Research On The Relation Of Indoor Air Velocity With Human Comfort And Physiological Stress

The goal of our building is to let human, buildings and society develop compatibly. Human should adjust to this nature balance, and seek for harmonious building environment for human existence and development. The influence of indoor thermal environment on resident is very important. Since twentieth century scholars all of the world have studied on the indoor thermal environment, this paper first summarizes in detail on thermal environment and thermal comfort, air-conditioning mode and energy conservation, thermal environment judge, simulation and emulation, environment physiology, preventive medicine, hygienics and epidemiology, garment etc of native and foreign countries'research status in quo. It introduces the mature achievement of human and environment heat transfer model, thermal environment evaluating indicators and comfort influence factors, standards of thermal comfort of the indoor environment,and some of which are researched in defence such as the thermal environment of aviation module or warship cabin of the psychologic and physiological influence on soldiers. So this paper still discusses human psychologic and physiological mechanics in thermal environment.Through having done field surveys in the campus of Chongqing University, this paper tested classroom indoor and outdoor climate parameters in June, July and September of 2005, it used questionnaire to acquire subjects'thermal sense, draft sense and humidity sense in classroom each month, and programmed composition to compute Predicted Mean Vote and compared PMV with the field testing results of Mean Thermal Sensation Vote. It is discovered that PMV is overvalued the college student'thermal sensation in Chongqing. It finds that people in Chongqing adapt to the typical summer hot and winter cold sweltering weather. And through analysing the results of field questionnaire, it also obtains the regression curves of indoor air temperature, air speed and humidity with human subject sense. And it discovers the neutral air temperature of students feeled is 25.5℃in campus of Chongqing, compared with the neutral value of PMV which Fanger computed according with occidental vote is 25.0℃, the discrepance is 0.5℃.In order to discuss the quantifiable relation of air speed with human comfort and physiology stress, 20 subjects each in winter and summer of 2005 were exposed different air speed, and they had done some physiological testing and questionnaire...