TITLE

Homogeneous nucleation rates from the piston-expansion tube using a digital camera

AUTHOR(S)
Peters, Franz; Graßmann, Arne
PUB. DATE
August 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 534 Issue 1, p79
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Homogeneous nucleation rates of n-pentanol in nitrogen are obtained from a piston-expansion tube (pex-tube) involving the nucleation pulse method which generates a limited number of nuclei that grow into droplets. The detection of the droplets is achieved by a new counting method developed on the basis of a CCD camera in combination with a laser light sheet. Nucleation rates between 10[sup 4] and 10[sup 9] cm[sup -3]s[sup -1] are covered for the nucleation temperature 260 K. The rates are plotted as isotherms versus supersaturation. An influence of the initial expansion temperature on the nucleation rate is identified. Literature data from other expansion experiments agree with our finding.
ACCESSION #
5669644

 

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