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

rozcestnik-kotle-1

rozcestnik-kotle-2

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

Left sided

Right sided

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	Tested fuel	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
AUTOMATIC BIOMASS BOILERS SMART 250		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 volume of 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