Effects of transient temperature on human's heat losses

The objectives of the paper are to analyze human convection, radiation, evaporation, respiration, conduction, and diffusion heat losses when the operative temperature increases from 26-34.4?C and then decreases from 34.4-26?C with a ratio of 1.4?C per 5 minutes. A energy balance model is used for se...

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Published inThermal science Vol. 20; no. 3; pp. 827 - 830
Main Authors Wang, Lijuan, Di, Yuhui, Yin, Hui, Liu, Yanfeng, Liu, Jiaping
Format Journal Article
LanguageEnglish
Published Belgrade Society of Thermal Engineers of Serbia 2016
Subjects
Air conditioning
Conduction heating
Convection
Convection cooling
Design analysis
Diffusion
Heat
Heat loss
Heat transfer
Linear functions
Quadratic equations
Respiration
Thermal comfort
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Summary:The objectives of the paper are to analyze human convection, radiation, evaporation, respiration, conduction, and diffusion heat losses when the operative temperature increases from 26-34.4?C and then decreases from 34.4-26?C with a ratio of 1.4?C per 5 minutes. A energy balance model is used for sedentary subject. The results show that during temperature rising, all the heat losses are linear functions of temperature, while during temperature dropping, the convection, diffusion, and respiration heat losses are quadratic functions of temperature. The results are useful for thermal comfort evaluation and heating, ventilation, and air conditioning design. nema
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ISSN:0354-9836
2334-7163
DOI:10.2298/TSCI1603827W