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Rotary Dryer
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  CALCULATIONS

 

Consider a rotary dryer for which temperature course is similar to figure 2

 

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CS = Specific heat of material kcal/kg dry solid

tG = Temperature of air stream

t = Temperature of solid

A = Cross sectional area of dryer

Z = Distance along dryer

L = Length of the dryer =1.5 m

 

U = Overall heat transfer co-effecient , kcal/(h-0C-m2 of solid surface)

 

 

FIGURE 2

 

For determining Ua use the equation (perry)

 

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 D = Dryer diameter (in feet)

 

 

For economic operation of a rotary dryer

Flow sheet describing the steps of calculations in details :

 

 

 

 

 

 

 

Cite this Simulator:

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