Evaporation of Contaminated and Pure Water Droplets in a Wind Tunnel

Thomas E. Hoffer Desert Research Institute, University of Nevada, Reno

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Steven C. Mallen Desert Research Institute, University of Nevada, Reno

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Abstract

Measurements of evaporation rates suggest that when water droplets are exposed to certain contaminants, a monolayer can form which inhibits evaporation. Experimental droplet evaporation rates are compared to theoretical rates; for pure water the agreement is good, while for contaminated water a wide variance is noted.

Some of the implications of these experiments in relation to the dispersion of fogs are discussed.

Abstract

Measurements of evaporation rates suggest that when water droplets are exposed to certain contaminants, a monolayer can form which inhibits evaporation. Experimental droplet evaporation rates are compared to theoretical rates; for pure water the agreement is good, while for contaminated water a wide variance is noted.

Some of the implications of these experiments in relation to the dispersion of fogs are discussed.

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