6
OPERATION
6.1
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 temperature and the percentage of carbon dioxide (CO
not considered.
Example:
Fuel used ............................GAS OIL
Ambient temperature.................20 °C
%CO
..........................................13 %
2
Efficiency.................................91.4 %
% EFFICIENCY CHART
(significant losses only)
Key:
Tf Flue gas temperature – Ta Ambient temperature °C – Go Gas oil – Ho Heavy oil – G Gas
ENGLISH
%CO
2
10
13
13.5
Flue gases temperature % CO
190°C
195°C
200°C
). Dispersions through the boiler casings are
2
3
53
0 – 20 ppm
10 – 80 ppm
50 – 150 ppm