THE INFLUENCES OF MOVING HUMAN IN A VENTILATION ROOM
The moving human (MH) influences the airflow andcontaminant distribution, this paper use thecommerce software FLUENT6.2 to simulate theinfluences of the MH to the airflow and TVOCsdistribution in both mixing ventilation and placementventilation. In a three-dimension ventilation room,a pollutant source (TVOCs) was located on the floorand a flesh in a certain zone moving was assumed,and the unsteady, k-|? turbulent model be used,According to the simulation results, we studied theinfluence of MH in the indoor air quality in bothmixing ventilation and displacement ventilation. Theresults of contaminant distribution have a MH or notin two difference ventilations were compared, theresults indicate that the single MHs influence is notobvious all of space, but in the moving zone, therewere some difference with have MH or not in twodifferent ventilations. The MH made the high TVOCsconcentration at the bottom of room diffused to thelow TVOCs concentration at the top of room with adisplacement ventilation, which made the layered ofcontaminant lifted up, and the TVOCs distributionmore uniformity at the bottom of the room withmixing ventilation. At the same time, the influence inmixing ventilation is larger than in placementventilation. And the influence is not disappeared in ashort time in both deferent ventilations.
Technique of dynamical mesh airflow contaminant distribution CFD TVOCs
Tianfu Deng Quan Zhang Guoqiang Zhang
College of Civil Engineering, Hunan University, Changsha, 410082, Hunan, China
国际会议
北京
英文
2007-09-03（万方平台首次上网日期，不代表论文的发表时间）