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The Exhaust Volume of the Underground Garage Calculation and Simulation on Pollutant Dispersion Process

Chen Junping and Zhao Lei  
Five kinds of commonly used by the underground parking garage ventilation calculation formula were analyzed and compared by calculation of the formula found some differences in values,the difference between the hanging results.Simulation method was used in a confined space for large traveling under the conditions of idling vehicle exhaust pollutants in the exhaust wake of the proliferation characteristics of the study.The results show that the momentum of small motorcycle exhaust,low temperature to form a plume of smoke after a period of distance,the rapid spread,its proliferation and its distribution arrangement for a reasonable location of air vents have a significant impact.
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