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本文利用Airpak3.0软件对某典型住宅建筑在新风机不同送风量作用下室内的流场、空气龄及二氧化碳浓度进行数值模拟与分析,根据模拟分析结果总结出新风机运行改进方法。研究结果表明:新风机的安装位置、新风量的大小、送风的方向成为影响室内流场分布的主要因素;新风机可以依据室内CO_2实际浓度的检测结果来对新风量加以实时调节和送风方案控制,避免新风量不足以及因新风量过多造成空调能耗增加的问题。
This paper uses Airpak3.0 software to simulate and analyze the indoor flow field, air age and carbon dioxide concentration of a typical residential building under the different supply air volume of the new fan. Based on the simulation results, the new fan operation improvement method is summarized. The results show that the location of the new fan, the size of the fresh air and the direction of the air supply are the main factors that affect the indoor flow field distribution. The new fan can adjust the fresh air volume and send the air in real time according to the detection results of the indoor CO 2 concentration Program control, to avoid the lack of fresh air and the air caused by excessive air flow increased energy consumption issues.