Study On The Optimization Design Of Outdoor Thermal Environment In Yinchuan High-rise Residential Area In Summer

The residential area with large volume in the city is one of the main areas for people to gather and move around,and the subtle changes of its outdoor environment can have a direct impact on people's normal life.It is necessary to improve the outdoor thermal environment of urban residential area in Yinchuan during the current rapid urbanization process.In the system requirements of green buildings,outdoor thermal environment is an important requirement index.Many scholars at home and abroad have done a lot of research on the frontier problem of outdoor thermal environment in residential areas.Yinchuan is located in the cold region of China,which is the representative of the new city.In order to explore ways to improve the outdoor thermal environment of residential areas in Yinchuan area,this paper,relying on the national science and technology support program "integrated research and demonstration of urban green building technology in northwest arid areas",selects the high-rise area of Ming cui peninsula in Zhang Zheng town of Yinchuan as the research object,and conducts in-depth research on the outdoor thermal environment in summer.CFD outdoor wind field analysis software VENT was used to simulate the wind field of the target high-rise residential area,and cloud maps such as wind speed and pressure at the height of 1.5m were obtained in summer.The outdoor wind environment of the target residential area was better in summer.The CTTC model was used to analyze TERA to simulate the outdoor thermal environment,and the air temperature cloud map was obtained.Through the analysis,it is found that although the overall thermal environment of the optimized scheme is good,the local temperature is high.Therefore,atomization equipment was used for outdoor physical cooling,and field experiments were carried out in the area where the temperature was too high to obtain the temperature and humidity value.By calculating WBGT,it was found that the temperature and humidity in the area with radius of 3m was the best,which has certain promotion value.Through the combination of simulation and experiment,the optimization method of outdoor physical cooling with atomization equipment is put forward,which provides practical technical guidance for the healthy and orderly development of urban residential area in Yinchuan and scientific and reasonable planning of outdoor thermal environment of residential area.It has direct practical significance and important value to the construction of high-quality urban environment and the improvement of living quality.