Evaporation rates of alkanes and alkanols from acoustically levitated drops.
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.
Tuckermann
Rudolf
R
Institut für Küstenforschung/Physikalische und Chemische Analytik, GKSS-Forschungszentrum Geesthacht GmbH, Germany. rudolf.tuckermann@gkss.de
Bauerecker
Sigurd
S
Neidhart
Bernd
B