Research On Human Physiological Thermoregulation Area And Thermal Environment Parameters Of Building

With the improvement of living standards,people began to make more pursuit of indoor thermal comfort,resulting in excessive dependence on the comfortable environment created by heating and air conditioning.It will not only a waste of resources,will also indirectly make human thermal regulation slowly decay,and resulting from human body function degradation.The research focus of this paper is to study how to effectively use the body’s own physiological regulation function,and can be used to what extent.It is in order to explore the corresponding physiological adjustable area.Because in the comfort zone and on comfort zone around,the relative humidity on the thermal comfort of human body has no effect.The experimental design will control the relative humidity in the comfort range.The thermal environment variables of this paper are air temperature and wind speed.Among them,the temperature of cooling temperature is 24℃,23℃,22℃,21℃,the heating temperature is26℃,27℃,28℃,29℃,variable wind speed design wind speed for the static wind,0.4m/s,0.3m/s,0.5m/s.Through the experimental test of human skin temperature,skin thermal flow,heart rate and heart rate variability,and combined with the subjective questionnaire to research the significant degree of the physiological parameters in the setting temperature and wind speed range and the corresponding changes in trend characteristics.And combined with the subjective questionnaire to determine the physiological range and adjustable compensation range study on the physiological wind speed adjustable boundary temperature.Experimental data by EXCEL2010,SPPS17.0 processing analysis to draw the following conclusions.Whether the variable temperature conditions and variable wind speed conditions,in the setting of all physiological parameters within the range of test in 30 min can reach the stable state,and there are significant changes in physiological parameters only human skin temperature and skin thermal flow.With the decrease of the ambient temperature,the local and average skin temperature showed a decreasing trend.The forehead and chest skin conduction heat flow increases,thermal flow of the forearm and hand first increased and then decreased;upper and lower leg,arch and the average thermal flow decreased skin.With the increase of ambient temperature,the local and average skin temperature of the human body showed a rising trend,the heat flow of the skin showed a downward trend.With the increase of wind speed,the skin temperature of the human body part and the overall average showed a downward trend,and the heat flow of the skin showed a downward trend.The linear regression equation of physiological parameters and ambient temperature and wind speed is established,which can be used to predict and calculate the physiological parameters in the condition of known ambient temperature or wind speed.The outer boundary value of the physiological adjustable area in summer is22.45℃,28.9℃.When the ambient temperature is 29℃,the wind speed range of the human body feel comfortable is0.14~0.38m/s.The prediction model of physiological parameters and subjective evaluation indexes was established,and the corresponding subjective evaluation indexes could be predicted by testing the corresponding physiological parameters.