Wet and Dry Bulb

A JavaScript routine that calculates the relative humidity given the wet and dry bulb temperatures.

In terms of using the Frio coolers over a 0.5 liter thermos, the dry bulb temperature is the temperature of the air around the thermos, the wet bulb temperature is the (lower) temperature that you would like the Frio coolers to keep the outside of the thermos, and the RH is then the maximum Relative Humidity that will allow that much cooling due to evaporation.

Enter the dry bulb temperature ( T_dry ) and wet bulb temperature ( T_wet) in degrees Farenheit, then click on the Calculate RH button

Tdry

Twet