An experimental evaluation of convective heat transfer in multi-layered fibrous materials composed by different middle layer structures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F21%3A00006673" target="_blank" >RIV/46747885:24410/21:00006673 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24620/21:00006673
Result on the web
<a href="https://journals.sagepub.com/doi/full/10.1177/1528083719878845" target="_blank" >https://journals.sagepub.com/doi/full/10.1177/1528083719878845</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1177/1528083719878845" target="_blank" >10.1177/1528083719878845</a>

Result language
angličtina
Original language name
An experimental evaluation of convective heat transfer in multi-layered fibrous materials composed by different middle layer structures
Original language description
In this work, three types of multi-layered fibrous materials with different middle layer For Peer Review structures, including Struto nonwoven, Struto nonwoven with air pockets and Struto nonwoven with air pockets filled by aerogel particles, were prepared based on laser engraving technique and laminating method. A custom-built new device was fabricated to evaluate convective thermal behaviour of the multi-layered materials in cross flow. It was found that in cross flow the heat transfer coefficient of the multi-layered material with encapsulated aerogels is directly proportional to Reynolds number. There are considerable variances in heat transfer rates of the three structures at low airflow velocity (less than 10m/s), but the values are very close at high airflow velocity. It is concluded that the air pockets and aerogels present in the multi-layered fibrous material have significant effect on convective thermal behaviour of the overall structure in cross flow. The finding is a new contribution to the field of aerogel-based fibrous materials as thermal insulators in building and industrial facilities.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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