$3-24.$ Two thousand $cfm(1\mathrm{.}0\frac{m^3}{s})$ of air at an initial state of $60F(16C)db$ and relative humidity

of $30$ percent is to be heated and humidified to a final state of $110F(43C)db$ and $30$ percent

relative humidity. Assume sea$-$level pressure throughout. The air will first be heated followed

by adiabatic humidification using saturated vapor at $5a(34\mathrm{.}5$kPa$).$ Using the psychromet$-$

ric chart, find the heat transfer rate for the heating coil and the mass flow rate of the water vapor

and sketch the processes on a skeleton chart showing pertinent data. Use SI units.