The Study on Indoor Thermal Environment during Convection Heating - Thermal Comfort by Indoor Air Temperature and Velocity -

대류난방시 실내열환경에 관한 연구 - 온도 및 기류속도에 대한 온열쾌적감-

  • Published : 2005.02.01


Draft is defined as an unwanted local cooling of the human body caused by air movement. It is a serious problem in many ventilated or air conditioned buildings. Often draft complaints occur although measured velocities in the occupied zone maybe lower than prescribed in existing standards. Purpose of this study is to clarify the evaluation of thermal comfort based on temperature and air velocity in winter. Experiments were performed in an environmental chamber in winter. Indoor temperature and air velocity was artificially controlled. The experiments were performed to evaluate temperature conditions and air velocity conditions by physiological and psychological responses of human. According to physiological responses and psychological responses, it was clear that the optimum air velocity is about 0.15 m/s and 0.30 m/s.




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