多功能厅岛型舞台采用喷口送风空调方式的数值分析

利用CFD技术,以某多功能厅为例,对该多功能厅岛型舞台空调采用喷口送风的三种气流组织方式下的温度场和速度场进行了数值模拟,从舒适节能的角度对三种气流气流组织方式进行了分析比较。结果表明,喷口对喷的送风方式具有流场对称的特点,但喷口射程偏小容易在中间区域形成涡流高温区,影响人员的舒适性。受灯光渡桥影响,屋顶回风的方式回风温度偏高,不利于空调系统节能。最后得出,喷口送风,灯光渡桥局部排风、下回风为针对此类建筑的最佳气流组织方式,从而可以为以后此类建筑的空调设计提供参考。

Numerical analysis of the air-conditioning method in the multi-function theater with insular stage

With the example of a multi-function theatre,the paper simulates numerically the temperature and airflow fields at three different air conditioning schemes by CFD software,and analyzes the three air-conditioning schemes aiming at comfort and energy saving.The results show that the temperature and vector distribution are symmetrical with ejector type air supplying method,but the volute high temperature fields are forming at small ejector distance and affect the thermal-comfort of people.Being affected by lighting bridge,roof air return method is no help to the energy saving because of the high return air temperature.The best air-conditioning method-ejector air supplying,local exhaust over lighting bridge and bottom air returning is obtained at last,so it can provide referenced basis for the air-conditioning design of similar building.