Mathematical Model of a Flash Drying Process

Table 11

For the purpose of the numerical calculations, the particle size, 𝑠, is divided into discrete classes. These have been chosen so as to correspond to the number and mesh sizes of sieves commonly used to determine the particle size distribution of the crushed coal.

𝐽	𝑠	Δ𝑠
1	3	2–5
2	1.5	1-2
3	0.75	0.5–1
4	0.375	0.25–0.5
5	0.1875	0.125–0.25
6	0.09375	0.0625–0.125
7	0.046875	0.03125–0.0625
8	0.023438	0.01–0.03125