Research Article
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Precision of Measurement of Water Vapor Resistance of Fabrics With Different Surface Roughness by a Skin Model

Year 2021, Volume: 31 Issue: 3, 214 - 219, 30.09.2021
https://doi.org/10.32710/tekstilvekonfeksiyon.852908

Abstract

Skin models are used for determination of water and thermal resistance of fabrics. Measurement in these instruments starts with determination of water vapour resistance of a boundary layer above the sweating hotplate. In the second step, the hotplate is covered by the tested fabrics and the instrument measures WV resistance of the fabric and that of boundary layer. Afterwards, the difference between these measurements presents the required WV resistance of the measured fabric, provided that WV resistance of the boundary layer is in both measurements identical. However, fabric surface roughness may change WV resistance of the boundary layer in the second measurement. In the paper, the effect of the fabric surface on measurement precision is theoretically analyzed and experimentally verified by procedure, which provides same air surface friction during both steps of the measurement. Experiments confirmed certain but small effect of the fabric surface roughness on the measurement precision.

Supporting Institution

Technical University of Liberec

Project Number

None

Thanks

Many thanks

References

  • 1. Mukhopadhyay A, Midha VK. 2008. A review on designing the waterproof breathable fabrics part I: Fundamental principles and designing aspects of breathable fabrics. J. Industrial Text. Vol: 37(3), pp: 225-262.
  • 2. Ertekin G, Marmarali A. 2011. Heat, air and water vapor transfer properties of circular knitted spacer Fabrics.Tekstil ve Konfeksiyon. Vol: 21(4), pp: 369–373.
  • 3. Matusiak M. 2006. Thermal Insulation Properties of Single and Multilayer Textiles, Fibres & Textiles in Eastern Europe. Vol: 14, 5(59), pp: 98-112.
  • 4. Hes L, Araujo M. 2010. Simulation of the effect of air gaps between the skin and a wet fabric on resulting cooling flow. Textile Res. J. 2010.Vol: 80(14), pp:1488–1497.
  • 5. Baczek-Boguslawska M, Hes L. 2013. The effective water vapour permeability of wet wool fabric and blended fabrics. Fibres & Textiles in Eastern Europe. Vol: 21, 1(97), pp: 67-71.
  • 6. Incropera FP, DeWitt PD. 2002. Fundamentals of heat and mass transfer. Willey, ISBN 0471386499, Cornell University. 7. Hes L., Baczek-Boguslawska M. 2018, November. The effect of surface roughness on determination of water vapour resistance of fabrics tested by a skin model. Proceedings of International Textile Conference CIRAT 8 (Ed. S. Benltoufa), Monastir, Tunisia.
  • 8 Rekova M. 2010. The effect of the fabric structure on its measurement of water vapour permeability according to the ISO11092 (in Czech, unpublished BSc Thesis), Technical university of Liberec.
Year 2021, Volume: 31 Issue: 3, 214 - 219, 30.09.2021
https://doi.org/10.32710/tekstilvekonfeksiyon.852908

Abstract

Project Number

None

References

  • 1. Mukhopadhyay A, Midha VK. 2008. A review on designing the waterproof breathable fabrics part I: Fundamental principles and designing aspects of breathable fabrics. J. Industrial Text. Vol: 37(3), pp: 225-262.
  • 2. Ertekin G, Marmarali A. 2011. Heat, air and water vapor transfer properties of circular knitted spacer Fabrics.Tekstil ve Konfeksiyon. Vol: 21(4), pp: 369–373.
  • 3. Matusiak M. 2006. Thermal Insulation Properties of Single and Multilayer Textiles, Fibres & Textiles in Eastern Europe. Vol: 14, 5(59), pp: 98-112.
  • 4. Hes L, Araujo M. 2010. Simulation of the effect of air gaps between the skin and a wet fabric on resulting cooling flow. Textile Res. J. 2010.Vol: 80(14), pp:1488–1497.
  • 5. Baczek-Boguslawska M, Hes L. 2013. The effective water vapour permeability of wet wool fabric and blended fabrics. Fibres & Textiles in Eastern Europe. Vol: 21, 1(97), pp: 67-71.
  • 6. Incropera FP, DeWitt PD. 2002. Fundamentals of heat and mass transfer. Willey, ISBN 0471386499, Cornell University. 7. Hes L., Baczek-Boguslawska M. 2018, November. The effect of surface roughness on determination of water vapour resistance of fabrics tested by a skin model. Proceedings of International Textile Conference CIRAT 8 (Ed. S. Benltoufa), Monastir, Tunisia.
  • 8 Rekova M. 2010. The effect of the fabric structure on its measurement of water vapour permeability according to the ISO11092 (in Czech, unpublished BSc Thesis), Technical university of Liberec.
There are 7 citations in total.

Details

Primary Language English
Subjects Wearable Materials
Journal Section Articles
Authors

Lubos Hes

Vinay Midha This is me

Project Number None
Publication Date September 30, 2021
Submission Date January 3, 2021
Acceptance Date September 1, 2021
Published in Issue Year 2021 Volume: 31 Issue: 3

Cite

APA Hes, L., & Midha, V. (2021). Precision of Measurement of Water Vapor Resistance of Fabrics With Different Surface Roughness by a Skin Model. Textile and Apparel, 31(3), 214-219. https://doi.org/10.32710/tekstilvekonfeksiyon.852908

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