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摘要： 介绍了空调排风直接回用的设计思路。建筑物内各类空间对空气质量要求不同，将较高标准区域的空调排风直接应用于较低标准区域（如附属用房），可以提高附属用房的舒适度，不需再配置其他空调设备。结合实际工程，介绍了空调排风直接回用系统的设计方法。 关键词： 节能减排 排风 最小新风量 重复利用 Practice of direct circulating utilization of air conditioning exhaust air By Wang Tonghui★, Tang Baisong, Xing Jinli and Meng Guiping Abstract Describes the design idea. There are differences in the demand of air quality among different occasions of one building. By applying the exhaust air of occasions with higher air quality to those such as affiliated rooms with lower air quality, the comfort of the latter can be improved without extra air conditioning equipment. With an actual project, presents the design method of this system. Keywords energy saving and emission reduction, exhaust air, minimum fresh air rate, circulating utilization ★ Beijing Hydropower Investigation & Design Research Institute CHECC, Beijing, China