Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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An air dryer is used to dry wet coal at a rate of 10,000 tons per day. Wet coal feed has 24 percent by mass of water when it enters and 4 percent when it exits. The hot air used to dry the wet coal is heated to 40°C for the dry bulb and 16°C for the wet bulb. At 30°C, the moist air exits the dryer with a relative humidity of 40%. Calculate the dry amount of air in m3/h at STP. (Use psychrometric chart)

Relative Humidity (%)
100 90 80 70
30
30
6.0
25
50
Wet Bulb Temperature (°C)
20
Dew Point (°C)
40
20
15
30
10
10
20
10
-10
10
20
30
40
Dry Bulb Temperature (°C)
Mixing Ratio (g/kg)
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Transcribed Image Text:Relative Humidity (%) 100 90 80 70 30 30 6.0 25 50 Wet Bulb Temperature (°C) 20 Dew Point (°C) 40 20 15 30 10 10 20 10 -10 10 20 30 40 Dry Bulb Temperature (°C) Mixing Ratio (g/kg)
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