Adarad DUNATECH 2012 - Page 3

TECHNICAL DATA
Model DUNATECH3 DUNATECH4 DUNATECH5 DUNATECH6 DUNATECH7 DUNATECH8
Numberofsections 345678
Fuels
Outputrange kW 14‐17 20‐27 27‐34 33‐41 38‐46 42‐51
Netweight kg 135 165 195 225 256 286
Watercontent lt 22 28 34 40 46 52
Combustionchembervolume dm3 30 42 55 68 81 94
Fuelloadingvolume dm3 20 28 36 45 53 62
Maxfuelloadingheight cm
Temperaturecontrolrange °C
Maximumoperatingtemperature °C
Minimumreturntemperature °C
Safetysystemactivatedat °C
Maximumoperatingpressure bar
Flueoutletdiameter mm
Waterflow/returnconnections R
Height(H2) mm
Width
(A) mm
Length(L) mm 515 615 715 815 915 1015
Fueltype
Output kW 12‐14. 18‐20 25‐27 30‐33 34‐38 42‐44
Efficiency %727475767574
Boilerclass No 222222
Maximumfuelcharge kg 9 13.5 18 22.5 27 31.5
Combustionperiodatmaxload h
Requestedfuelparameters
Averagefluegastemperature °C 280 275 240 240 260 260
Fluegasmassflow g/s 6.6 10.2 13.9 18.1 22.9 28.9
Requireddraftatchimney
mbar
0.15‐0.2 0.15‐0.22 0.15‐0.25 0.15‐0.26 0.15‐0.27 0.15‐0.28
Watersideresistancefor∆t=20°K
mbar
0.13 0.51 1.03 1.81 2.92 4.63
0.48 1.36 2.50 4.18 6.53 10.14
A f CO %10 O
/N ³
Woodlogs
Woodlogs,hardcoal
27
30to90
100
50(recommended)
95
3
160
11/2"
950
490
2to4hour
Maximumwatercontent20%
Maximumcrosssection10cmx10cm
Averagecalorificvalue17.000‐20.000kJ/kg
Watersideresistancefor∆t=20°K(withsafetyheat
exchanger)
mbar
900 1200
4
AveragecontentofCOto%10O₂ mg/Nm³
Fueltype
Output kW 15‐17 24‐27 31‐34 38‐41 43‐46 48‐51
Efficiency %727475767574
Boilerclass No 222222
Maximumfuelcharge kg 13 18 23 27 32 36
Combustionperiodatmaxload h
Requestedfuelparameters
Averagefluegastemperature °C 280 275 240 240 260 260
Fluegasmassflow g/s 10.1 15.5 20.8 26.9 33.8 41.5
Requireddraftatchimney
mbar
0.15‐0.2 0.15‐0.22 0.15‐0.25 0.15‐0.26 0.15‐0.27 0.15‐0.28
Watersideresistancefor
∆t=20°K
mbar
0.24 0.76 1.46 2.47 3.90 5.84
0.74 1.90 3.41 5.59 8.61 12.66
AveragecontentofCOto%10O₂ mg/Nm³
Watersideresistancefor∆t=20°K(withsafetyheat
exchanger)
mbar
1800‐2200
900‐1200
Hardcoal
4to6hour
Maximumwatercontent15%
Averagesizebetween30to60mm
Averagecalorificvalue26.000‐35.000kJ/kg
44