| 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 | 
 
 
  
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