lecture 9 climate effects

lecture 9 climate effects - Thermal Comfort:Internal Body...

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1 Thermal Comfort:Internal Body Temperature The body maintains an average internal temperature of 36.8 º C (98.2 º F) ±1 º : Thermoregulation system Slightly lower in the morning, slightly higher at emotional times or during exercise/work The more work the thermoregulation system has to perform to maintain the internal temperature, the more we perceive this as thermal discomfort (heat discomfort, cold discomfort) Thermal Discomfort The degree of thermal discomfort depends on Personal factors (clothing, activity, health, physiological and psychological factors, …) Climatic conditions (temperature, humidity, wind, radiation) Human Energy Balance H: Heat production by metabolism Id: Insulation through clothing C: Sensible heat flow (Convection) Esw: Latent heat flow (sweat evaporation) Qres: Heat flow through respiration (sensible and latent) Components of the Radiation Balance B: Direct solar radiation D: Diffuse radiation R: Reflected radiation (short wave) A: Long wave atmospheric radiation
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This note was uploaded on 04/25/2008 for the course GEOG 121 taught by Professor Long during the Spring '08 term at Wisc Oshkosh.

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lecture 9 climate effects - Thermal Comfort:Internal Body...

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