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Evaporative resistance measurements on a new solution of foot orthosis

Kuklane, Kalev LU ; Cutbill, Kurt and Wieslander, Johan (2012) 9th International Meeting for Manikins and Modeling In [Host publication title missing]
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Thermal foot model, insulation, air velocity, mass loss, heat loss
in
[Host publication title missing]
editor
Tanabe, Shin-ichi
pages
6 pages
publisher
Waseda University
conference name
9th International Meeting for Manikins and Modeling
language
English
LU publication?
yes
id
63f05177-583b-4149-b6ff-3b47c9024d60 (old id 3166280)
date added to LUP
2012-12-03 10:20:43
date last changed
2016-04-16 10:28:48
@misc{63f05177-583b-4149-b6ff-3b47c9024d60,
  abstract     = {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.},
  author       = {Kuklane, Kalev and Cutbill, Kurt and Wieslander, Johan},
  editor       = {Tanabe, Shin-ichi},
  keyword      = {Thermal foot model,insulation,air velocity,mass loss,heat loss},
  language     = {eng},
  pages        = {6},
  publisher    = {ARRAY(0x909cf18)},
  series       = {[Host publication title missing]},
  title        = {Evaporative resistance measurements on a new solution of foot orthosis},
  year         = {2012},
}