Study On Evaluation Method Of Indoor Thermal Comfort Of Large Commercial Complex In Cold Area

Large commercial complex is the trend of commercial building under the "experiential consumption" mode.To get a knowledge of the demand of thermal comfort of consumers and create a comfortable thermal environment can enhance their shopping experience,as well as increase business profits.It can also avoid the phenomenon of overheating in winter or overcooling in summer,and be beneficial to energy conservation.Large commercial complex,with large building area,comprehensive functions,complicated thermal environment and diverse activities of the indoor staff,has special feature in evaluation and research of thermal comfort.Compared with other types of buildings,the large-scale commercial complex also involves the concept of moving lines.It is of theoretical significance to study the thermal comfort evaluation of the whole moving line in the actual building design where customers move and stay on.In this paper,the large-scale commercial complex in the cold area is used as the research target to carry out the actual investigation on the thermal environment in the winter and summer,and the thermal comfort questionnaire of the indoor personnel was investigated.The global thermal comfort evaluation model was established by data fitting regression analysis.Besides,this paper studied the thermal comfort of moving line in large-scale commercial complex.The main research work in this paper includes:(1)To get a knowledge of the current thermal comfort situation of indoor stuff in large commercial complex.Two typical large-scale commercial complexes in cold area were selected to carry out on-site survey of their thermal environment parameters and the thermal sensation of the subjects.The indoor staff's clothing resistance,metabolic rate and related index of thermal comfort were calculated,including neutral temperature,preferred temperature,acceptable temperature range and other parameters.(2)To establish the integrated evaluation model of thermal comfort for large commercial complex in cold area in summer and winter.The actual thermal sensation and PMV model are used to predict the thermal sensation.The results show that there is a deviation between the predicted results and the actual situation of the original model.Two kinds of correction methods are used to modify the original model to obtain the adaptive coefficient values in winter and summer,and the integrated modified model of thermal comfort is established.(3)To propose a method to evaluate the thermal comfort of moving line in large commercial complex.This paper analyses the variation law of thermal sensation when customers staying in or moving through the different functional areas in the whole moving line,and of customer in the indoor function area to stay and in the functional range of the changes in the of the law.The evaluation method of customers in the whole moving line is obtained.