技术中心

排除人员活动区内人体释放污染物的有效通风方式——置换通风 【英文篇名】 Displacement ventilation:efficient removal of contaminants released by human in the occupied zone 【作者中文名】 李强民; 邓伟鹏; 【作者英文名】 By Li Qiangmin ★ and Deng Weipeng★Tongji University; Shanghai; China; 【作者单位】 同济大学; 【文献出处】 暖通空调, Hv 混合通风; 人员活动区; 人体释放污染物; 排污效率; 【英文关键词】 displacement ventilation; mixing ventilation; occupied zone; human body contaminant; contaminant removing efficiency; 【摘要】 分析了置换通风和混合通风的原理。基于气流分布特性和双层模型理论 ,比较了这两种通风方式的排污能力。对办公室、会议室及体育馆置换通风系统的通风效率进行了实测。结合人体释放污染物的气流运动特性 ,指出以排除人员活动区内人体释放污染物为目的时 ,置换通风较混合通风更为有效。 【英文摘要】 Analyses the principles of displacement ventilation and mixing ventilation. Based on air distribution characteristics and the double-layer model theory,compares contaminant removing capability of the two ventilation modes. Measures the ventilation efficiency of the displacement ventilation systems for an office room,an assembly room and a gymnasium. Based on the movement characteristics of the contaminants released by human,points out that displacement ventilation is more efficient than mixing ventilation w...