ABB HT563800 Operation Manual page 65

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Maintenance
Turbine cleaning during operation
Recommended operating state for turbine wet cleaning
The following operating state has been tested and is approved by ABB
Turbo Systems:
Characteristic / component
Engine load (guide value)
Turbine inlet temperature
T before water injection
TE
Water supply
Water pressure
(overpressure over
atmosphere) p
WT
If necessary, engine performance must be reduced to maintain these
conditions.
The cleaning cycle can now be started based on the following description.
Operation Manual / TPS44-F.. - TPS61-F..
5
5.3
Conditions
short
water injection time
20 ... 40 %
350 ... 400 °C
ensured
2.0 bar
Page 63
long
water injection time
350 ... 430 °C
1.5 bar