Study On Improving Summer Outdoor Thermal Environment Of Enclosed Teaching Buildings In Hot-humid And Less-windy Climate

Teaching buildings are the main places for teachers and students to study and work in universities.The teaching building not only provides basic places for learning and working,but also the outdoor public areas with rest,entertainment and communication functions to regulate emotions after learning.Uncomfortable outdoor thermal environment will reduce the willingness to participate in outdoor activities and have a negative impact on the health of teachers and students.With the continuous deterioration of urban thermal environment,universities in hot-humid climate regions have imperious demands to improve the outdoor thermal environment of teaching buildings.The enclosed building form was originally used mainly in the northern region with cold climate.With the increasing number of enclosed teaching buildings,it is necessary to understand the outdoor thermal environment conditions when enclosed buildings are applied in southern China.In order to create a comfortable outdoor thermal environment of enclosed teaching buildings in the region with hot-humid and less-windy climate,it is necessary to quantitatively analyze the current situation of outdoor thermal environment and construct appropriate thermal environment improvement strategies.The purpose of this study is to analyze the climate characteristics of hot-humid and less-windy regions and the characteristics of the outdoor space of enclosed teaching buildings,then put forward appropriate methods to improve the thermal environment.The outdoor thermal environment of enclosed buildings in hot-humid and less-windy regions and the improvement effect of different improvement measures were quantitatively analyzed by means of measurement and simulation.This study provides theoretical and data support for the improvement of outdoor thermal environment of enclosed teaching buildings in hot-humid and less-windy regions.The research is mainly carried out from the following 4 aspects:(1)Analyze the climate characteristics of hot-humid and less-windy region,then put forward the principle of outdoor thermal environment improvement for the region.On the basis of summing up the climate characteristics of hot-humid and less-windy area,the main influencing factors of the outdoor thermal environment in the region and the influence degree of each factor were analyzed.According to the analysis results,the principle of outdoor thermal environment improvement in hot-humid and less-windy area was put forward.(2)Analyze the characteristics of outdoor space of enclosed teaching buildings and the appropriate thermal environment improvement methods.The types and characteristics of outdoor space of enclosed teaching buildings were summarized,and the main factors influencing the thermal environment of different types of outdoor space were analyzed.According to the analysis results,the outdoor thermal environment improvement methods for enclosed teaching buildings in hot-humid and less-windy regions were summarized.(3)An enclosed teaching building in hot-humid and less-windy areas were selected as the research objects for field measurement research.Taking an enclosed teaching building of a university in Nanning(a representative city with hot-humid and less-windy climate)as the object,the outdoor thermal environment of an enclosed teaching building was measured.According to the measured results,the present situation and problems of the outdoor thermal environment of the enclosed teaching building in the hot-humid and less-windy area were analyzed.(4)Through the simulation study on the improvement effect of different thermal environment improvement methods,the outdoor thermal environment improvement strategies of enclosed teaching buildings in hot-humid and less-windy areas were constructed.According to the thermal environment problems existing in the analysis results of the measured research,the corresponding improvement methods were put forward.Simulation software was used to make quantitative comparative analysis of the improvement effects of each thermal environment improvement strategies.By comparing the analysis results,the outdoor thermal environment improvement strategies of enclosed teaching buildings in hot-humid and less-windy region were constructed.This study quantitatively analyzed the outdoor thermal environment of enclosed teaching buildings in hot-humid and less-windy regions and the effect degree of different influencing factors.According to the results of simulation research,the outdoor thermal environment improvement strategies of enclosed teaching buildings in hot-humid and less-windy regions were constructed.It provided a quantitative guidance and reference for the improvement of outdoor thermal environment of teaching buildings in hot-humid and less-windy regions.