FE analysis of thermal properties of woven fabric constructed by yarn incorporated with microencapsulated phase change materials

Iqbal, Kashif; Sun, Danmei; Stylios, George K; Lim, Theodore; Corne, David

doi:10.1007/s12221-015-5607-0

Cited by 11 publications

(7 citation statements)

References 24 publications

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“…are implemented in the program. The mesh is made by four tetrahedral linear nodes as shown in the work of (Iqbal et al, 2015). The initial conditions are applied for the whole model and the boundary conditions are applied on one face of the composite as in the experimental work.…”

Section: Finite Element Modeling In Abaqus Caementioning

confidence: 99%

Thermo- physics behaviour of raphia vinifera/ Epoxy woven material: Experimental and theoretical approach

Djoumessi

Tagne

Tiaya

et al. 2023

Preprint

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This work deals with the analysis of the thermo-physical behavior of the raffia vinifiera/Epoxy bio-composite. The material is elaborated then, the thermal and physical properties are determined experimentally and theoretically. The experimental analysis of the thermal behavior is done by the hot plate method and that of the physical behavior it is done by the measuring the density and the kinetics of absorption which is used to evaluate the rate of absorption and the diffusion of water. The theoretical analysis, on the thermal conductivity used the model of Ning/Chou to homogenize the coefficient of conductivity and the method of finite elements in the software Abaqus C.A.E 6.14 to simulate the heat transfer through the composite; the theoretical determination of the density is done using the equation of Agrawal and Broutman. This work shows that the results obtained in experimental approach corroborate well with the theoretical ones. Moreover, this material presents very interesting characteristics such as a very low thermal conductivity which makes it a good insulating material on the one hand and on the other hand a low density (light and less absorbent material) compared to the wood species used in shipbuilding; thus, it is a suitable material for the construction of the superstructure of floating boats.

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Section: Finite Element Modeling In Abaqus Caementioning

confidence: 99%

Thermo- physics behaviour of raphia vinifera/ Epoxy woven material: Experimental and theoretical approach

Djoumessi

Tagne

Tiaya

et al. 2023

Preprint

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“…And yet, in Wei Ju's and Bhattacharjee's model, less consideration is given to the series and parallel mixing characteristics of yarn and surrounding air and the possibility when the air layer around yarn is squeezed. Some researchers (Kashif et al, 2015;Yang et al, 2019;Siddiqui and Sun, 2013) constructed three dimensional simulation models using finite element software to investigate the thermal transfer mechanism of fabrics based on microscale yarns geometrical structure or even to analysis the fabric's thermal properties with microencapsulated phase change materials. The result of simulation after postprocessing has been validated against experimental result.…”

Section: Introductionmentioning

confidence: 99%

Modeling and influence on effective thermal conductivity of woven fabrics based on structure parameters

Yang,

Wang,

Yan

et al. 2023

IJCST

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PurposeThe heat transfer properties play significant roles in the thermal comfort of the clothing products. The purpose of this paper is to find the relationship between heat transfer properties and fabrics' structure, yarn properties and predict the effective thermal conductivity of single layer woven fabrics by a parametric mathematical model.Design/methodology/approachFirst, the weave unit was divided into four types of element regions, including yarn overlap regions, yarn crossing regions, yarn floating regions and pore regions. Second, the number and area proportion of each region were calculated respectively. Some formulas were created to calculate the effective thermal conductivity of each element region based on serial model, parallel model or series–parallel mixing model. Finally, according to the number and area proportion of each region in weave unit, the formulas were established to calculate the fabric overall effective thermal conductivity in thickness direction based on the parallel models.FindingsThe influences of yarn spacing, yarn width, fabric thickness, the compressing coefficients of air layers and weave type on the effective thermal conductivity were further discussed respectively. In this model, the relationships between the effective thermal conductivity and each parameter are some polynomial fitting curves with different orders. Weave type affects the change of effective thermal conductivity mainly through the numbers of different elements and their area ratios.Originality/valueIn this model, the formulas were created respectively to calculate the effective thermal conductivity of each element region and whole weave unit. The serial–parallel mixing characteristics of yarn and surrounding air are considered, as well as the compression coefficients of air layers. The results of this study can be further applied to the optimal design of mixture fabrics with different warp and filling yarn densities or different yarn thermal properties.

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“…Encapsulation techniques (e.g., microencapsulation, nanoencapsulation and macroencapsulation) provide opportunities to prepare advanced PCMs with a greater heat transfer area, reduce reactivity with outside environment and control volume changes during the phase transition [ 1 ]. Therefore, microencapsulated PCMs are being applied widely in many fields including thermal-regulated fibers and fabrics [ 2 , 3 ], intelligent buildings [ 4 , 5 ], thermal energy storage [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ] and so on.…”

Section: Introductionmentioning

confidence: 99%

Microencapsulated Comb-Like Polymeric Solid-Solid Phase Change Materials via In-Situ Polymerization

Geng²,

Huang³

et al. 2018

Polymers

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Abstract:To enhance the thermal stability and permeability resistance, a comb-like polymer with crystallizable side chains was fabricated as solid-solid phase change materials (PCMs) inside the cores of microcapsules and nanocapsules prepared via in-situ polymerization. In this study, the effects on the surface morphology and microstructure of micro/nanocapsules caused by microencapsulating different types of core materials (i.e., n-hexadecane, ethyl hexadecanoate, hexadecyl acrylate and poly(hexadecyl acrylate)) were systematically studied via field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM). The confined crystallization behavior of comb-like polymer PCMs cores was investigated via differential scanning calorimeter (DSC). Comparing with low molecular organic PCMs cores, the thermal stability of PCMs microencapsulated comb-like polymer enhanced significantly, and the permeability resistance improved obviously as well. Based on these resultant analysis, the microencapsulated comb-like polymeric PCMs with excellent thermal stability and permeability resistance showed promising foreground in the field of organic solution spun, melt processing and organic coating.

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FE analysis of thermal properties of woven fabric constructed by yarn incorporated with microencapsulated phase change materials

Cited by 11 publications

References 24 publications

Thermo- physics behaviour of raphia vinifera/ Epoxy woven material: Experimental and theoretical approach

Thermo- physics behaviour of raphia vinifera/ Epoxy woven material: Experimental and theoretical approach

Modeling and influence on effective thermal conductivity of woven fabrics based on structure parameters

Microencapsulated Comb-Like Polymeric Solid-Solid Phase Change Materials via In-Situ Polymerization

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