Automatic Biomass
Boilers (150–500 kW)

 

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Smart Boiler Brochure 150-500 kW

 

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Automatic Biomass
Boilers
SMART 250 kW

 

  

 
 

 

 

 

• Fully automatic, ecologic boilers with excellent features • Technical solution flexibility • Multiple fuel possibility
• Economical and ecological operation • 9 boilers in range • Efficiency 96 % • Output modulation 30–100 %
• Lambda sensor • Ceramic Burner Option • Vibrating Burner Plate Option • Low Maintenance & Service requirements
• Heating circuits regulation • Cascade installation solutions • Mobile phone control • Internet control
• Mobile container solutions • Special boiler accessories

 

 

 

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Description:

1.   Channel And Operational Bin
      Separation Valve
2.   Operational Fuel Bin
3.   Fuel Level Sensor
4.   Moving Floor Mechanism
5.   Feeding Screw
6.   Primary Fan
7.   Secondary Fans
8.   Primary Burner Ring
9.   Grating/Vibrating Wheel
10. Upper/Lower Burner Rings
11. Refractory Ceramics
12. Control Unit Siemens
13. Control Unit Cover with Display
14. Accessories
     – Ignition gun
     – Emergency Extinguishing Mechanism
     – Safety Temperature Sensors
15. Exchanger Valve Servo-Drive
16. Heat Exchanger With Turbulators
17. Combustion Chamber Ash Bin
18. Exchanger Ash Bin – Option
19. Chimney Extension Box

 

20. Fuses
21. Main Switch
22. Small Service Doors
23. Big Service Doors
24. Grating/Vibrating Mechanism
25. Primary Air Channel
26. Ash Screws
27. Bottom Insulation
28. Bottom Hi-Temp Exchanger Insulation
29. Exchanger De-ashing – Option
30. Turbulators
31. Lambda Sensor
32. Dual Boiler Insulation
33. Turbulators Drive Motor

 

SMART Boilers Application Options:

• Apartment Buildings
• Multifunctional Buildings
• Shopping Centres
• Production Plants & Industrial Premises & Storage Premises
• Agriculture & Aquaculture & Horticulture Farms
• Hotels/Motels/Wellness Centres/Pools/Sport Arenas
• Municipality Buildings
• Schools, Hospitals, Police & Army Complexes
• City Districts

  

 New design features

  • Ceramic Burner

 

 

  • Vibrating Burner Plate

 

 

DIMENSIONS AND WEIGHTS OF TECHNOLOGIES 150–250 kW

 

A B C D E F G H CH 
2825 2110 2520 940 1820 1345 1570 715 600

 

                
WEIGHTS
Burning chamber 150–250 kW 1 210 kg Total weight
Exchanger 250 kW  1 300 kg 2 510 kg

 

 
  
  
1. Water outlet DN80/PN6

2. Water inlet DN80/PN6

3. In/out water valve 3/4“
    of burning chamber

4. In/out water valve 3/4“
    of heat exchanger

5. Chimney outlet
    avg. 220 mm

5* Option for limited spaces

  

 

 

SERVICE ZONES OF TECHNOLOGIES 150–500 kW

 

SMART BOILERS OPERATING DATA
Technical data of the boiler  
Marking   250
Nominal power Pn  kW 250
Partial load (power) Pp  kW  65
Boiler efficiency at Pn  % >95 
Boiler class    5
Water  
Water volume  l  500
Diameter of water connection  “  3
Diameter of water connection DN  80
Hydraulic-pressure drop of the boiler
at the temperature fall 20°

mbar 

 87
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 96,6
Combustion temperature at Pp °C 63,1
Diameter of flue gas duct mm 220
Diameter of chimney mm 250
Fuel clasification according to norm EN 14961  
Wood pellets – C1 Tested
fuel 		 D6, M10, A1,5, DU90,0 
Wood chips – B1  P45, M30, A3.0
Electrical installation  
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 550
Ash-removing engine W 550
Fan of primary air W 66
Fan of secondary air 1 W 66
Fan of secondary air 2 W 66
Chimney exhaust fan W 300
Electrical ignition W 1600
Separation flap valve W 6,5
Total W  4304,5

 
    SMART 250
AUTOMATIC BIOMASS
BOILERS SMART 250		 Wood pellets Wood chips
Rated Minimum Rated Minimum
Measured values     
Rated heat capacity kW 250 250 250 250
Combustion product
temperature		 °C 100,4 66,9 98,6 63,1
Fuel consumption kg/hour 56,90 14,20 62,70 15,60
Input water temperature °C 57,9 62,4 59,4 59,1
Outlet water temperature °C 75,7 78,9 76,1 76,4
Cooling water temperature °C 9,6 11,1  9,6 11,0
Cooling water flow rate m3/hod 12,400 3,300 13,600 3,130
Draught behind boiler Pa 128,0 28,0 128,0 28,0
Ambient temperature °C 24,3 23,1 25,7 23,3
Relative air humidity % 43,7 44,0 44,1 43,9
Barometric pressure kPa 99,21 99,30 99,10 99,30
Flue gas analysis
Oxygen O2 % 7,45 11,77 7,43 11,59
Carbon dioxide CO2 % 11,56 8,51 12,10 8,53
Carbon monoxide CO ppm 55 162 75 169
Higher hydrocarbons OGC ppm 3 5 4 6
Nitrogen dioxides Nox ppm 80 52 86 50
Dust mg/m3 33 26 34 41
O2 = 10%     
Carbon monoxide CO  mg/m3 55 243 77 246
Higher hydrocarbons OGC  mg/m3 1 3 2 4
Nitrogen dioxides Nox  mg/m3 134 128 143 121
Dust  mg/m3 26  31  28 48
Auxiliary combustion values (solid fuels)     
Mass flow rate gases kg/sec 0,167 0,055 0,160 0,055
Stoichiometric oxygen value m3/kg 0,958 0,957 0,832 0,831
Stoichiometric air value m3/kg  4,560 4,557 3,963 3,953
Stoichiometric volumeof dry combustion products m3/kg  4,449 4,446 3,883  3,874 
Stoichiometric air multiple   1,54 2,25 1,54 2,25
Volume of dry combustion products, actual m3/kg  7,315 10,021 6,217 8,779
Volume of H2O in the combustion air m3/kg  0,095 0,133 0,091 0,172
Volume of H2O in the combustion produts m3/kg  0,949 0,988 0,937 0,959
Maximum volume CO2 % 19,01 19,00 19,37 19,40
Calculated values – heat overview 
Loss of sensible heat of combustion products (chimney) %  5,2 4,0 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 0,5
Loss of heat transfer into the environment % 0,7 1,6 0,7 1,6
Total loss %  6,0 5,8 5,7 5,7
Efficiency – indirect method %  94,0 94,2 94,3 94,3
Heat input kW  261,5 65,3 268,1 66,8
Heat capacity kW  248,8 62,2 255,4 63,7
Uncertainty of determining heat capacity % +/-  10,4 2,6 10,7 2,7
Efficiency – direct method % 95,0 95,0 95,3 95,4
Capacity / rated output % 99,5 24,9 102,0 25,5

 

 

 

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