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Technical specifications Melbury HE (natural gas)
Melbury HE
Power
Boiler nominal power qN (80/60°C)
Calorific power qF
Modulation rate
Efficiencies
Overall efficiency 60 / 80 °C
Overall efficiency 60 / 80 °C
Overall efficiency 60 / 80 °C
Efficiency DIN4702-8, 60 / 75 °C
Mass flows
Gas flow, NG type E
Exhaust gas mass flow
Exhaust gas data, losses
Overpressure combustion chamber
Exhaust gas temperature ati 80/60 °C
Exhaust gas losses at 80/60 °C
Stand-by loss qB
Hydraulic data
Water resistance
Water flow
Operating temperatures
Values acc. EN303-3 at:
- lamda=1.15, CO2=10%
- T-air=20°C, rel. humidity=60%, p-baro=100kPa
1: LCV = 9.97 kWh/nm3
2: nm3 at 0°C, 1013 mbar
3: S max = 10 mg / nm3
We reserve the right to make changes to dimensions and construction
Melbury HE, C 530 - 3000
max.
min.
max.
min.
3
3
100%
30%
min qF
N
η
max.
1,2
min.
1,2
max. wet
min. wet
max.
max.
min.
3
max.
70 °C
t=10K
∆
t=20K
∆
max.
max.
SCO
Flue gas temperature diagram Melbury HE, natural gas with clean boiler
530
580
630
700
530
580
630
700
kW
95
121
121
175
585
632
691
759
kW
99
127
127
182
17%
20%
18%
24%
%
90.7
91.8
91.3
92.2
%
95.2
95.5
95.4
95.7
%
95.6
95.7
95.7
95.8
%
94.6
95.0
94.9
95.2
58.7
63.4
69.3
76.2
nm
3
/h
10.0
12.9
12.9
18.1
0.24
0.26
0.29
0.32
kg/s
0.04
0.05
0.05
0.08
mbar
5.97
4.22
5.06
5.03
209
187
197
179
°C
%
9.1
8.0
8.5
7.6
W
781
883
883
1021
42
50
59
73
mbar
11
13
15
18
m3/h
30.4
33.2
36.1
40.1
°C
14
800
895
1150 1300
1650
800
895
1150
1300
1650
175
269
311
314
367
876
967
1248
1422
1815
182
280
324
327
383
21%
29%
26%
23%
21%
91.4
92.5
92.2
91.4
90.9
95.6
95.9
95.8
95.7
95.5
95.8
95.9
96.0
96.0
96.0
95.0
95.4
95.3
95.1
94.9
87.9
97.0
125.2 142.7 182.1 208.6 273.4 331.1
18.1
27.4
33.5
33.5
38.5
0.37
0.40
0.52
0.59
0.76
0.08
0.11
0.14
0.14
0.16
6.74
5.33
6.41
8.39
9.67
196
172
179
194
205
95
8.4
7.3
7.7
8.4
9.0
1021
1178
1382
1382
1565
96
120
81
103
167
24
30
20
26
42
45.8
51.3
65.9
74.5
94.5
95
110
Hamworthy Heating Limited – Dorset BH17 ONF
1900
2500
3000
1900
2500
3000
459
713
714
2079
2725
3300
478
743
744
23%
27%
23%
91.4
91.7
90.9
95.7
96.0
95.6
96.0
96.1
96.0
95.1
95.4
95.0
47.8
75.9
74.9
0.87
1.14
1.38
0.20
0.32
0.31
9.43
10.35
9.50
195
188
205
8.5
8.2
9.0
1742
2073
2330
106
184
84
27
46
21
108.8 143.2 171.8
3zugskessel, V-02/11
GG
edition 12.2020
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