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Wet coal amounting to 1000 ton/day is dried in an air dryer. The wet coal feed enters with 12% by mass of water and exits with 2%. The hot air used to dry the wet coal is fed at 40°C dry-bulb temperature, and 16*C wet-bulb temperature. The moist air exits the dryer with 30% RH at 30*C. Calculate the amount of dry air at m3/h at STP.

Wet coal amounting to 1000 ton/day is dried in an air dryer. The wet coal feed enters with 12% by mass of water and exits with 2%. The hot air used to dry the wet coal is fed at 40°C dry-bulb temperature, and 16*C wet-bulb temperature. The moist air exits the dryer with 30% RH at 30*C. Calculate the amount of dry air at m3/h at STP.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Wet coal amounting to 1000 ton/day is dried in an air dryer. The wet coal feed enters with 12% by mass of water and exits with 25%. The hot air used to dry the wet coal is fed at 40*C dry-bulb temperature, and 16*C wet-bulb temperature. The moist air exits the dryer with 30% RH at 30*C. Calculate the amount of dry air at m3/h at STP. Use the psychrometric chart below Relative Humidity (%) 100 90 80 70 30 30 25 Wet Bulb Temperature (°C) 20 Dew Point (°C) 20 30 -10 10 20 30 40 Dry Bulb Temperature (°C) Mixing Ratio (g/kg)
Transcribed Image Text:Wet coal amounting to 1000 ton/day is dried in an air dryer. The wet coal feed enters with 12% by mass of water and exits with 25%. The hot air used to dry the wet coal is fed at 40*C dry-bulb temperature, and 16*C wet-bulb temperature. The moist air exits the dryer with 30% RH at 30*C. Calculate the amount of dry air at m3/h at STP. Use the psychrometric chart below Relative Humidity (%) 100 90 80 70 30 30 25 Wet Bulb Temperature (°C) 20 Dew Point (°C) 20 30 -10 10 20 30 40 Dry Bulb Temperature (°C) Mixing Ratio (g/kg)
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