System Design of Cold Weather Protective Clothing

Kasturiya, Nishkam; Subbulakshmi, M.S.; Gupta, S.C.; Raj, Hans

doi:10.14429/dsj.49.3860

Cited by 18 publications

(10 citation statements)

References 2 publications

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“…Down feathers are primarily responsible for thermal insulation, which is attributed to their hierarchical foam-based structure creating large surface areas for trapping heat. Some academics have posited that Eiderdown, in particular, is the most thermally insulating natural material in the world ( Kasturiya et al., 1999 ). Down benefits from an impressive strength-to-weight ratio ( Gao et al., 2007 ; Havenith, 2010 ), compressibility ( Gao et al., 2010 ), and compression recovery ( Martin, 1987 ), making it invaluable as bodily insulation in extreme environments.…”

Section: Bioinspired Materials Based On Keratinous Systemsmentioning

confidence: 99%

Engineering with keratin: A functional material and a source of bioinspiration

et al. 2021

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Summary Keratin is a highly multifunctional biopolymer serving various roles in nature due to its diverse material properties, wide spectrum of structural designs, and impressive performance. Keratin-based materials are mechanically robust, thermally insulating, lightweight, capable of undergoing reversible adhesion through van der Waals forces, and exhibit structural coloration and hydrophobic surfaces. Thus, they have become templates for bioinspired designs and have even been applied as a functional material for biomedical applications and environmentally sustainable fiber-reinforced composites. This review aims to highlight keratin's remarkable capabilities as a biological component, a source of design inspiration, and an engineering material. We conclude with future directions for the exploration of keratinous materials.

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Section: Bioinspired Materials Based On Keratinous Systemsmentioning

confidence: 99%

Engineering with keratin: A functional material and a source of bioinspiration

et al. 2021

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“…1 Hes et al 2 theoretically analysed the heat transfer through single-layer nonwoven and found that conduction and radiation as dominating modes of heat transfer. Kasturiya et al 3 reported that multilayer clothing provides proper insulation in different operating conditions and comfort to the wearer in extreme cold weather conditions. Further, multilayer clothing can reduce the weight and thickness of the clothing ensemble.…”

Section: Introductionmentioning

confidence: 99%

Effect of layering sequence and ambient temperature on thermal insulation of multilayer high bulk nonwoven under extreme cold temperatures

Dupade

Kumari

Premachandran

et al. 2022

Journal of Industrial Textiles

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In extreme cold weather clothing ensemble, multiple layers of high bulk nonwovens are used to provide thermal insulation to the wearer. In this work, the effect of layering sequence in multi-layered high bulk thermal bonded nonwoven assembly on its thermal resistance is evaluated experimentally under sub-zero temperatures. Two multi-layered nonwovens, one made up of 1.4 denier solid (1.4 D S), 6 denier hollow (6 D H) and 15 denier hollow (15 D H) and the second made up of 3 denier hollow (3 D H), 6 denier hollow (6 D H) and 15 denier hollow (15 D H) polyester fibres were studied. The experiments were performed in a climatic chamber in the temperature range of 310 K to 210 K. Numerical simulations were carried out assuming heat transfer through the nonwovens as one-dimensional coupled conduction-radiation. The numerical methodology was developed using theoretical relations available in the literature to estimate the steady-state temperature profiles through the nonwoven layers and were validated using experimental data. The concurrence of experimental and numerical temperature profiles justifies the numerical methodology adopted in this work. Thermal resistance provided by the high bulk nonwoven increases with a decrease in ambient temperature. It is found that the thermal conductivity of nonwoven layers decreases from inner-to outer layers at a given ambient temperature. The heat flux through nonwoven layers, overall thermal conductivity and the thermal resistance of multi-layer nonwoven are independent of layering sequence if the convective heat transfer is extremely low.

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“…In Russia traditionally, wool is used to make clothes and shoes, since the climate is cold in winter. System design of cold weather protective clothing is described in works by Denner (1993) and Kasturiya, Subbulakshm, Gupta, and Raj (1999). The introduction of the new layers in the combat boot reduces, when compared to the usual combat boots, significantly the thermal strain and its weight.…”

Section: Introductionmentioning

confidence: 99%

The Selection of Requirements at Special Shoes Design

Fatkullina¹,

Abutalipova²,

Sheraliev³

2019

Fundamental and Applied Problems of Materials Creation and Phases of Technologies for Textile Industry

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In some cases, it is necessary to use shoes elements based on polymers that can protect the foot from mechanical damage (punctures). The choice of rubbers for these purposes together with the intermediate polymer layer is due to the highly elastic and waterproof properties of the elastomers, as well as the anti-puncture properties of the aramid material, which ensure almost unchanged flexibility of the sole. The use as an alternative for these purposes of individual anti-puncture insoles is associated with certain material, technological difficulties and labor costs. So, it is necessary to develop a technological process creating a composite material providing protective properties for boots. Expert analysis is used when the requirements for design of special shoes are determined. The possibility of creating soles from composite material was tested. The composite material consists of three components: felt, polymeric textile and rubber. The adhesion is provided by the process of hot rubber vulcanization.

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System Design of Cold Weather Protective Clothing

Cited by 18 publications

References 2 publications

Engineering with keratin: A functional material and a source of bioinspiration

Engineering with keratin: A functional material and a source of bioinspiration

Effect of layering sequence and ambient temperature on thermal insulation of multilayer high bulk nonwoven under extreme cold temperatures

The Selection of Requirements at Special Shoes Design

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