The moisture content of 20 tonnes of grain is to be dried from 20% to 15% (wet-basis) in 10 hours. Determine the weight of grain after drying.
Exhaust air in a grain dryer has a temperature of 30°C and a relative humidity of 60%. If the exhaust air makes contact with an uninsulated ceiling above the grain, find the lowest ceiling temperature at which condensation will not occur on the ceiling.
If the plenum temperature is 45°C, calculate the required air mass flow rate of the dryer.
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