Research On Campus Microclimate And Thermal Comfort In Hot Summer And Cold Winter Regions ——Anhui Jianzhu South Campus As An Example

In recent years,the global climate change problem has become more and more serious.Scholars from all over the countries began to pay attention to climate problemsand urban living environment problems.However,The microclimate and thermal comfort characteristics under the differential distribution of multiple types of spaces cannot be accurately represented in terms of site building morphology,substrate surface,and plant homogenization treatment.Hot summer and cold winter areas need to prevent heat and ventilation in summer,while in winter,they need to take into account the cold and wind,and this seasonal difference also makes the climate problems more complex.This characteristic of large differences in different seasons also makes the urban climate problems in hot summer and cold winter areas more complex.As an important place for students to study and live,the thermal comfort of its outdoor space is of great significance to the physical and mental health of teachers and students.Based on the urban climate conditions in hot summer and cold winter,taking the south campus of Anhui Architecture University in Hefei,to explore the overall climate and thermal comfort and the influence of different outdoor space forms on thermal comfort,and seek suitable campus planning and landscape design methods,and provide new research perspectives on humanized space design for university campuses.Firstly,the research Progress of urban microclimate and human thermal comfort at home and abroad is summarized,the development history and research methods are sorted out,and the technical route of this paper is proposed.Secondly,the outdoor space form,building size,plant layout and undercushion material of the South Campus of Anhui Jianzhu University were investigated and analyzed.Representative samples were selected for microclimate measurement,compare the differences in air temperature and relative humidity of the sample points,and used ENVI-met software to calculate the verification model.The coefficient of determination(R~2),root mean square error(RMSE)and consistency index(d)were used as validation indicators of software and model accuracy.It is further demonstrated that the ENVI-met numerical simulation software can be used for microclimate and thermal comfort studies on the Hefei campus.Secondly,the physiological equivalent temperature(PET)was selected as the index to evaluate thermal comfort,simulating the overall microclimate and thermal comfort in typical summer and winter days through ENVI-met software,revealing the campus microclimate and thermal comfort distribution in summer and winter,analyzing the influence of sky visual factor(SVF)on microclimate factor and thermal comfort at 15,and establishing its quantitative relationship.Thirdly,a detailed model construction is conducted on the campus,semi-open,full and semi-enclosed outdoor,analyzing the spatial and temporal distribution of summer thermal comfort and thermal comfort of each level of various types of outdoor space.Finally,based on the analysis results and with the goal of improving spatial thermal comfort,the outdoor space optimization design strategy based on climate adaptability,for four aspects of the summer thermal comfort environment,specific space improvement design strategy,provides new ideas for campus outdoor spatial landscape design steps.Results obtained in this paper are the supplement and development of the research on urban microclimate and outdoor thermal comfort level in hot summer and cold winter areas,especially Hefei City,which enrich the examples of human thermal comfort level research in the field of university campus,and can provide reference for campus architectural layout design and landscape design.Figure[49] Table[31] Refercence[120]...