The calculator on this page provides a means of calculating:-
- The wet bulb temperature for a specific dry bulb temperature and %RH.
- The likely temperature depression if using evaporative cooling for a known cooling efficiency
- The cooled temperature .
It can be seen from the calculator above that as the %RH increases the dew point temperature moves closer to the ambient temperature. At 100%RH the dew point temperature is the same as the ambient temperature. It can be seen that for low %RH environments significant temperature depresseion can be realised.