ABB Power2 850-M16 - Page 66

Operation Manual / Power2 800-M / 4 Product description
6
Periodic maintenance
Page 34 /
59
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HZTL4061_EN
Revision A
September 2016
Calculation of the gas pulse
The pulse I
G
for the flow of gas is calculated according to the following relationship:
p
G
is the density of the exhaust gas at the inlet into the gas inlet casing.
V
G
corresponds to the flow rate at the nozzle ring inlet.
A
NR
corresponds to the surface of the flow channel at the nozzle ring inlet. The values are
specified in the following table.
Power2
Surface of the flow channel at the nozzle
ring inlet of the HP turbine stage
[m
2
]
Surface of the flow channel at the nozzle ring
inlet of the LP turbine stage
[m
2
]
850 0.031 0.068
Table 14: Surface of the flow channel