$1\mathrm{.}5-8.$ Recycle in a Dryer. A solid material containing $15\mathrm{.}0wt\%$ moisture is dried so that it contains $7\mathrm{.}0wt\%$ water by blowing fresh warm air mixed with recycled air over the solid in the dryer. The inlet fresh air has a humidity of $0\mathrm{.}01kg$ water $\frac{?}{kg}$ dry air, the air from the drier that is recycled has a humidity of $0\mathrm{.}1kg$ water $\frac{?}{kg}$ dry air, and the mixed air to the dryer, $0\mathrm{.}03kg$ water $\frac{?}{kg}$ dry air. For a feed of $100kg$ solid $\frac{?}{h}$ fed to the dryer, calculate the $kg$ dry air $\frac{?}{h}$ in the fresh air, the $kg$ dry air$/$h in the recycled air, and the $k\frac{g}{h}$ of "dried" product.

Ans. $95\mathrm{.}6k\frac{g}{h}$ dry air in fresh air, $27\mathrm{.}3k\frac{g}{h}$ dry air in recycled air, and $91\mathrm{.}4k\frac{g}{h}$ "dried" product