Energy efficient reduction of fine and ultra-fine dust in a nursery
conference paper
An intervention study with a decentral electrostatic filter has been carried out in a nursery. The field study shows that it is possible to reach a reduction up to 80% of ultra-fine (<0.1 μm) and up to 68% for the PM1 and PM2,5-PM1 fractions at a relatively low energy consumption. These particle fractions were mostly determined by the outdoor concentration. Neither the children nor other indoor sources constituted a dominant source of particles. This does not hold for the courser dust (PM20-PM2,5), the indoor concentration of these particles can be up to a factor 10-50 higher than the outdoor concentration. That infiltration can be a significant contributor is illustrated by the fact that during the research the outer door of the playroom was opened for several hours. This increased the infiltration coefficient for PM2,5-PM1 and PM1 by a factor of three.
TNO Identifier
514853
Source title
13th International Conference on Indoor Air Quality and Climate 2014, 7-12 July 2014, Hong Kong, China
Pages
1-8
Files
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