某博物馆高大空间气流组织及节能设计研究

Airflow distribution and energy conservation design of a museum’s large space

中庭处高大空间的气流组织及节能设计一直是众多暖通学者的研究焦点,中庭处的高大空间一般具有比较特殊的建筑构造,而且还是空调系统能耗高、热舒适性处理的难点.因此为选择出更为合适的方案,营造出更为合理的气流组织形式,就需要通过流体动力学计算模型对气流组织进行模拟.以上海市某博物馆中庭处的高大空间为例,通过计算得到送风参数后,利用CFD数值模拟的方法,分别对空调季地板和送风柱相结合的复合式送风方案与过渡季自然送风消除余热方案进行模拟仿真.模拟结果显示,空调季与过渡季的送风设计方案均可以满足室内需求并达到节能的效果,为今后该类建筑的气流组织和节能方案应用提供参考.

The airflow distribution and energy conservation design of the large space building in the atrium have always been the focus of many HVAC scholars.The large space building in the atrium generally has a special building construction,and it is also a difficulty in the treatment of high energy consumption and thermal comfort in the air conditioning system.Therefore,in order to choose a more suitable scheme and create a more reasonable airflow distribution form,it is necessary to simulate the airflow distribution through the fluid dynamics calculation model.In this paper,the large space building in the atrium of a museum in Shanghai is taken as an example.After obtaining the air supply parameters through calculation,CFD numerical simulation is used to simulate the composite air supply with the combination of the floor and air supply column,and the natural air supply in the transitional season to eliminate residual heat.The simulation results show that the design schemes of combined air supply with the floor and air supply column and natural air supply in the transitional season can meet the indoor demand and achieve the effect of energy saving.The design scheme can provide reference for the application of airflow distribution and energy saving scheme in similar buildings in the future.