The real-time temperature curves of different materials with varying airflow velocities and heating conditions were compared and discussed. Results showed that under preheated conditions the aerogel-embedded nonwoven fabrics had very small temperature drops, fabrics with higher thickness and aerogel content required longer time to approach steady state and behaved better under convection. As for the continuous heating conditions, the heat transfer rate of each material showed an increasing trend with the increasing of airflow velocity. The aerogel-treated nonwoven, with lower fabric thickness and aerogel content, delivered significantly increased heat transfer rate at higher Reynolds number. Thicker fabrics with higher aerogel content can provide better insulation ability under convection.

Název v anglickém jazyce

Thermal performance of aerogel-embedded fibrous materials under convection

Popis výsledku anglicky

This study presents an experimental investigation on the thermal performance of aerogel-embedded nonwoven fabrics under convection. Experiments were performed on a laboratory-made dynamic heat transfer measuring device. The real-time temperature curves of different materials with varying airflow velocities and heating conditions were compared and discussed. Results showed that under preheated conditions the aerogel-embedded nonwoven fabrics had very small temperature drops, fabrics with higher thickness and aerogel content required longer time to approach steady state and behaved better under convection. As for the continuous heating conditions, the heat transfer rate of each material showed an increasing trend with the increasing of airflow velocity. The aerogel-treated nonwoven, with lower fabric thickness and aerogel content, delivered significantly increased heat transfer rate at higher Reynolds number. Thicker fabrics with higher aerogel content can provide better insulation ability under convection.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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