Air ionization is a method used at air treatment of closed spaces. Properly applied air ionization improves health condition of bred animals, lowers the costs of pharmaceuticals and increases their efficiency. Negative ions attach themselves to particles of dust causing them to drop to the ground. The aim of the thesis was to analyse the influence of air ionization on air dustiness in a relation to temperature changes and relative air humidity in a farrowing house for sows. The farm used litter in the lairage pens. Sows were fed with dampened mixture. By the help of a data logger was measured the temperature [°C] and the relative air humidity [%]. The readings were recorded at hourly interval. Speed of the air circulation [m.s-1] in the stall and the cooling power [mcal.cm-2.s-1] were measured in the resting stage. The air dustiness in the stall was measured on the level of a lying sow in the state of resting, activity and after an activity. The data of the concentration of dust molecules in the air were recorded at interval of 10 seconds. The length of the measuring for each period was set for 8 minutes. The size adjustment of the dust molecules wasn?t specified. On selected days was applied the air ionization. At high temperature and relative humidity it came to binding of ions to the molecules of dust. At low temperature, high relative humidity and reduced intensity of air change in the stall the ionization didn?t have any influence on the dustiness because the dust settled as a result of the relative air humidity.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:52913 |
| Date | January 2011 |
| Creators | BROŽOVÁ, Jindřiška |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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