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Classification of wood pellets, considering their physical properties (based on
fuel proximate analysis) – according to fuel evaluation method, developed and
applied in pellet burner producer company is show on the following table.
Pellet’s category
A
d
DU
A
%
6
.
0
d
A
%
0
.
97
DU
AB
%
6
.
0
d
A
%
0
.
97
DU
B
%
0
.
1
6
.
0
d
A
%
0
.
97
DU
BC
%
0
.
1
6
.
0
d
A
%
0
.
97
DU
C
%
0
.
2
%
0
.
1
d
A
%
0
.
97
DU
CD
%
0
.
2
%
0
.
1
d
A
%
0
.
97
DU
D
%
0
.
3
%
0
.
2
d
A
%
0
.
97
DU
DE
%
0
.
3
%
0
.
2
d
A
%
0
.
97
DU
E
%
0
.
3
d
A
%
0
.
97
DU
EF
%
0
.
3
d
A
%
0
.
97
DU
Table 2.4.
Pellets classification, considering their physical properties
where :
A
d
– ash contents, dry basis
, [%];
DU
– mechanical durability
, [%];