NIST Time|NIST Home|About NIST|Contact NIST

HomeAll Years:AuthorKeywordTitle2005-2010:AuthorKeywordTitle

Evaporation of a Small Water Droplet Containing an Additive.


pdf icon 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.