。20。 北京科技大学学报 2007年增刊2 Indoor pollutant diffusion control and simulation in building MA Fei,LUO Hailiang?,XIE Hui,ZHANG Miao) 1)Civil and Environmental Engineering School,University of Science and Techmlogy Beijng.Beijing 100083.Chim 2)Collge of Architectue and Civil Engineering.Beijng University of Technology,Beijing 100022.China ABSTRACT The method to cont rol diffusion of indoor perfume pollutants in building was studied.Production source and diffusion characteristic of perfume pollutants were discussed.The control plan was proposed that pol lution sources were isolated separately and then pollutants were collected.The exhaust system was designed. The optimal flw velcity in pipeline was obtained to be 5.6-60m'sbased on numerical simulation.Test results proved that more than 90%of perfume pollutants were trapped and the method was an effective way to control the diffusion of perfume pollutants. KEY WORDS comput ational fluid dynamics (CFD);indoor pollutant;exhaust system;pollution controlIndoor pollutant diffusion control and simulation in building MA Fei 1) , LUO Hailiang 2) , X IE Hui 1) , ZHANG Miao 1) 1) Civil and Environment al Engineering S chool, Uni versit y of Science and Tech nology Beijing, Beijing 100083, C hina 2) College of Architectu re and Civil Engineering, Beijing University of Technology, Beijing 100022, China ABSTRACT The method to control diffusion of indoo r perfume pollutants in building w as studied .Production source and diffusion characteristic of perfume pollutants were discussed .The control plan w as proposed that pol￾lution sources w ere isolated separately and then pollutants were collected .The exhaust system was designed . The optimal flow velocity in pipeline w as obtained to be 5.6 -6.0 m·s -1 based o n numerical simulation .Test results proved that more than 90 %of perfume pollutants were trapped and the method w as an effective w ay to control the diffusion of perfume pollutants . KEY WORDS computational fluid dynamics ( CFD) ;indoor pollutant ;ex haust sy stem ;pollution control · 20 · 北 京 科 技 大 学 学 报 2007 年 增刊 2