Research On Optimization Design Strategy Of Dynamic Sunshade In Training Hall Based On The Adaptive Thermal Comfort Model Of Sports

With the popularization of national fitness,the demand for sports building becomes higher and higher.At the same time,the comfort of indoor space is also higher and higher.Because of the advantages of low construction cost,convenient use and management,flexible building function,strong adaptability to outdoor climate and low energy consumption,the small and medium-sized training hall with natural ventilation is popular at present,and its quantity distribution is also more and more extensive.However,due to the variability of the outdoor climate,especially in summer in hot and humid areas,the indoor environment of the training Hall under natural ventilation cannot always meet the comfort requirements of the sports crowd.The adjustment of interior environment plays a decisive role in the adjustment of architectural interface,so the adaptability of architectural interface is urgently required.In addition,there are obvious requirements for thermal comfort of human body in both motion and non-exercise states,and few scholars have studied the thermal comfort of sports people in natural ventilated buildings in the past.In view of the above problems,in the first part of this paper,a long-term field investigation was carried out in three typical small and medium-sized natural ventilation training halls in Guangzhou according to the long-term climate characteristics of summer wet-heat in Guangzhou and the principle of human thermal adaptability model.Based on the investigation of indoor and outdoor physical environment parameters and subjective thermal sensation of sports crowd,the thermal response of basketball crowd in Guangzhou Natural ventilation training Hall was quantitatively studied by means of significance test and linear regression analysis.The bivariate thermal adaptability model for predicting the summer neutral temperature of exercise population and the univariate thermal adaptability model for predicting the upper temperature limit of exercise population are established.Then,the second part of this paper combines parametric programming platform,performance analysis software,genetic optimization algorithm and other design modules to analyze the sunshade and ventilation optimization of the summer temperature maximum day and the typical summer day training hall.The optimum range of sunshade parameters(spacing,width and rotation angle)and the correlation between the shape of sunshade component model and indoor thermal environment are obtained.The adjustment ability and comfort range of dynamic sunshade to indoor thermal environment of natural ventilation training hall were determined and promoted,and the design strategy of sunshade system adapted to the thermal comfort of sports crowd in Guangzhou area was summarized.The above results will play an important role in the establishment of evaluation criteria for thermal comfort of sports crowd,the design of dynamic sun-shading components and energysaving design standards of small and medium-sized natural ventilation training halls in Guangzhou.