Wet coal amounting to 10000 ton/day is dried in an air dryer .The wet coal feed enters with 24% by mass of water and exits with 4%.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 40% RH at 30°C. Calculate the amount of dry air atm 4/h at STP. Use psychrometric chart

Wet coal amounting to 10000 ton/day is dried in an air dryer .The wet coal feed enters with 24% by mass of water and exits with 4%.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 40% RH at 30°C. Calculate the amount of dry air atm 4/h at STP. Use psychrometric chart

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.23P: Using the information in Problem 1.22, estimate the ambient air temperature that could cause...

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Question

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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