for air water system wet bulb equals to dry bulb at 100 % relative humidity for that given temperature of air.
wet-buld depression
You use a Hygrometer.
That means that there is 100% humidity. Normally evaporation from the wet bulb keeps its temperature lower than the dry bulb. At 100% humidity, there would be no evaporation, so they would show the same temperature.
-17
51%.... open to the Relative Humidity chart in the reference tables. the wet bulb temperature is -1C and the dry bulb temp. is 2C, making a difference of 3C. On RH chart, go down to 3C column (difference between the Wet bulb and dry bulb) until it intersects the dry bulb 2C. At this intersection is 51%
A wet bulb measures the temperature after water evaporation allows to cool and a dry bulb measures air temperature.
the "current" temperature, ie, the temperature at which wet bulb and dry bulb are the same. when the wet bulb and dry bulb temperaturs equalized the dew point emperature equals them, because the air is saturated now.
the evaporation off the moisture on the wet bulb absorbs the heat.
it is difference between wet bulb temperature and dry bulb temperature.
wet-buld depression
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
50 percent
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
You use a Hygrometer.
That means that there is 100% humidity. Normally evaporation from the wet bulb keeps its temperature lower than the dry bulb. At 100% humidity, there would be no evaporation, so they would show the same temperature.
Because the process of evaporation absorbs heat from the bulb.