Heat, Moisture and Air Transport Properties of Pillow Padding

ln order to design thermally desirable pillows, we must quantitatively evaluate the heat, moisture and air transport properties of the padding materials. ln this study, we measured the effective thermal conductivity, air resistance and heat transfer property combined with moisture transfer for some...

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Bibliographic Details
Published inNetsu Bussei Vol. 12; no. 4; pp. 198 - 204
Main Authors Nakanishi, Masae, Yokura, Hiroko, Niwa, Masako
Format Journal Article
LanguageEnglish
Published JAPAN SOCIETY OF THERMOPHYSICAL PROPERTIES 31.10.1998
Subjects
air resistance
effective thermal conductivity
moisture transfer
padding material
pillow
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Summary:ln order to design thermally desirable pillows, we must quantitatively evaluate the heat, moisture and air transport properties of the padding materials. ln this study, we measured the effective thermal conductivity, air resistance and heat transfer property combined with moisture transfer for some fibrous materials such as polyester and wool, feather, buckwheat chaff, some types of polyethylene pipe and hollow bead, gravel, red beans, etc. These measurements clarified the range of the values for these properties and the characteristics of each type of padding, for example, we found that fibrous materials had smaller values for effective thermal conductivity and larger values for air resistance, while hollow beads had smaller values for air resistance. The relation between these properties and the shape and composition of the padding, and its air spaces were discussed from the viewpoint of the design of the padding materials.
ISSN:0913-946X
1881-414X
DOI:10.2963/jjtp.12.198