Unigas HTP512A, Installation, User'S, And Maintenance Manual

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C.I.B. UNIGAS - M039219CA
5
See the diagram in Fig. 2, as to find the burners that better suite the power range requested in the exmple (9600kW). Once the models
are founded out, the choice regards technical and economical features. Technical features can be summarised in a higher modulation
ratio (fewer start-ups, less consumption, fewer swigings in the generator temperature and pressure values.
Checking the proper gas train size
To check the proper gas train size, it is necessary to the available gas pressure value upstream the burner’s gas valve. Then subtract
the backpressure. The result is called
p
gas.
Draw a vertical line matching the furnace input value (600kW, in the example), quoted on
the x-axis, as far as intercepitng the network pressure curve, according to the installed gas train (DN65, in the example). From the inter-
ception point, draw an horizontal line as far as matching, on the y-axis, the value of pressure necessary to get the requested furnace
input. This value must be lower or equal to the
p
gas
value, calculated before.
Data requested:
z
furnace input;
z
air temperature
z
altitude
Example:
z
furnace input: 9600kW
z
air temperature: 15°C
z
altitude: 0m
Fig. 1
Fig. 2
TP1030
TP1050
TP91A
TP90A
TP92A
TP93A
TP512A
TP515A
TP520A
TP525A
0 2000 4000 6000 8000 10000 12000 14000 16000
Power output diagram at 15àC air temperature
Burner performance range
Tipo / Type P60
M-...50 (Multibloc DUNGS MB-DLE 420 B01)
M-...65 (Filtro / Filter DN65+ SIEMENS VGD40.065 +SKP1x+SKP2x)
0
5
10
15
20
25
100 200 300 400 500 600 700 800 900
Potenza / Output (kW)
M
ini
ma pr
essi
one gas i
n
re
te
/ Min
imu
m in
le
t g
as
pr
essur
e (
m
bar
)
Rp 2" (50)
DN65