Deposition Rates on Smooth Surfaces and Coagulation of Aerosol Particles Inside a Test Chamber

Hussein, T.; Hruška, A.; Dohányosová, Pavla; Ondráčková, Lucie; Hemerka, J.; Kulmala, M.; Smolík, Jiří

doi:https://dx.doi.org/10.1016/j.atmosenv.2008.10.059

Number of the records: 1

Deposition Rates on Smooth Surfaces and Coagulation of Aerosol Particles Inside a Test Chamber

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SYSNO ASEP	0318562
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Deposition Rates on Smooth Surfaces and Coagulation of Aerosol Particles Inside a Test Chamber
Title	Depoziční rychlosti na hladkých površích a koagulace aerosolových částic v experimentální komoře
Author(s)	Hussein, T. (FI) Hruška, A. (CZ) Dohányosová, Pavla (UCHP-M) Ondráčková, Lucie (UCHP-M)_{RID, ORCID, SAI} Hemerka, J. (CZ) Kulmala, M. (FI) Smolík, Jiří (UCHP-M)_{RID, ORCID, SAI}
Number of authors	7
Source Title	Atmospheric Environment. - : Elsevier - ISSN 1352-2310 Roč. 43, č. 4 (2009), s. 905-914
Number of pages	10 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	deposition rate ; turbophoresis ; coagulation
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	GA101/04/1190 GA ČR - Czech Science Foundation (CSF)
	GA101/07/1361 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000263188100018
DOI	10.1016/j.atmosenv.2008.10.059
Annotation	In this study, we estimated the deposition rate of aerosol particles on smooth aluminum surfaces inside a test chamber. We investigated the influence of turbulent intensity due to ventilation and fan operation. We also investigated two important processes in particle deposition: turbophoresis, which is significant for micron particles, and coagulation, which is relevant to ultrafine particles at high particle concentrations. Our analysis included semi empirical estimates of the deposition rates that were compared to available deposition models and verified with simulations of an aerosol dynamics model. In agreement with previous studies, this study found that induced turbulent intensity greatly enhanced deposition rates of fine particles. The deposition rate of FP was proportional to the ventilation rate, and it increased monotonically with fan speed. With our setup, turbophoresis was very important for coarse particles larger than 5 micrometer.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2009

Number of the records: 1