I'm trying to confirm if the following formula is correct for determining the rate of evaporization in lbs/hr from standing water in a sink.(adsbygoogle = window.adsbygoogle || []).push({});

Formula W=[A+(B)(V)](PA-PA)/Wv where

W= Water evaporization rate, (lbs/hr) per sq. ft. of water surface area

A= Constant 68, B= Constant 32

V= Velocity over water surface, miles/hr

Pw= Vapor pressure of water at the water temperature, inches of Hg.

Pa= Vapor pressure of water at the air dewpoint temperature, inches of Hg

Hv= Heat of vaporization of water at the water temperature, Btu/lb

I came across this formula on a spread sheet that was used for another project but I can not find anything to confirm if it is correct. Also, I'm not sure what the constants are based on.

Any help would be greatly appreciated,

JJW

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# Water Evaporization from standing sinks

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