 |
| Titel |
Homogeneous nucleation of sulfuric acid and water mixture: experimental setup and first results |
| VerfasserIn |
D. Brus, A.-P. Hyvärinen, Y. Viisanen, M. Kulmala  , H. Lihavainen |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 6 ; Nr. 10, no. 6 (2010-03-18), S.2631-2641 |
| Datensatznummer |
250008246
|
| Publikation (Nr.) |
 copernicus.org/acp-10-2631-2010.pdf |
|
|
|
|
|
| Zusammenfassung |
| In this study we introduce a new flow tube suitable for binary and ternary
homogeneous nucleation studies. The production of sulfuric acid and water
vapor mixture, the experimental setup and the method of sulfuric acid
concentration determination are discussed in detail. Wall losses were
estimated from the measured sulfuric acid concentration profiles along the
flow tube and compared to a theoretical prediction. In this investigation
the experimental evidence of new particle formation was observed at a
concentration of 109 molecules cm−3 of sulfuric acid and the
nucleation rates measured at three relative humidities (RH) 10, 30 and
50%, cover six orders of magnitude, from 10−3 to 103 particles cm−3.
Particle free air was used as a carrier gas. Our
initial results are compared to the theoretical prediction of binary
homogeneous nucleation, to results obtained by other investigators, and to
atmospheric nucleation. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|