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OPERATING CHECKS
The heating system must be correctly operated to ensure perfect combustion as far as possible with reduced emissions of carbon
monoxide, unburnt hydrocarbons and soot into the atmosphere, and to avoid hazards and damage to people and goods.
Guide to combustion values:
FUELS
Gas
Gas oil
Heavy oil
A diagram is provided in which the system efficiency is obtained according to the flue gas temperature, the ambient tempe-
rature and the percentage of carbon dioxide (CO
Example:
Fuel used:
GAS OIL
Ambient temperature:
20°C
%CO
:
13%
2
Efficiency:
91,4%
Key
Tf
Flue gas temperature
Ta
Ambient temperature °C
Go
Gas oil
Ho
Heavy oil
G
Gas
%CO 2
FLUE GASES TEMPERATURE
10
13
13,5
). Dispersions through the boiler casings are not considered.
2
% EFFICIENCY CHART
(significant losses only)
- 25
-
190°C
195°C
10 – 80 ppm
200°C
50 – 150 ppm
OPERATION
% CO
0 – 20 ppm
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