i have a problem of finding the quantity of heat that must be added per kg of dry air through the apparatus.the apparatus is heating and humidifying apparatus.
i know the DBT the DPT the exit DBT and DPT and moisture is supplied in liquid water at 25c
to calculate the heat added i must know mass flow rates of air and water, which i dont knw, how m i supposed to calculate this, any suggestions ?

the formula for finding heat added Q is
Q= ma(h2-h1)-mwhw