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Statements

Subject Item
n2:RIV%2F46747885%3A24220%2F14%3A%230003161%21RIV15-MSM-24220___
rdf:type
skos:Concept n17:Vysledek
rdfs:seeAlso
http://jit.sagepub.com/search/results?fulltext=jasikova&x=0&y=0&submit=yes&journal_set=spjit&src=selected&andorexactfulltext=and
dcterms:description
Nonwoven fabrics and aerogel have complementary properties required for good thermal insulation. In this work, the polyester/polyethylene nonwoven thermal wraps treated with amorphous silica aerogel are studied and characterized with regard to thermodynamical properties at subzero temperatures. The characterization of physical structure was done by scanning electron microscope. C-Therm TCi thermal conductivity analyzer was used to measure thermal properties like conductivity, resistance, and effusivity at subzero temperatures. Heat transfer caused by convection through the thermal wraps was measured by particle image velocimetry technique, which allows obtaining information about the current distribution of velocities in two-dimensional array in a flowing fluid. Vector and scalar maps of the fluid flow were caused by thermal convection. The samples were studied for different temperature gradients. On scientific evaluation of results, thermal conductivity and thermal effusivity were found to be differing with respect to different temperatures and fabric density. Thermal resistance showed an increase as the fabric thickness increases. It was observed that fabric density and the aerogel present in the structures have a significant effect on thermal properties of aerogel-treated nonwoven fabrics. The findings in this study are significant and can be used for further research in aerogel-treated nonwoven fabrics. Nonwoven fabrics and aerogel have complementary properties required for good thermal insulation. In this work, the polyester/polyethylene nonwoven thermal wraps treated with amorphous silica aerogel are studied and characterized with regard to thermodynamical properties at subzero temperatures. The characterization of physical structure was done by scanning electron microscope. C-Therm TCi thermal conductivity analyzer was used to measure thermal properties like conductivity, resistance, and effusivity at subzero temperatures. Heat transfer caused by convection through the thermal wraps was measured by particle image velocimetry technique, which allows obtaining information about the current distribution of velocities in two-dimensional array in a flowing fluid. Vector and scalar maps of the fluid flow were caused by thermal convection. The samples were studied for different temperature gradients. On scientific evaluation of results, thermal conductivity and thermal effusivity were found to be differing with respect to different temperatures and fabric density. Thermal resistance showed an increase as the fabric thickness increases. It was observed that fabric density and the aerogel present in the structures have a significant effect on thermal properties of aerogel-treated nonwoven fabrics. The findings in this study are significant and can be used for further research in aerogel-treated nonwoven fabrics.
dcterms:title
Thermodynamics of aerogel-treated nonwoven fabrics at subzero temperatures Thermodynamics of aerogel-treated nonwoven fabrics at subzero temperatures
skos:prefLabel
Thermodynamics of aerogel-treated nonwoven fabrics at subzero temperatures Thermodynamics of aerogel-treated nonwoven fabrics at subzero temperatures
skos:notation
RIV/46747885:24220/14:#0003161!RIV15-MSM-24220___
n3:aktivita
n12:S n12:P n12:I n12:N
n3:aktivity
I, N, P(LO1201), S
n3:cisloPeriodika
0
n3:dodaniDat
n5:2015
n3:domaciTvurceVysledku
n14:5003733
n3:druhVysledku
n7:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
50396
n3:idVysledku
RIV/46747885:24220/14:#0003161
n3:jazykVysledku
n20:eng
n3:klicovaSlova
Aerogel; thermal insulation; effusivity; thermal conductivity analyzer; particle image velocimetry; heat convection; nonwoven fabrics
n3:klicoveSlovo
n6:nonwoven%20fabrics n6:thermal%20insulation n6:effusivity n6:heat%20convection n6:thermal%20conductivity%20analyzer n6:Aerogel n6:particle%20image%20velocimetry
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[BAF71823FE13]
n3:nazevZdroje
Journal of Industrial Textiles
n3:obor
n8:BJ
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n4:LO1201
n3:rokUplatneniVysledku
n5:2014
n3:svazekPeriodika
2014
n3:tvurceVysledku
Venkataraman, Mohanapriya Jašíková, Darina Kotresh, T M Mishra, Rajesh Militký, Jiří
s:issn
1528-0837
s:numberOfPages
18
n15:doi
10.1177/1528083714534711
n19:organizacniJednotka
24220