Study On Natural Ventilation Of Multi-patio Single-storey Building Space In Hot And Humid Areas

With the increasing energy consumption of buildings,passive energysaving technology has attracted more and more attention.Nowadays,many single-storey factories are renovated to suit the urban development,but their renovation mainly focuses on the use function and elevation,and has not been discussed from the perspective of passive energy-saving.The patio is an open space in the building,which not only affects the architectural landscape,but also adjusts the internal wind environment of the building.In the design process,according to the local climate factors,through reasonable layout of the combination form of patio work,to achieve the function of single-storey building design and energy saving requirements.Based on the humid and hot areas represented by Guangzhou,this paper studies the design strategy of the combination design of patio for the indoor natural ventilation environment of buildings.Through CFD simulation,the indoor ventilation environment of patio building is simulated and its ventilation law is analyzed.According to its ventilation law,the size,location and enclosure state of the patio are adjusted,the wind environment results after adjustment are analyzed,the combination forms of patios suitable for hot and humid areas are discussed,and the optimal design strategy of the patio building is put forward.This paper is divided into five parts.The first part is the introduction.This paper clarifies the background,significance,research object and conditions of the study,sums up the domestic and foreign research and relevant conclusions,and puts forward research methods according to the scope of the study.This chapter mainly establishes the basic research framework for the paper.The second part is to investigate the information of the simulated buildings,the wind environment data of Guangzhou,and classify the basic patio combinations.The basic information needed for simulation is screened,and the simulation environment is set up in combination with software operation.This chapter is mainly for the preliminary preparation of the simulation work.The third part is the core of this paper,which has three chapters.Chapter 3 is the software simulation of the basic patio combination and the original model.Through the results of simulation data,the influence of the patio combination on the natural ventilation in the building room is observed,and the ventilation law is analyzed,which provides ideas and basis for the follow-up simulation research and optimization design methods.Chapter 4 summarizes the ventilation rules of the above contents,and puts forward the measures to adjust the position,size and proportion of the patio.In order to optimize the indoor air environment of the whole building,the position,size and proportion of the patio are adjusted repeatedly,and the ventilation effects of each patio combination are summarized.The simulation results are compared and analyzed,and the layout mode that is most conducive to natural ventilation is obtained.The fifth chapter puts forward the measures to adjust the enclosure state of the patio,and puts forward the methods of adding component suspension board,enclosing partition wall and enclosing open partition wall.The simulation results are compared with the basic ones,and the ventilation rules are summarized and analyzed.Then compare with each other,summarize and select the optimal treatment methods of different enclosure states.The fourth part is to summarize the main achievements of this paper,and to look forward to future research work.