Artikel,

Evaporation Rates of Liquid Hydrocarbon Spills on Land and Water

, und .
The Canadian Journal of Chemical Engineering, 51 (4): 434--439 (August 1973)

Zusammenfassung

The mass and heat transfer processes occurring during the evaporation of liquid hydrocarbon spills on land and water are described. Equations are developed which permit predictions of liquid temperature and evaporation rates. Experimental determinations of evaporation rates for cumene, water, and gasoline were used to calculate the evaporative mass-transfer coefficients which were then correlated with wind speed, liquid pool size, and vapor-phase schmidt-number. Good agreement was found between experimental and computed cumene temperature and evaporation rates. The correlation was compared with that for flat-plate mass transfer and showed good agreement, suggesting that turbulent transfer occurs at a rate which is enhanced by the liquid surface roughness. The more complicated problem of estimating the evaporation rates of hydrocarbon mixtures, as in oil spills, is also broached.

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