p.
31/48
Figure 5.10.
Choosing
the operating thermal capacity stage of the pellet burner of series “GP
IV” control module.
NOTE :
use the buttons „
+
” and „
– ”
in order to
се choose the desired operating thermal
capacity stage of the pellet burner. Press the button „S” in order to confirm the choice, in
order to exit from the operating menu item press the “ ESC ” button.
5.3.
Adjustment of the thermal capacity of the burner
The adjustment of the thermal capacity of the pellet burner is made by choosing the
operating thermal capacity stage, which actually defines burner’s thermal capacity.
Information for the thermal capacity of the burner at different stages of the thermal
capacities is given in Table 5.1.
ATTENTION:
In case the fuel has been changed (for example the class of the pellets is
changed) this could cause additional adjustment of the pellet burner operating parameters, as
well as the operating thermal capacity of the burner.
5.3.1.
Decreasing the thermal capacity of the pellet burner
The thermal capacity of the pellet burner is decreased by decreasing the thermal
capacity operating set-stage, which results in reduced thermal capacity of the burner as
well as lowered fuel consumption rate;
5.3.2.
Increasing the thermal capacity of the pellet burner
The thermal capacity of the pellet burner is increased by increasing the thermal
capacity operating set-stage, which results in increased thermal capacity of the burner
as well as increased fuel consumption rate;
NOTES:
At any change of the thermal capacity set-point of the pellet burner, the operating
algorithm of the burner automatically makes changes of the operating values for the
air flow rate, supplied by the air fan, as well as the fuel flow rate, which allows
optimal operation in wide thermal capacity range of the pellet burner;
The default values of the operating parameters of the pellet burner of series “GP” are
derived at the following conditions:
o
The fuel is wood pellets, with diameter d=8 mm,
A
category (see table of wood
pellets categories);
o
The axial inclination of the fuel transport auger (the angle between the auger
axis and horizontal plane) is 45
o
;
The ash content (mineral, incombustible content in the fuel) does not influence
significantly the gross calorific value of the fuel, but requires specialized design of the