Simulation Study On Winter Heating Of A Building Atrium In Anhui Province

Exploring a heating scheme for a semi-open building atrium suitable for a tourism performance in Huangshan,Anhui Province,comparing and analyzing the characteristics of various heating methods,and finally selecting the nozzle air supply + floor heating,nozzle air supply + gas radiation,nozzle air supply + corrugated board kicking Line radiators are three composite heating methods.Based on the actual building,the simulation model was built.The fluent fluid calculation software was used to simulate and analyze the indoor airflow distribution characteristics under three different air supply angles: 0 °,30 ° and 45 °.Determining the optimal solution.Compared with the ordinary atrium,the performance building has a wide span,large space and a semi-open space at the top,and the open part is in contact with the outdoor atmosphere.The external cold air flow settles directly from here to the interior of the atrium.There is a large area of water inside the building,and the evaporation of the pool water causes the indoor humidity to rise.There are many kinds of entertainment equipments such as stage and paddling pool.The complexity of the structure must affect the distribution characteristics of the indoor airflow organization.The paper optimizes the heating system by analyzing the average temperature,average wind speed and uniformity of temperature field and velocity field in the human activity area under nine working conditions.Optimize the nozzle size,air supply speed,nozzle height and nozzle arrangement,analyze the thermal comfort of the optimized solution,verify the rationality of the optimization scheme through thermal comfort indicators such as PMV and PPD,and finally determine the nozzle air supply + Ground radiant composite heating is the optimal solution.The spouts are installed in the middle of the building and are arranged along the length of the atrium.The arrangement is arranged in rows.The air supply speed is 4 m/s.