Operating Instructions and Installation Instructions

LR, LRK, LR-NT, LRK-NT 21 - 32
We reserve the right to make changes to dimensions and construction 26 edition 30.10.2007
4.7.5. Pyronox LRK-NT (low-NOx version)
Technical specifications recuperator (fuel oil, low NOx)
LRK-NT 21 22 23 24 25 26 27 28 29 30 31 32
Power
Nominal power qN (30 / 35°C)
max.
1
36 35 42 44 53 61 69 83 115 138 166 238
min.
1,3
12 15 15 20 20 28 34 34 40 50 70 72
Efficiencies
Overall efficiency 30 / 35 °C
100%
1
%
98.1 98.4 98.2 98.6 98.2 98.3 98.6 98.2 98.2 98.2 98.2 98.0
Overall efficiency 30 / 35 °C
30%
2,3
%
102.8 102.6 102.8 102.6 102.8 102.6 102.6 102.8 102.9 102.9 102.8 103.0
Efficiency DIN4702-8, 60 / 75 °C
ηN
%
102.4 102.5 102.5 102.5 102.5 102.5 102.5 102.6 102.6 102.6 102.7 102.5
Exhaust gas data, losses
Additional exhaust gas pressure drop
max
mbar
1.98 0.96 1.20 1.49 1.94 1.33 0.92 1.21 2.03 1.73 1.68 1.72
Total combustion space overpressure
max
mbar
6.39 4.18 5.16 5.62 7.23 6.55 5.76 7.52 9.40 9.77 9.77 9.12
Exhaust gas temperature at 30 / 35 °C
max.
1
51 48 50 48 50 49 48 50 52 51 50 54
min.
1,3
34 34 34 35 35 35 35 35 34 34 35 34
Exhaust gas losses at 30 / 35 °C
max.
1
%
1.61.51.61.41.61.51.51.61.71.71.61.8
Stand-by loss qB
70 °C
W
824 926 926 1073 1073 1239 1447 1447 1645 1831 2166 2427
Hydraulic data
Water resistance
Δt=5K
16 21 30 23 32 31 28 41 51 50 46 67
Δt=10K
45868871013131217
Water flow
max. 6.2 6.0 7.2 7.5 9.1 10.5 11.8 14.2 19.7 23.7 28.5 40.8
min. 5.5 7.3 9.5 7.3 10.3 8.3 10.0 13.5 16.0 13.0 13.3 16.5
Condensate
Amount of condensate
max.
L / h
14 16 18 21 23 27 33 35 41 50 66 75
Values at:
3zugskessel, V-09/07
- lamda=1.2, CO2=12.7%
NT-OB
- T-air=20°C, rel. humidity=60%, p-baro=100kPa
1: Boiler at 60 / 80 °C
2: Boiler at 35 / 60 °C
3: Max. sulphur content 0.05% (500 ppm)
kW
mbar
°C
m3/h
Technical specifications recuperator (natural gas, low NOx)
LRK-NT 21 22 23 24 25 26 27 28 29 30 31 32
Power
Nominal power qN (30 / 35°C)
max.
1
56 62 68 77 87 105 121 137 173 211 267 316
min.
1
11 14 14 18 18 29 36 36 41 52 78 79
Efficiencies
Overall efficiency 30 / 35 °C
100%
1
%
101.9 103.2 102.5 103.4 102.6 102.9 103.4 102.5 101.8 101.9 102.3 100.6
Overall efficiency 30 / 35 °C
30%
2
%
107.7 107.7 107.7 107.6 107.7 107.7 107.6 107.8 107.9 107.9 107.8 107.9
Efficiency DIN4702-8, 60 / 75 °C
ηN
%
106.9 107.1 107.0 107.2 107.1 107.2 107.2 107.2 107.1 107.2 107.3 107.1
Exhaust gas data, losses
Additional exhaust gas pressure drop
max
mbar
2.02 0.98 1.23 1.52 1.98 1.36 0.94 1.24 2.08 1.77 1.72 1.76
Total combustion space overpressure
max
mbar
6.51 4.26 5.26 5.73 7.38 6.69 5.87 7.69 9.60 9.98 9.98 9.31
Exhaust gas temperature at 30 / 35 °C
max.
1
51 48 49 47 49 48 47 49 51 51 50 53
min.
1
31 32 32 32 32 32 32 32 32 32 32 32
Exhaust gas losses at 30 / 35 °C
max.
1
%
1.6 1.5 1.6 1.4 1.6 1.5 1.5 1.6 1.7 1.7 1.6 1.8
Stand-by loss qB
70 °C
W
824 926 926 1073 1073 1239 1447 1447 1645 1831 2166 2427
Hydraulic data
Water resistance
Δ
t=5K
37 66 80 70 89 92 86 111 114 117 119 119
Δ
t=10K
9 1720182223222829293030
Water flow
max. 9.6 10.6 11.7 13.2 14.9 18.0 20.7 23.5 29.7 36.2 45.8 54.2
min. 5.5 7.3 9.5 7.3 10.3 8.3 10.0 13.5 16.0 13.0 13.3 16.5
Condensate
Amount of condensate
max.
L / h
36 41 45 54 58 70 85 92 115 135 170 200
Values at:
3zugskessel, V-09/07
- lamda=1.15, CO2=10%
NT-GB
- T-air=20°C, rel. humidity=60%, p-baro=100kPa
1: Boiler at 60 / 80 °C
2: Boiler at 45 / 70 °C
m3/h
kW
mbar
°C
© Copyright YGNIS AG CH-Ruswil