A stream of atmospheric air of specific humidity Wa passes through a water spray and comes...

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A stream of atmospheric air of specific humidity Wa passes through a water spray and comes out with @b. Under what conditions

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for wf < Wa, the required condition 18: The dey bulb temperature (OBT) of the water spray must be more than the defe point ai Please dear thumpsup for the answer. Thank you.

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