Non-buoyant pollutant sources and particles in displacement ventilation
Non-buoyant pollutant sources and particles in displacement ventilation
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DOI：
10.1016/s0360-1323(01)00008-7
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发表时间：
2001-08
影响因子：
7.4
通讯作者：
E. Mundt
中科院分区：
文献类型：
--
作者：
E. Mundt
评估了非浮力污染源在置换通风室内的颗粒输运和通风效率。由于送风的影响或人们的走动引起的地板沉积颗粒的再悬浮可能会增加对流流中的颗粒数量。测量了稳态和瞬态条件下不同位置的颗粒浓度。结果表明，在测量的粒径区间内，受送风影响，颗粒重悬浮的风险似乎很小。强制重悬浮时，对流流中的颗粒浓度与对流流外的浓度不同。污染物的去除效果很大程度上取决于污染源的位置。
Particle transportation and ventilation efficiency, with non-buoyant pollutant sources, in a displacement-ventilated room were evaluated. A resuspension of floor deposited particles caused by the influence of the supply air or people moving around may increase the number of particles in the convection flows. Particle concentrations at different positions under steady state and transient conditions were measured. The results indicate that there seem to be little risk of resuspension of particles, in the measured size interval, by the influence of the supply air. With a forced resuspension the particle concentrations in the convection flows differ from the concentration outside the convection flow. The contaminant removal effectiveness was much dependent on the position of the pollutant sources.