Evaporation rates of alkanes and alkanols from acoustically levitated drops |
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Authors: | Rudolf Tuckermann Sigurd Bauerecker Bernd Neidhart |
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Affiliation: | Institut für Küstenforschung/Physikalische und Chemische Analytik, GKSS-Forschungszentrum Geesthacht GmbH, Germany. rudolf.tuckermann@gkss.de |
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Abstract: | Evaporation constants of acoustically levitated drops from the homologue series of n-alkanes and 1-alkanols in ambient air have been evaluated by size and temperature measurements. The size of the pure liquid drops, within a diameter range of 0.1 to 2.5 mm, was monitored using a CCD camera, while temperature measurements were carried out by IR thermography. During drop evaporation, water from a humid environment with a relative humidity between 5 and 80% was condensed on the drop surface and in the case of n-pentane, the condensed water froze as a result of the evaporative cooling. |
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