Thermal comfort evaluation and analysis of natural ventilation environment

Analyses PMV model, modified PMV model and adaptive model adopted to evaluate thermal comfort of natural ventilation environment, and points out their defects. Tests thermal environment parameters and CO₂ concentration in a natural ventilated office building in Tianjin during a transient season and performs subjective investigation by questionnaires. Draws out the varying regularity of indoor thermal environment with outdoor thermal environment and evaluation results from the occupants. Considers that thermal environment parameters, personal behavior, air age, long-term physiological adaptability and psychological anticipation should be considered comprehensively in thermal comfort model of natural ventilation environment.