In a cooling tower, hot water of $10k\frac{g}{s}$ at $40C$ is to be cooled to $22C.$ The entering air is at $25\mathrm{.}4C$ dry bulb and $15C$ wet bulb temperatures, anc the air leaves the column at $30C$ as saturated. If there is no heat loss to surroundings, calculate the volumetric flowrate of the air.