Abstract

KROGER, D.G.  and  BRANFIELD, G.R.. Evaporation from a Water Surface: Theory and Experiment. R&D j. (Matieland, Online) [online]. 2007, vol.23, pp.5-11. ISSN 2309-8988.

Evaporation from a horizontal water surface that is exposed to the natural environment is analysed. An approximate equation is deduced that predicts the turbulent convection mass transfer or evaporation rate for cases where the water surface temperature is measurably higher than that of the ambient air. An empirical equation is recommended in the case where the temperature difference is relatively small and for application at night. Evaporation rates are measured and the results are found to be in good agreement with predicted values.

Keywords : Mass transfer.