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Träfflista för sökning "WFRF:(Holmér Ingvar) ;lar1:(lu);srt2:(2000-2004)"

Sökning: WFRF:(Holmér Ingvar) > Lunds universitet > (2000-2004)

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  • Holmér, Ingvar (författare)
  • Assessment of cold exposure
  • 2001
  • Ingår i: International Journal of Circumpolar Health. - 2242-3982. ; 60, s. 413-422
  • Tidskriftsartikel (refereegranskat)
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  • Holmér, Ingvar (författare)
  • Cold but comfortable? Application of comfort criteria to cold environments
  • 2004
  • Ingår i: Indoor Air. - : Hindawi Limited. - 0905-6947 .- 1600-0668. ; 14:s7, s. 27-31
  • Tidskriftsartikel (refereegranskat)abstract
    • Fanger defined two physiological criteria that are basic requirements for people's perception of thermal neutrality and, eventually, thermal comfort. Mean skin temperature and evaporative heat loss are defined as functions of metabolic rate. The equations are derived from experiments in light clothing at or close to normal indoor climate. Relations between skin temperature and sweating on the one hand and thermal sensation and comfort on the other are well recognized; the precise description of the relationships vary and may differ from normal indoor environments to more extreme thermal stress. In moderately cold environments (around +10degreesC) ISO/DIS 7730 and ISO/DIS 11079 prescribe significantly different responses. Evaluation of the rationale behind the comfort criteria and the basic heat transfer equations in the two models reveals some clear differences. By modification of the sweating criteria and some of the heat transfer equations, predictions become much more similar. It is concluded that the basic comfort criteria may apply also to moderately cold and cold environments, but must consider the complex heat transfer through multilayer clothing in a more adequate way.
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  • Holmér, Ingvar, et al. (författare)
  • Design criteria for assessment of vehicle climate systems
  • 2004
  • Ingår i: Human Factors in Design. - 9042302496 ; , s. 303-305
  • Konferensbidrag (refereegranskat)abstract
    • The combined thermal effects of convection, radiation and conduction in a vehiclecompartment need special measuring equipment accounting for spatial and temporalvariations in the driver space. The most sophisticated equipment measures local heat fluxes at defined spots or areas of a man-shaped manikin. By calibration of segment heat fluxes with thermal sensation votes of panel of subjects, manikin data can be used as a design tool for evaluation of the quality of the thermal environment.
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  • Holmér, Ingvar (författare)
  • Thermal manikin history and applications
  • 2004
  • Ingår i: European Journal of Applied Physiology. - : Springer Science and Business Media LLC. - 1439-6319 .- 1439-6327. ; 92:6, s. 614-618
  • Konferensbidrag (refereegranskat)abstract
    • Thermal manikins have served research and development purposes for more than 60 years. They are widely used for analysing the thermal interface of the human body and its environment. Particular applications are found in the determination of thermal properties of clothing and in the evaluation of the local body-heat fluxes in complex environments such as in a vehicle cabin. Recent developments of sweating manikins as well as breathing manikins allow even more realistic simulations of the human thermal interaction with the environment.
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