QUESTIONS

$550k\frac{g}{h}$ of wet grain with $10\%$ moisture is charged into a dryer at $25C.$ The

dried grain $($product$)$ leaves the dryer at $55C$ with a moisture of $2\%.$ For this purpose,

an air stream at $100C$ dry$-$bulb and $4\%$ relative humidity enters the dryer counter$-$

currently. If the exit air leaves the dryer at $50C$ dry and $47C$ wet$-$bulb temperature,

determine the volumetric flow rate of inlet air and the heat that must be supplied to

the dryer.