Simplified human thermoregulatory model for designing wearable thermoelectric devices

Dimuthu Wijethunge, Donggyu Kim, Woochul Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish
Article number055401
JournalJournal of Physics D: Applied Physics
Volume51
Issue number5
DOIs
Publication statusPublished - 2018 Jan 15

Fingerprint

Skin
thermodynamic properties
estimating
Thermodynamic properties
thermal resistance
blood flow
convection
flow velocity
heat transfer
evaporation
deviation
Heat convection
Refrigeration
Heat resistance
Evaporation
Blood
Flow rate

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

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Simplified human thermoregulatory model for designing wearable thermoelectric devices. / Wijethunge, Dimuthu; Kim, Donggyu; Kim, Woochul.

In: Journal of Physics D: Applied Physics, Vol. 51, No. 5, 055401, 15.01.2018.

Research output: Contribution to journalArticle

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