Optimal Design Of Natural Ventilation In Badminton Hall Of "Shenyang National Fitness Center" Based On Thermal Comfort Target

The National Fitness Center is an important carrier for the development of the National Fitness campaign in China.It is a new kind of comprehensive,multi-functional,indoor sports building complex with complex sports space combination.Through research,it is found that most national fitness centers pay too much attention to space capacity and neglect indoor comfort.Excessive reliance on air conditioning and other active regulation not only leads to high energy consumption,At the same time,it is easy to lead to the deterioration of air environment quality,which has caused unnegligible harm to the health of sports people.Reasonable natural ventilation design can meet the requirements of human health and comfort,and with the development of computational fluid mechanics,The software technology with powerful calculation function and visualization can give the temperature and velocity at any point in large space,which provides an accurate quantitative basis for the evaluation of ventilation scheme and indoor comfort.Therefore,it is an effective tool for spatial airflow analysis.This paper takes the Feather Hall of Shenyang National Fitness Center as the research object,based on the understanding of the theory of thermal comfort and the climatic characteristics of severe cold areas,and the evaluation of the natural ventilation potential of Shenyang.Through field investigation and interview,this paper studies the actual natural ventilation condition of the inner space of the building in the transitional season.Combined with the data statistics and the results of the interview,the author chooses the transition season of Shenyang City which is the most suitable for the application of natural ventilation.The simulation flow and frame are put forward,and by studying the basic principles that affect the natural ventilation of large space building,the relevant design factors are refined,and the orientation,the opening area,the area ratio of the inlet and outlet,the relative position of the inlet and outlet are analyzed by Airpak software.The influence of space height,inlet and outlet height difference,skylight area,skylight quantity,skylight distance and design factor on indoor natural ventilation is obtained,and the temperature field and velocity field in indoor natural ventilation environment are obtained.The optimum design value of each design factor is obtained by analysis and calculation.The domestic natural ventilation thermal comfort evaluation model is used to evaluate the thermal comfort of various users in the venue.It is hoped that the reasonable ventilation scheme can provide reference data for the optimum design and application of natural ventilation in this building.