Gas ramp dimensioning for gas burners
dreizler A 3001 E - 18.12.2015 | A 2047 - 1.14 | EN - 07.07.2014
100
NOTICE:
The dimensioning of biogas and liquid gas burners is done accordingly, whereby here a head pressure of
P
K
30mbar in the capacity range up to 1.2MW is required. The same approach as in natural gas burners
applies.
Example: M 1001 ARZ
Selected: DN 50
P
E
= 50mbar
P
Combustion chamber
= 4.3mbar
Q
B
= 1300kW
= 130m
3
/h natural gas
P
K
= 18mbar
DN 40
P
Gas ramp
= 22mbar, V = 28m/s
DN 50
P
Gas ramp
= 11mbar, V = 18m/s
Because of V
= 18m/s
P
Emin
= 4.3mbar = 33.3mbar
P
E
is therefore sufficient at
= 50mbar
Threshold
P
Gas ramp
by V
max
= 30m/s flow speed in the pipe
P
Emin
= P
K
+
P
Gas ramp
P
Emin
= min. required supply pressure at gas ramp (flow pressure)
P
K
= Head pressure in burner, required for burner end capacity
P
Gas ramp
= Pressure loss at gas ramp
