A hot-air dryer is used to reduce the moisture content of 1500 kg/mm of wet wood pulp
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A hot-air dryer is used to reduce the moisture content of 1500 kg/mm of wet wood pulp from 0.75 kg H2Ofkg dry pulp to 0.15 wt% H2O. Air is drawn from the atmosphere at 28°C, 760 mm Hg, and 50% relative humidity, sent through a blower-heater, and then fed to the dryer. The air leaves the dryer at 80°C and 10 mm Hg (gauge). A sample of the exit air is drawn into a chamber containing a mirror and cooled slowly, keeping the gauge pressure at 10 mm Hg. A mist is observed to form on the mirror at a temperature of 40.0°C. Calculate the mass of water removed from the pulp (kg/mm) and the volumetric flow rate of air entering the system (m3/min).
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Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-0471720638
3rd Edition
Authors: Richard M. Felder, Ronald W. Rousseau
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