Thermal Comfort in Hot Outdoor Environment Under Unsteady Conditions

  • G. Katavoutas
  • H. A. Flocas
  • M. Tsitsomitsiou
Conference paper
Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)


One of the major problems of outdoor thermal comfort assessment is the quantification of thermophysiological parameters in order to model human heat balance, especially under unsteady conditions. In this context, the aim of this study is to investigate the thermophysiological parameters involved in human heat balance and their contribution to heat fluxes associated with the human body. This applies for a person leaving a typical indoor environment and seating quite under the shade of a tree for 30 min. In order to achieve these simulations, the Instationary Munich Energy-Balance Model (IMEM) is employed. Body temperatures and heat fluxes are modelled for a standard male at intervals of 1 min, using meteorological measurements carried out during ten experimental days under hot summer conditions. Although the current study reveals that the temporal pattern of mean skin temperature has a similar form, there are found marked quantitative differences among the experimental days, varying from 2°C to 3.2°C. This variation depends primarily on the increase of the air temperature.


Thermal Comfort Radiant Temperature Model Subject Unsteady Condition Skin Wettedness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Prof. Matzarakis A. of the University of Freiburg and Prof. Höppe P., for providing the model IMEM are highly acknowledged.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • G. Katavoutas
    • 1
  • H. A. Flocas
    • 1
  • M. Tsitsomitsiou
    • 1
  1. 1.Department of Environmental Physics-MeteorologyUniversity of AthensAthensGreece

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