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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Condensation aerosol generator - range of operation
 Súkeník, Michal ; Chovancová, Michaela (referee) ; Lízal, František (advisor)
In this bachelor thesis I deal with condensation aerosol generator and its range of operation. This device is based on controlled heterogenous condensation and is widely used in different fields such as inhalation studies, testing filters or calibration of measuring devices. The primary aim of the thesis is to verify the quality of producing aerosol and the depandance on the operation conditions. I also deal with methods of generated aerosols as well as their statistical description.
Detailed record
Dissolved gas effect on hydrodynamic cavitation
 Piňos, Ondřej ; Fialová, Simona (referee) ; Rudolf, Pavel (advisor)
Thesis is focused on hydrodynamic cavitation in gas saturated liquid flowing in microfluidic circuit with Ventruri noozle. Thesis describes theoretical base in fields of: gas saturation of liquids, cavitation inception, diffusion mechanisms and cavitation collapses. In practical part experiment on microfluidic circuit was done. In pressurised tank liquid was saturated by gas, after letting the mixture into noozle we observed beginning of cavitation by acoustic and visual way. Inception of cavitation was also observed by -\sigma graphs. With increasing pressure in tank we observed developed cavitation, its persistivity was compared with increasing amount of gas in liquid. Measured values are supported by theoretical part of thesis. There was nonconformity in comparison of demineralised water and tap water saturated by air, where demineralised water cavitated during higher cavitation numbers for saturating pressures of 4 and 6 kPa. Further research could focus on undersaturated water as well as on better control of water properties, especially on number of nuclei within.
Detailed record
Condensation aerosol generator - range of operation
 Súkeník, Michal ; Chovancová, Michaela (referee) ; Lízal, František (advisor)
In this bachelor thesis I deal with condensation aerosol generator and its range of operation. This device is based on controlled heterogenous condensation and is widely used in different fields such as inhalation studies, testing filters or calibration of measuring devices. The primary aim of the thesis is to verify the quality of producing aerosol and the depandance on the operation conditions. I also deal with methods of generated aerosols as well as their statistical description.
Detailed record

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