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Akustinio lauko įtakos aerozolio dalelių koaguliacijai eksperimentiniai tyrimai

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Date
2015
Author
Tetsmann, Ina
Grinbergienė, Irina
Čereška, Audrius
Metadata
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Abstract
Atlikti labai mažo skersmens kietųjų dalelių koaguliacijos efektyvumo, priklausomai nuo akustinio lauko garso slėgio ir dažnio, tyrimai. Aprašytas tyrimams atlikti naudotas eksperimentinis stendas ir eksperimentų atlikimo metodika. Akustiniam laukui žadinti naudoti du garso generatoriai: pjezoelektrinis ir aeroakustinis. Atlikus tyrimus nustatyta, kad, didėjant akustinio poveikio dažniui, dalelių koaguliacijos greitis didėja, kai dalelių skersmuo neviršija 1 μm. Efektyviausiai dalelių iki 1 μm skersmens koaguliacijai reikia ultragarsinių dažnių, didesnio nei 1 μm skersmens dalelėms reikia žemesnio dažnio už ultragarsinį.
 
There were made tests of coagulation efficiency of particulate matter (aerosol), which depends on the acoustic field sound pressure and frequency. Experimental stand was presented that was used to do research, and a methodology of experiments was described. Two sound generators for acoustic field excitation were used: piezo-electric and aero-acoustic. It was determined after researches that after increasing the frequency of the acoustic field, particle coagulation rate is increased, if particle diameter is not greater than 1 μm. For coagulation of particles having the diameter larger than 1 μm frequency lower than the frequencies of the supersonic band is required. Particles which have the diameter which is smaller than 1 μm coagulate most effectively in the band of supersonic frequencies.
 
Issue date (year)
2015
URI
https://etalpykla.vilniustech.lt/handle/123456789/115944
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  • Straipsniai kituose recenzuojamuose leidiniuose / Articles in other peer-reviewed sources [8559]

 

 

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