The Effect Of Typical Behavior Sequence And Thermal Experience On Thermal Comfort

In the process of building use,people usually experience the transition between spaces.This process will be accompanied by behavior patterns and thermal environment mutation,making the human thermal comfort in a dynamic change within a short period of time.At this time,the evaluation of thermal comfort based on the steady-state PMV model is not accurate,and temperature design based on it will cause indoor discomfort and even over-cooling or over-heating.However,there are still relatively few studies on the effect of behavioral patterns and thermal environment changes on human thermal comfort at home and abroad,and there is no specific evaluation standard to match this.Therefore,the research on thermal comfort under the continuous mutation sequence of behavior patterns and thermal environment is urgently needed.This article focuses on the special building type of high-speed railway station,and explores the thermal comfort of each functional space in view of the complex behavior sequence of its internal personnel.First,take a large-sized high-speed railway station in Tianjin as an example.Through on-site image collection and instrument measurement,the passenger behavior characteristics and the current situation of summer thermal environment in the five spaces of entrance,security check,traveling,waiting,and check-in that passengers went through in turn during the ride process after arriving at the highspeed rail station by bus and subway were obtained.Based on the obtained personnel behavior and thermal environment data,by restoring the real behavior characteristics and thermal environment conditions of the two modes of transportation to the highspeed railway station in the artificial climate room,a research method for the dynamic thermal comfort experiment of the high-speed railway station was established.And 30 subjects were recruited to conduct experimental research under 24 temperature sequence changes to analyze the dynamic changes of passenger thermal comfort during the ride.Secondly,the data of thermal sensation,thermal comfort,thermal acceptability,thermal preference,skin temperature and heart rate obtained from experiments were analyzed by combining correlation analysis,linear regression analysis,one-way ANOVA and other data analysis methods.So as to explore the changes of subjective perception evaluation and objective physiological responses of human body in different thermal experiences under the typical behavior sequence of the ride after arriving at high-speed railway station by bus and subway in summer.Finally,the subjective evaluation,physiological response and thermal environment parameters of the five spaces during the ride are quantitatively analyzed.The evaluation model of passenger thermal comfort of each functional space in the ride process of high-speed railway station is established based on typical behavior sequence and thermal experience.It can predict the thermal comfort of passengers under different temperatures in each functional space more accurate.The study also proposed a summer temperature control strategy for large-sized high-speed railway stations in cold regions that meets the dual needs of energy saving and human comfort,which is used to guide the temperature design of each space in the ride process to improve passenger comfort.