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

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dc.contributor.authorXiong, Xiaoman
dc.contributor.authorVenkataraman, Mohanapriya
dc.contributor.authorJašíková, Darina
dc.contributor.authorYang, Tao
dc.contributor.authorMishra, Rajesh
dc.contributor.authorMilitký, Jiří
dc.contributor.authorPetrů, Michal
dc.date.accessioned2019-10-22T07:07:49Z
dc.date.available2019-10-22T07:07:49Z
dc.date.issued2019-10
dc.description.abstractIn this work, three types of multi-layered fibrous materials with different middle layer 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 10 m/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.cs
dc.format.extent18 strancs
dc.identifier.doi10.1177/1528083719878845
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154041
dc.identifier.urihttps://journals.sagepub.com/doi/10.1177/1528083719878845
dc.language.isocscs
dc.publisherSAGE PUBLICATIONS INC, 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
dc.relation.ispartofJOURNAL OF INDUSTRIAL TEXTILES
dc.subjectNonwovencs
dc.subjectair pocketscs
dc.subjectaerogelcs
dc.subjectthermal behaviourcs
dc.subjectconvectioncs
dc.titleAn experimental evaluation of convective heat transfer in multi-layered fibrous materials composed by different middle layer structurescs
local.article.numberUNSP 1528083719878845
local.identifier.publikace6673
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