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Cui L.,Shandong University | Cui L.,Shandong Provincial Key Laboratory for Energy Carbon Reduction and Resource Utilization | Meng F.,Shandong University | Meng F.,Shandong Provincial Key Laboratory for Energy Carbon Reduction and Resource Utilization | And 8 more authors.
Gaodianya Jishu/High Voltage Engineering | Year: 2012

The particle size and concentration variation of PM10 droplets in evaporation processes were studied by electrical low pressure impactor (ELPI) to reveal the influence of evaporation on droplets particle size and concentration distribution. The results show that, whether droplets are charged or not, the median particle diameters of most droplets are less than 0.2 μm under a constant water spray volume and different atomization pressures after evaporation process, and the number concentration distributions of droplets are all single-peak distributions, of which the peak concentration occurs when the median particle diameter of droplets is 0.07 μm. With the increasing of atomization pressure, the total concentration of uncharged droplets keeps increasing, while that of charged droplets increases at first then decreases. The concentration of charged droplets decreases obviously, and is only about 20%~40% that of uncharged droplets after the same evaporation process.

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