Firing Rates - Riello RL 190/M Installation, Use And Maintenance Instructions

4.7

Firing rates

During operation, burner output varies between:
 a MINIMUM OUTPUT: area A;
 a MAXIMUM OUTPUT: area B.
The work point is found by drawing a vertical line from the
required output and an horizontal line from the corresponding
pressure in the combustion chamber.
The intersection of these two lines is the work point which must
lie within area A for the MINIMUM output and area B for the
MAXIMUM output.
The FIRING RATE was obtained with an ambient
temperature of 20°C and a barometric pressure of
1013 mbar (approx. 0m above sea level), with the
combustion head adjusted as shown on page 20.
ATTENTION
20166451
Technical description of the burner
A
Burner output
10 GB
The burner may have to operate at a higher altitude and/or with
combustion air at a higher temperature.
Both air heating and increased altitude cause air volume
expansion, i.e. air density is reduced.
Burner fan flow rate remains basically the same but oxygen
content per cu. m of air is reduced as well as the fan thrust (head).
Therefore, it is important to know whether burner required
maximum output at a certain pressure in the combustion
chamber remains within the burner firing rate also under different
temperature and altitude conditions.
B
D1975
Fig. 2