Thermal Comfort Study Of Atrium Space Of Commercial Complex In Central And Southern Hebei In Autumn

There are few studies on thermal comfort in non-air conditioning season,generally focusing on summer in hot areas or winter in cold areas,and mainly considering the influence of refrigeration or heating on the thermal comfort of buildings.Research on non-air conditioning season is generally based on natural ventilation technology,and the research objects are mainly residential buildings and office buildings,while the atrium space of commercial complex is relatively closed,so there is little natural ventilation in non-air conditioning period.However,this space has a large volume and a dense flow of people,so customers have higher requirements for thermal comfort than other types of buildings.Atrium is the common space in the current urban complex design approach,the atrium space to improve the building physical environmental indicators has a positive effect,but mainly concentrated on the study of atrium thermal comfort in hot or cold seasons,the temperature is relatively comfortable autumn study is less,but the reality,the atrium loses the adjustment of HAVC equipment in autumn,leading to the atrium space of the commercial complex thermal comfort will become worse.Therefore,it is very important to establish a thermal comfort prediction model for the atrium space of commercial complex in autumn.In this thesis,the thermal comfort of the atrium space of commercial complexes in central and southern Hebei is taken as the research object.Based on the field investigation of the thermal environment parameters of the atrium space of six commercial complexes,the analysis and summary are made.Through the questionnaire,the thermal comfort status of customers is obtained.The research of this thesis includes the following four aspects:(1)Conducted field research on six commercial complexes in central and southern Hebei in autumn,recorded the physical environmental parameters affecting the thermal comfort in the atrium space,and calculated the thermal neutral temperature,acceptable threshold and expected temperature of customers through analyzing the data obtained from the thermal comfort questionnaire.(2)Through the calculation of measured thermal environment parameters and questionnaire data,the adaptability coefficient is obtained,so as to establish a model suitable for predicting the thermal comfort of customers in the atrium space of commercial complex in autumn.(3)Based on the factors that significantly affect the thermal sensation of customers,technical measures are proposed to improve the thermal comfort of customers in autumn season,and Airpak is used for simulation analysis,so as to provide reference for the improvement of the thermal comfort of the atrium space of commercial complex in this area.(4)Statistical analysis of thermal environment factors affecting indoor thermal comfort was carried out by using SPSS,and significant factors affecting indoor thermal comfort of atrium space of commercial complex in central and southern Hebei were obtained.Finally,through the whole study,the customers’ thermal neutral temperature,temperature acceptable threshold and thermal expectation temperature of the atrium space of the commercial complex in central and southern Hebei were obtained in autumn,and the model to predict the customers’ thermal comfort was established.The improvement measures are put forward from three aspects: the area of the inlet and outlet,the heat transfer coefficient of the top envelope and the area of the vent.