Evaporation of Single Drops of n-Pentane/n-Hexane Mixtures in Water

[+] Author and Article Information
H. Shimaoka, Y. H. Mori

Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223, Japan

J. Heat Transfer 114(4), 965-971 (Nov 01, 1992) (7 pages) doi:10.1115/1.2911908 History: Received October 01, 1991; Revised March 01, 1992; Online May 23, 2008


The evaporation of isolated drops (2.1−3.0 mm diameter) of nonazeotropic n-pentane/n-hexane mixtures in the medium of water was observed under pressures of 0.11−0.46 MPa and temperature differences up to 27 K. The mole fractions of n-pentane, x, in the mixtures were set at 0.9, 0.5, 0.1, and 0, to be completed by the condition x = 1 set in a preceding work (Shimaoka and Mori, 1990). Experimental results are presented in terms of the instantaneous rise velocity of, and an expression of instantaneous heat transfer to, each drop evaporating and thereby transforming into a liquid/vapor two-phase bubble and finally into a vapor bubble. The dependencies of the heat transfer characteristics on the pressure, the temperature difference, and x are discussed.

Copyright © 1992 by The American Society of Mechanical Engineers
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