Table 2. Expressions for modelling MR, drying rate and drying time.
Drying
model |
Moisture ratio
( MR) |
Drying rate
( dMR/dt) |
Drying time
( t) |
---|---|---|---|
Page | MR = exp(-kt n) | dMR/dt = knt n-1 e -kt n | t = (-ln MR/k) n-1) |
Newton | MR = exp(-kt) | dMR/dt = ke -kt | t = -ln MR/k |
Logarithmic | MR = a + b exp(-kt) | dMR/dt = kne -kt | t = (-ln MR/k)/b |
Henderson | MR = a exp(-kt) | dMR/dt = kne -kt | t = (-ln MR/k)/b |