A Study On Natural Ventilation Design Of Office Buildings In Zhengzhou Area

The demand on the indoor thermal comfort by office staff in Zhengzhou area is becoming increasingly high.However,over-reliance on such means as air conditioning and mechanical ventilation leads to high energy consumption,high pollution,and potential risks to people's health.Therefore,to explore the application of natural ventilation in office buildings in Zhengzhou is an important task to solve the indoor thermal comfort.Combined with a large number of cases,this study,based on the design of natural ventilation technology,explores the accessible design strategies under the concept of natural ventilation in various forms of office space in Zhengzhou area.The thesis is divided into three parts: the first part firstly introduces the background and development process of the research,analyzes the characteristics and present situation of natural ventilation in office buildings in Zhengzhou area,and then provides the applicable scope of natural ventilation design for passive energy saving project in Zhengzhou area based on theoretical basis of natural ventilation and thermal comfort.The second part is the core content of this study.First of all,through the analysis of layout,shape,wind guide plate,and wind guide of vegetation,design strategy of exterior space is provides;then considering the influence of interior space to air flow,such design strategies as patio,atrium,ventilation tower for natural ventilation are analyzed;finally,combined with the construction technology,through the utilization of renewable energy and waste energy,research analysis on such design strategies as passive cooling,preheating,pre heat recovery of air purification is proposed,which makes natural ventilation applicable to more seasons on the basis of energy saving.In the third part,analysis is combined with practice.It first introduces the design method of natural ventilation in the green demonstration building project of Zhengzhou energy saving building;then the transformation simulation analysis is presented for building natural ventilation in Zhengzhou University research center by using the above technology strategies.