Simplified human thermoregulatory model for designing wearable thermoelectric devices

Article

Wijethunge, Dimuthu, Kim, Donggyu and Kim, Woochul. 2018. "Simplified human thermoregulatory model for designing wearable thermoelectric devices." Journal of Physics D: Applied Physics. 51. https://doi.org/10.1088/1361-6463/aaa17e
Article Title

Simplified human thermoregulatory model for designing wearable thermoelectric devices

ERA Journal ID1000
Article CategoryArticle
AuthorsWijethunge, Dimuthu, Kim, Donggyu and Kim, Woochul
Journal TitleJournal of Physics D: Applied Physics
Journal Citation51
Article Number055401
Number of Pages13
Year2018
PublisherIOP Publishing
Place of PublicationUnited Kingdom
ISSN0022-3727
1361-6463
Digital Object Identifier (DOI)https://doi.org/10.1088/1361-6463/aaa17e
Web Address (URL)https://iopscience.iop.org/article/10.1088/1361-6463/aaa17e/meta
Abstract

Research on wearable and implantable devices have become popular with the strong need in market. A precise understanding of the thermal properties of human skin, which are not constant values but vary depending on ambient condition, is required for the development of such devices. In this paper, we present simplified human thermoregulatory model for accurately estimating the thermal properties of the skin without applying rigorous calculations. The proposed model considers a variable blood flow rate through the skin, evaporation functions, and a variable convection heat transfer from the skin surface. In addition, wearable thermoelectric generation (TEG) and refrigeration devices were simulated. We found that deviations of 10–60% can be resulted in estimating TEG performance without considering human thermoregulatory model owing to the fact that thermal resistance of human skin is adapted to ambient condition. Simplicity of the modeling procedure presented in this work could be beneficial for optimizing and predicting the performance of any applications that are directly coupled with skin thermal properties.

Article Publishing Charge (APC) FundingOther
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020401607. Metals and alloy materials
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Byline AffiliationsYonsei University, Korea
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