Browsing by Author "Kubaha, Kuskana"

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    Asymmetric radiant fields and human thermal comfort
    (De Montfort University, 2005) Kubaha, Kuskana
    The main purpose of this thesis was to develop a first principles model for predicting human local thermal comfort responses to asymmetric radiation environments. The research deployed state-of-the-art computer simulation techniques to model in detail inhomogeneous short-wave and long-wave radiative heat exchanges of standing and sedentary humans. Detailed 3D human geometry models, simulation software incorporating advanced, voxelbased ray techniques and statistical regression analysis were used to accurately model human local geometry-related characteristics, i.e. projected area factors with respect to both direct and diffuse solar radiation, and view factors for individual parts of the human body. The local projected area factors with respect to direct short-wave radiation (fp,dir) were presented as functions of the solar azimuth angle (a) between 0 0< a < 3600 and the solar altitude (jJ) angles between -900