SMART BOILERS OPERATING DATA |
Marking |
|
300 |
Nominal power Pn |
kW |
300 |
Partial load (power) Pp |
kW |
75 |
Boiler efficiency at Pn |
% |
>95 |
Boiler class |
|
5 |
Water volume |
l |
690 |
Diameter of water connection |
“ |
4 |
Diameter of water connection |
DN |
100 |
Hydraulic-pressure drop of the boiler at the temperature fall 20° |
mbar
|
95
|
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 |
99,6 |
Combustion temperature at Pp |
°C |
63,1 |
Diameter of flue gas duct |
mm |
300 |
Diameter of chimney |
mm |
350 |
Wood pellets – C1 |
Tested fuel |
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 |
300 |
300 |
300 |
300 |
Combustion product temperature |
°C |
92,5 |
64,2 |
99,6 |
63,1 |
Fuel consumption |
kg/hour |
67,15 |
16,42 |
75,50 |
18,70 |
Input water temperature |
°C |
56,7 |
60,0 |
59,0 |
57,4 |
Outlet water temperature |
°C |
73,3 |
75,8 |
74,7 |
75,0 |
Cooling water temperature |
°C |
9,6 |
11,1 |
9,6 |
11,0 |
Cooling water flow rate |
m3/hod |
15,234 |
3,873 |
16,850 |
3,720 |
Draught behind boiler |
Pa |
130,0 |
25,0 |
130,0 |
25,0 |
Ambient temperature |
°C |
24,4 |
21,5 |
26,4 |
23,6 |
Relative air humidity |
% |
42,9 |
43,7 |
46,9 |
47,2 |
Barometric pressure |
kPa |
99,20 |
99,30 |
99,10 |
99,30 |
Oxygen O2 |
% |
7,12 |
11,32 |
7,11 |
11,68 |
Carbon dioxide CO2 |
% |
11,66 |
9,13 |
12,35 |
8,44 |
Carbon monoxide CO |
ppm |
59 |
155 |
63 |
180 |
Higher hydrocarbons OGC |
ppm |
2 |
6 |
4 |
7 |
Nitrogen dioxides Nox |
ppm |
80 |
55 |
87 |
48 |
Dust |
mg/m3 |
35 |
31 |
25 |
41 |
Carbon monoxide CO |
mg/m3 |
58 |
220 |
63 |
265 |
Higher hydrocarbons OGC |
mg/m3 |
1 |
4 |
2 |
4 |
Nitrogen dioxides Nox |
mg/m3 |
130 |
129 |
142 |
116 |
Dust |
mg/m3 |
27 |
35 |
20 |
48 |
Mass flow rate gases |
kg/sec |
0,196 |
0,060 |
0,191 |
0,066 |
Stoichiometric oxygen value |
m3/kg |
0,958 |
0,957 |
0,832 |
0,830 |
Stoichiometric air value |
m3/kg |
4,560 |
4,558 |
3,963 |
3,950 |
Stoichiometric volumeof dry combustion products |
m3/kg |
4,449 |
4,446 |
3,883 |
3,871 |
Stoichiometric air multiple |
|
1,50 |
2,14 |
1,50 |
2,23 |
Volume of dry combustion products, actual |
m3/kg |
7,254 |
9,245 |
6,088 |
8,857 |
Volume of H2O in the combustion air |
m3/kg |
0,091 |
0,111 |
0,099 |
0,124 |
Volume of H2O in the combustion produts |
m3/kg |
0,946 |
0,966 |
0,945 |
0,971 |
Maximum volume CO2 |
% |
19,01 |
19,01 |
19,37 |
19,36 |
Loss of sensible heat of combustion products (chimney) |
% |
4,6 |
3,6 |
4,7 |
3,5 |
Loss of gas underburning |
% |
0,0 |
0,1 |
0,0 |
0,1 |
Loss of mechanical underburning |
% |
0,0 |
0,1 |
0,3 |
0,6 |
Loss of heat transfer into the environment |
% |
0,7 |
1,8 |
0,6 |
1,4 |
Total loss |
% |
5,4 |
5,6 |
5,5 |
5,5 |
Efficiency – indirect method |
% |
94,6 |
94,4 |
94,5 |
94,5 |
Heat input |
kW |
308,8 |
75,5 |
322,7 |
80,0 |
Heat capacity |
kW |
293,6 |
71,8 |
307,1 |
76,4 |
Uncertainty of determining heat capacity |
% +/- |
12,3 |
3,0 |
12,9 |
3,2 |
Efficiency – direct method |
% |
95,1 |
95,0 |
95,2 |
95,5 |
Capacity / rated output |
% |
97,9 |
23,9 |
102,4 |
25,5 |
|