Transient heat transfer in human skin

Richardson, P. D.; Whitelaw, J. H.

doi:10.1016/0016-0032(68)90503-6

Cited by 16 publications

(6 citation statements)

References 6 publications

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“…1c). Thermodynamically, the human body is a low-temperature heat reservoir ( T body ≈ 37 °C) that emits thermal energy at the rate of ~25 mW/cm 2 into the ambient atmosphere 39,40 . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Ultra-high performance wearable thermoelectric coolers with less materials

et al. 2019

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Thermoelectric coolers are attracting significant attention for replacing age-old cooling and refrigeration devices. Localized cooling by wearable thermoelectric coolers will decrease the usage of traditional systems, thereby reducing global warming and providing savings on energy costs. Since human skin as well as ambient air is a poor conductor of heat, wearable thermoelectric coolers operate under huge thermally resistive environment. The external thermal resistances greatly influence thermoelectric material behavior, device design, and device performance, which presents a fundamental challenge in achieving high efficiency for on-body applications. Here, we examine the combined effect of heat source/sink thermal resistances and thermoelectric material properties on thermoelectric cooler performance. Efficient thermoelectric coolers demonstrated here can cool the human skin up to 8.2 °C below the ambient temperature (170% higher cooling than commercial modules). Cost-benefit analysis shows that cooling over material volume for our optimized thermoelectric cooler is 500% higher than that of the commercial modules.

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Section: Resultsmentioning

confidence: 99%

Ultra-high performance wearable thermoelectric coolers with less materials

et al. 2019

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“…In the application of wearable devices, Suarez [ 142 ] found that TE modules with FF lower than 20% are more suitable for on-body use. Due to the poor thermal conductivity (0.3 W/mK) [ 143 ] and limited heat flux [ 144 ] of human skin, TE in a body-contact condition will go through a low heat load and high thermal resistance, which increase the challenge in achieving high cooling efficiency. Commercial TE coolers usually have FF greater than 25% and AR around 1.0 that are less favorable for on-body use.…”

Section: Thermoelectric Systemsmentioning

confidence: 99%

Advanced materials for personal thermal and moisture management of health care workers wearing PPE

Lou

Chen

Fan

2021

Materials Science and Engineering: R: Reports

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“…Through a study on a model of the human head, the problem of heat conduction in the head was examined by Richardson and Whitelaw [2]. It was pointed out by Colin et al [3] that the temperature of the environment has a significant effect on the conduction of heat inside the cranium.…”

Section: Lntroduetionmentioning

confidence: 99%

Stresses in the human head generated due to thermogenesis

Misra

1986

Rheol Acta

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Of concern in the paper is a study of the stresses in a human head, developed due to thermogenesis. As in most of earlier studies, the human head is modelled as an elastic spherica! shell. The temperature at any point of the skull has been considered to be a function of both the radial and angular coordinates. The analysis is carried out for a general power law variation of the heat produced in the head, so that the derived expressions can be used to study the response due to different environmental temperatures. The applicability of the analysis has been illustrated through an attempt to compute the stress-variation at different angular distances.

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Transient heat transfer in human skin

Cited by 16 publications

References 6 publications

Ultra-high performance wearable thermoelectric coolers with less materials

Ultra-high performance wearable thermoelectric coolers with less materials

Advanced materials for personal thermal and moisture management of health care workers wearing PPE

Stresses in the human head generated due to thermogenesis

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