教室内气流组织对二氧化碳浓度分布的影响

Effect of Air Distribution in Classroom on Carbon Dioxide Concentration Distribution

随着建筑节能快速发展,建筑物的密封性也越来越好。虽然较好的建筑密封性节能效果显著,但也造成了室内空气的流通性较差影响室内空气品质,特别是在教室这种人员密集的房间。采用模拟的方法,通过对教室的仿真建模,利用airpak 软件模拟在相同新风量的条件下,上送下回、上送上回和侧送下回形式中4 种不同风口位置,教室内CO2 的分布规律,并对比分析其分布原因,评价出最优的方案设计。以期对教室内的良好空气环境的营造和其它污染物的研究方法提供借鉴。

With the rapid development of building energy-saving, building sealing is getting better and better. Although the energy-saving effect of better building sealing is remarkable, it also causes the poor circulation of indoor air, which affects the indoor air quality, especially in classrooms with dense staff. In this paper, the simulation method is used to model the classroom. The Airpak software is used to simulate the distribution of CO2 in the classroom under the same fresh air volume. The four different air outlet locations in the form of up-down, up-down and side-down are simulated. The reasons for the distribution of CO2 in the classroom are compared and analyzed, and the optimal scheme design is evaluated. In order to provide a reference for the construction of a good indoor air environment and other pollutant research methods.