Wet towels at the Biltmore Hotel are dried in a continuous dryer after washing for use by hotel guests. The towels contain 45% water (by mass) when they enter the dryer and 3% water (by mass) when they exit the dryer. The slightly damp towels (3% water) exit the dryer at a rate of 850 kg/day. Hot, perfectly dry air (115°F, 1 atm) is also fed into the dryer. When the air leaves the dryer is has cooled to 100°F (1 atm still) and has a relative humidity of 55%.
a. Determine the volumetric flow rate of air (m3/day) entering the dryer.
b. Determine the mass flow rate of towels (kg/day) entering the dryer.
The question belongs to Chemical Engineering and it discusses about calculating the volumetric flow rate of air entering and the mass flow rate of towels entering a dryer.
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