Combined methods sharply drop storage evaporation

Carlos Cruz Iturri Group Seville, Spain Straight-forward preventative measures can reduce evaporative losses from tanks by 95%, with attendant economic and environmental benefits. Reducing evaporation also helps preserve product quality and reduces fire risk. This article studies the major variables affecting evaporative loss. Wind is a key variable, while ambient temperature is not. All stored liquid has a vapor pressure, which determines evaporation depending on the surface temperature and the composition of the liquid. Under static conditions, the liquid's vapor pressure establishes a balance in the vapor concentration, after which no further evaporation occurs. Petroleum storage tanks...

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