Research on the human heat transfer model of Chinese pilots and experimental verification of model correctness

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S.I.: NEW TRENDS IN BRAIN-COMPUTER INTERFACE FOR HUMAN-ROBOT INTERACTION

Research on the human heat transfer model of Chinese pilots and experimental verification of model correctness Sina Dang1 • Hongjun Xue1 • Xiaoyan Zhang1 • Chengwen Zhong1 • Caiyong Tao1 Received: 18 April 2020 / Accepted: 7 August 2020 Ó Springer-Verlag London Ltd., part of Springer Nature 2020

Abstract A three-dimensional human heat transfer model has been improved based on Chinese pilots’ anthropometric data. The temperature distribution of pilots can be simulated by this model. The improved model to simulate the variation of temperature distribution over time in pilots is adopted. To verify the model, an experimental study on temperature distribution of human body is carried out in this paper. The human heat transfer model built in the paper considering heat production from food and blood resistance can simulate the temperature distribution of Chinese pilots. Keywords Thermoregulation model  Heat transfer  Chinese pilots  Blood resistance  Heat production from food List of symbols C Convection (W/m2) Cs Cutaneous vasoconstriction (m2) Crsp Convective heat loss by respiration (W/m2) CI Rejection domain Dl Cutaneous vasodilatation D Mean error between model and experiment  Mean value of errors between simulation and D experiment E Heat transfer flux by evaporation (W/m2) Ersp Evaporative heat loss by respiration (W/m2) ESW Evaporative heat loss by swear (W/m2) L The length of blood vessels (m) Mbði;kÞ;0 Basal metabolic heat production (W/m2)

& Hongjun Xue [email protected] Sina Dang [email protected] Xiaoyan Zhang [email protected] Chengwen Zhong [email protected] Caiyong Tao [email protected] 1

Department of Fluid Mechanics, School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China

Mbði;kjÞ Mbði;1jÞ;spa M MSði;kÞ P Psk Pa Pair R Rcl Recl SR Sh Sw Resði;1jÞ Tperl T TR Tair Tsk;i Tk0;i

Metabolic rate (W/m3) Metabolic rate of the food (W/m3) Basal metabolic production of whole body (W/m3) The extra heat rate by shiver (W/m3) The press of blood Water vapor pressure at the skin surface temperature (Pa) Partial water vapor pressure at the environment temperature (Pa) Partial water vapor pressure at the environment temperature (Pa) Radiation (W/m2) Thermal resistance of cloth (W/m2 K) Resistance to evaporation imposed by cloths (W/m2 Pa) Irradiation of high-temperature objects (W/ m2) Shiver Swear Breathes (W/m2) Perfusion tissue temperature (°C) Temperature (°C) The increase in temperature by peripheral resistance (°C) Air temperature around the body (°C) Skin temperature of segment i (°C) Skin set-point temperature of segment i (°C)

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Neural Computing and Applications

Tcl Tl Tblal T0 DTskm DThy Vi adl;i acs;i ash asw;i c% fcl j hc hr he h i k m q r s t u x xblDC xbl DTskm DThy

Average temperature of the external surface (°C) Temperature of blood (°C) Arterial temperature before current (°C) Reference temperature (°C) The difference between actual and