SMART BOILERS OPERATING DATA |
Marking |
|
450 |
Nominal power Pn |
kW |
450 |
Partial load (power) Pp |
kW |
115 |
Boiler efficiency at Pn |
% |
>95 |
Boiler class |
|
5 |
Water volume |
l |
850 |
Diameter of water connection |
“ |
4 |
Diameter of water connection |
DN |
100 |
Hydraulic-pressure drop of the boiler
at the temperature fall 20° |
mbar |
122 |
Boiler temperature |
°C |
60–90° |
Minimal temperature of returnable water |
°C |
55 |
Maximal operational pressure |
bar |
3,5 |
Test pressure |
bar |
6,5 |
Temperature of furnace |
°C |
900–1100 |
Pressure of furmace |
mbar |
-0,04 |
Required draught of the chimney |
mbar |
0,2 |
Requirement for the forced draught |
|
Yes |
Combustion temperature at Pn |
°C |
98,2 |
Combustion temperature at Pp |
°C |
62,4 |
Diameter of flue gas duct |
mm |
300 |
Diameter of chimney |
mm |
350 |
Wood pellets – C1 |
Testedfuel |
D6, M10, A1,5, DU90,0 |
Wood chips – B1 |
P45, M30, A3.0 |
Electrical connection |
|
3+N+PE 50Hz 230/400V TN-C-S |
Conveyor engine |
W |
550 |
Feeding auger engine |
W |
550 |
Exchanger cleaning engine (s) |
W |
2 x 550 |
Ash-removing engine |
W |
550 |
Fan of primary air |
W |
66 |
Fan of secondary air 1 |
W |
170 |
Fan of secondary air 2 |
W |
170 |
Chimney exhaust fan |
W |
1100 |
Electrical ignition |
W |
1600 |
Separation flap valve |
W |
6,5 |
|
Wood pellets |
Wood chips |
Rated |
Minimum |
Rated |
Minimum |
Rated heat capacity |
kW |
450 |
450 |
450 |
450 |
Combustion producttemperature |
°C |
96,3 |
60,9 |
98,6 |
62,4 |
Fuel consumption |
kg/hour |
102,48 |
22,74 |
109,60 |
25,00 |
Input water temperature |
°C |
61,9 |
61,7 |
60,0 |
58,2 |
Outlet water temperature |
°C |
80,0 |
76,8 |
75,7 |
73,6 |
Cooling water temperature |
°C |
9,3 |
10,0 |
9,6 |
11,0 |
Cooling water flow rate |
m3/hod |
21,349 |
5,729 |
24,613 |
5,843 |
Draught behind boiler |
Pa |
194,0 |
25,0 |
190,0 |
26,0 |
Ambient temperature |
°C |
29,0 |
25,7 |
28,5 |
24,6 |
Relative air humidity |
% |
27,0 |
28,0 |
29,5 |
28,6 |
Barometric pressure |
kPa |
99,20 |
99,30 |
99,02 |
99,07 |
Oxygen O2 |
% |
8,52 |
8,48 |
7,30 |
10,25 |
Carbon dioxide CO2 |
% |
11,05 |
10,58 |
11,74 |
9,75 |
Carbon monoxide CO |
ppm |
128 |
89 |
176 |
160 |
Higher hydrocarbons OGC |
ppm |
13 |
2 |
1 |
5 |
Nitrogen dioxides NOx |
ppm |
62 |
72 |
106 |
73 |
Dust |
mg/m3 |
19 |
28 |
86 |
79 |
Carbon monoxide CO |
mg/m3 |
144 |
106 |
178 |
207 |
Higher hydrocarbons OGC |
mg/m3 |
6 |
1 |
1 |
3 |
Nitrogen dioxides NOx |
mg/m3 |
111 |
130 |
174 |
151 |
Dust |
mg/m3 |
17 |
25 |
34 |
48 |
Mass flow rate gases |
kg/sec |
0,316 |
0,072 |
0,290 |
0,077 |
Stoichiometric oxygen value |
m3/kg |
0,958 |
0,957 |
0,831 |
0,830 |
Stoichiometric air value |
m3/kg |
4,560 |
4,559 |
3,960 |
3,952 |
Stoichiometric volume of dry combustion products |
m3/kg |
4,448 |
4,448 |
3,881 |
3,873 |
Stoichiometric air multiple |
|
1,67 |
1,70 |
1,52 |
1,96 |
Volume of dry combustion products, actual |
m3/kg |
7,655 |
8,040 |
6,396 |
7,730 |
Volume of H2O in the combustion air |
m3/kg |
0,078 |
0,072 |
0,070 |
0,093 |
Volume of H2O in the combustion produts |
m3/kg |
0,933 |
0,927 |
0,916 |
0,917 |
Maximum volume CO2 |
% |
19,00 |
19,01 |
19,37 |
19,36 |
Loss of sensible heat of combustion products (chimney) |
% |
4,8 |
2,6 |
4,6 |
3,0 |
Loss of gas underburning |
% |
0,1 |
0,0 |
0,1 |
0,1 |
Loss of mechanical underburning |
% |
0,0 |
0,1 |
0,4 |
0,5 |
Loss of heat transfer into the environment |
% |
0,3 |
0,7 |
0,3 |
0,7 |
Total loss |
% |
5,2 |
3,4 |
5,3 |
4,2 |
Efficiency – indirect method |
% |
94,8 |
96,6 |
94,7 |
95,9 |
Heat input |
kW |
471,3 |
104,6 |
468,7 |
107,1 |
Heat capacity |
kW |
450,2 |
100,6 |
449,2 |
102,7 |
Uncertainty of determining heat capacity |
% +/- |
18,9 |
4,2 |
18,9 |
4,3 |
Efficiency – direct method |
% |
95,5 |
96,2 |
95,8 |
96,0 |
Capacity / rated output |
% |
100,0 |
22,4 |
100,1 |
23,1 |
|