Evaporation of a Small Water Droplet Containing an Additive.
Evaporation of a Small Water Droplet Containing an
Additive.
(616 K)
King, M. D.; Yang, J. C.; Chien, W. S.; Grosshandler, W.
L.
National Heat Transfer Conference. Volume 3. HTD-Vol.
341. American Society of Mechanical Engineers (ASME).
Proceedings. August 1997, Baltimore, MD, 1-6 pp, 1997.
Keywords:
additives; evaporation; water; droplets; heat transfer;
mass transfer; physical properties
Abstract:
An experimental study on the evaporation of a small
water droplet containing an additive on a heated,
polished stainless-steel surface was performed.
Solutions of water containing 30% (w/w) and 60% (w/w) of
potassium acetate and sodium iodide were used in the
experiments. Surface temperatures used in the
experiments ranged from 50 deg C to 100 deg C. The
average evaporation rates for the potassium acetate and
sodium iodide solutions were found to be lower than that
of pure water at a given surface temperature. A simple
evaporation model was developed to interpret the
experimental results.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899