Viadrus G 90 Series, Эксплуатация и установка

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5
Tab. no. 2 Thermal parameters of boiler
(heating value 33,99 MJ. m
-3
, gas temperature 15°C and bar. air pressure 1013,25 mbar)
Number of sections pcs 8 10 12 15
Rated thermal output max. kW 64 80 96 120
Rated thermal output min. kW 49 56 67 84
Rated thermal output max kW 71 87 105 127
Rated thermal output min kW 55 61 73 94
Volume gas flow at the maximum thermal output m
3
.h
-1
7,16 9,25 11,32 13,61
Volume gas flow at the minimum thermal output m
3
.h
-1
5,56 6,5 7,85 10,05
Efficiency at the maximum thermal output
%
91 92
Efficiency at the minimum thermal output
%
89 92
Temperature of the combustion gases after the draught diverter at
the maximum thermal output
°C 122 129 114 118
Temperature of the combustion gases after the draught diverter at
the minimum thermal output
°C 98 95 95 88
Volume of dry combustion gases actual at the maximum thermal
output
m
3
.m
-3
20,18 15,8 21,6 18,13
Volume of dry combustion gases actual at the minimum thermal
output
m
3
.m
-3
23,63 20,1 24,8 23,6
Emission values - CO mg.m
-3
5 6 8 7
- NO
x
mg./kWh 33 33 27 23
Grade of NO
x
grade V
Nozzle diameter
mm 2,42
Honeywell VR 4601 and VR 4605 valves
Informative gas pressure at the nozzle for the nominative output at
the maximum thermal output
mbar 15 14,8 14,5 14
Informative gas pressure at the nozzle for the nominative output at
the minimum thermal output
mbar 9 7,6 7,5 7,5
Dungs MB – ZRDLE 412 valve
Informative gas pressure at the nozzle for the nominative output at
the maximum thermal output
mbar - 13,8
Informative gas pressure at the nozzle for the nominative output at
the minimum thermal output
mbar - 7
Heating water pressure loss
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
0 2 4 6 8 10 12
volume water flow V (m3/h)
p
re
s
s
u
re
l
o
s
s
p
(
P
a
)
Fig. no. 1 Diagram showing the dependency between the boiler exchanger pressure loss and the
water volume flow p = f (V)
15 sections
8,10 sections
12 sections