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LR, LRK, LR-NT, LRK-NT 21 - 32
We reserve the right to make changes to dimensions and construction 18 edition 30.10.2007
4.6.5. Pyronox LR-NT
Technical specifications LR-NT (fuel oil)
LR-NT 212223242526272829303132
Power
Boiler nominal power qN (80/60°C)
max. 530 580 630 700 800 895 1150 1300 1650 1900 2500 2750
min. 185 235 235 315 315 422 512 512 602 740 1035 1048
Calorific power qF
max. 592 638 698 766 885 980 1263 1444 1846 2113 2776 3079
min.
2
196 248 248 332 332 444 540 540 634 779 1089 1104
Modulation rate at 80/60 °C
2
33% 39% 36% 43% 38% 45% 43% 37% 34% 37% 39% 36%
Efficiencies
Overall efficiency 60 / 80 °C
100%
%
89.5 90.9 90.3 91.4 90.4 91.4 91.0 90.0 89.3 89.9 90.0 89.3
Overall efficiency @ tm = 48 °C
30%
%
95.0 95.0 95.0 95.0 95.0 95.0 95.1 95.0 95.1 95.1 95.1 95.1
Overall efficiency 60 / 80 °C
min qF
%
94.8 94.9 94.9 94.9 94.9 95.0 95.0 95.0 94.9 95.0 95.0 95.0
Efficiency DIN4702-8, 60 / 75 °C
ηN
%
94.0 94.4 94.3 94.6 94.4 94.6 94.6 94.4 94.2 94.4 94.5 94.3
Mass flows
Fuel oil flow
max.
1
49.9 53.9 58.9 64.7 74.7 82.7 106.6 121.9 155.8 178.3 234.3 259.8
min.
1
16.5 20.9 20.9 28 28 37.5 45.5 45.5 53.5 65.7 91.9 93.1
Exhaust gas mass flow
max. wet 0.25 0.27 0.30 0.33 0.38 0.42 0.54 0.62 0.80 0.91 1.20 1.33
min. wet 0.08 0.11 0.11 0.14 0.14 0.19 0.23 0.23 0.27 0.34 0.47 0.48
Exhaust gas data, losses
Overpressure combustion chamber
max.
mbar
6.35 4.45 5.34 5.30 7.14 5.84 6.97 9.19 10.69 10.34 11.27 8.40
Exhaust gas temperature at 80/60 °C
max. 235 207 220 197 218 197 205 225 240 227 225 239
min.
2
Exhaust gas losses at 80/60 °C
max.
%
10.3 8.9 9.5 8.4 9.4 8.5 8.8 9.8 10.6 10.0 9.5 10.6
Stand-by loss qB
70 °C
W
781 883 883 102010201178138213821565174220732330
Hydraulic data
Water resistance
Δt=10K
42 50 59 73 96 120 81 103 167 106 184 70
Δt=20K
11 13 15 18 24 30 20 26 42 27 46 18
Water flow
max. 45.5 54.1 54.1 68.7 68.7 76.9 111.7 111.7 141.8 163.2 214.8 257.8
Operating temperatures
max.
SCO
Values acc. EN304 at:
3zugskessel, V-09/07
- lamda=1.2, CO2=12.7%
NT-OG
- T-air=20°C, rel. humidity=60%, p-baro=100kPa
1: LCV = 11.85 kWh/kg
2: Sulphur content up to 0.2%
110
95
m3/h
°C
kW
kW
mbar
kg/s
°C
kg/h
120
110
120
130
140
150
160
170
180
190
200
210
220
230
240
0 500 1000 1500 2000 2500 3000
QN [kW]
[°C]
OG
LR-NT21
LR-NT22
LR-NT23
LR-NT24
LR-NT25
LR-NT26
LR-NT27
LR-NT28
LR-NT29
LR-NT30
LR-NT32
LR-NT31
Smax = 0.2%
Flue gas temperature diagram LR-NT, fuel oil with clean boiler
© Copyright YGNIS AG CH-Ruswil
20


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