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Evaporative resistance measurements on a new solution of foot orthosis

In English

Författare

  • Kalev Kuklane
  • Kurt Cutbill
  • Johan Wieslander

Redaktör

  • Shin-ichi Tanabe

Summary, in English

The traditional orthosis are tight and allow minimal evaporation. A new prototype was designed. The thermal foot model tests were carried out at isothermal (Ts=Ta=34 °C) and non-isothermal (Ta=23 °C) conditions with relative humidity set to 17 and 41 %, respectively, and at air velocities of 0.25 (LVa) and 0.85 m/s (HVa). Evaporative resistance (Ret) was calculated based on foot model’s heat loss and mass loss. The total insulation of the new orthosis increased compared to the old one by 28 % and total resultant insulation by 17 % (LVa). Ret based on model heat loss (isothermal condition) decreased 30 (LVa) and 42 % (HVa), while the one by mass loss reduced 3.2 (HVa) and 6.6 (LVa) times. The method can be used to evaluate insulation and evaporative resistance of footwear. The purpose of the tests should define the choice of the specific method.

Publiceringsår

2012

Språk

Engelska

Publikation/Tidskrift/Serie

Proceedings of 9th International Meeting for manikins and Modeling (9I3M)

Dokumenttyp

Konferensbidrag

Förlag

Waseda University

Ämne

  • Production Engineering, Human Work Science and Ergonomics

Nyckelord

  • Thermal foot model
  • insulation
  • air velocity
  • mass loss
  • heat loss

Conference name

9th International Meeting for Manikins and Modeling

Conference date

2012-08-21 - 2012-08-24

Conference place

Tokyo, Japan

Status

Published

Forskningsgrupp

  • Thermal Environment Laboratory