35
Exhaust Gas Test
Exhaust gas test
To ensure an economically efficient and trouble-free
operation of the system it will be necessary to
adjust the burner specifically in accordance with the
furnace system. This is achieved by means of a
fuel-combustion air compound control unit which
adjusts the burner to ensure a proper combustion.
Exhaust gas tests are required for this purpose.
The percentage CO
2
and O
2
and the exhaust gas
temperature will have to be measured to determine
the efficiency and combustion quality.
Prior to any measurement make sure to check the
boiler and exhaust gas system for absence of
leaks.
Secondary air will falsify the measured results
Check that the exhaust gases have a residual oxy-
gen (O
2
) content as low as possible and a carbon
dioxide (CO
2
) content as high as possible.
The carbon monoxide content of the exhaust gases
must be below the currently applicable specificati-
ons in all load stages.
In the fuel oil combustion mode the permissible
soot number in the exhaust gas is not allowed to be
exceeded.
Ratio between O
2
- and CO
2
- for
light oil EL (CO
2
max =15,40%)
% O
2
% CO
2
% O
2
%
CO
2
0,00
15,40
3,00
13,19
0,10
15,33
3,10
13,12
0,20
15,25
3,20
13,04
0,30
15,18
3,30
12,97
0,40
15,11
3,40
12,89
0,50
15,03
3,50
12,82
0,60
14,96
3,60
12,75
0,70
14,88
3,70
12,67
0,80
14,81
3,80
12,60
0,90
14,74
3,90
12,53
1,00
14,66
4,00
12,45
1,10
14,59
4,10
12,38
1,20
14,52
4,20
12,31
1,30
14,44
4,30
12,23
1,40
14,37
4,40
12,16
1,50
14,29
4,50
12,08
1,60
14,22
4,60
12,01
1,70
14,15
4,70
11,94
1,80
14,07
4,80
11,86
1,90
14,00
4,90
11,79
2,00
13,93
5,00
11,72
2,10
13,85
5,10
11,64
2,20
13,78
5,20
11,57
2,30
13,71
5,30
11,49
2,40
13,63
5,40
11,42
2,50
13,56
5,50
11,35
2,60
13,48
5,60
11,27
2,70
13,41
5,70
11,20
2,80
13,34
5,80
11,13
2,90
13,26
5,90
11,05
O
2
21
CO
2max
CO
2gem
–
CO
2max
-----------------------------------------------
×
%
=
=
O
2
21
CO
2max
CO
2gem
–
CO
2max
-----------------------------------------------
×
%
=
=
Ratio between O
2
- and CO
2
- for
heavy oil (CO
2
max =15,90%)
% O
2
% CO
2
% O
2
% CO
2
0,00
15,90
3,00
13,63
0,10
15,82
3,10
13,55
0,20
15,75
3,20
13,48
0,30
15,67
3,30
13,40
0,40
15,60
3,40
13,33
0,50
15,52
3,50
13,25
0,60
15,45
3,60
13,17
0,70
15,37
3,70
13,10
0,80
15,29
3,80
13,02
0,90
15,22
3,90
12,95
1,00
15,14
4,00
12,87
1,10
15,07
4,10
12,80
1,20
14,99
4,20
12,72
1,30
14,92
4,30
12,64
1,40
14,84
4,40
12,57
1,50
14,76
4,50
12,49
1,60
14,69
4,60
12,42
1,70
14,61
4,70
12,34
1,80
14,54
4,80
12,27
1,90
14,46
4,90
12,19
2,00
14,39
5,00
12,11
2,10
14,31
5,10
12,04
2,20
14,23
5,20
11,96
2,30
14,16
5,30
11,86
2,40
14,08
5,40
11,81
2,50
14,01
5,50
11,74
2,60
13,93
5,60
11,66
2,70
13,86
5,70
11,58
2,80
13,78
5,80
11,51
2,90
13,70
5,90
11,43
O
2
21
2max
CO
2gem
–
CO
2max
-----------------------------------------
×
%
=
=
