Operation Manual / 4 Product description / A100-M axial
6 Periodic maintenance / 6.5 Cleaning turbine and nozzle ring
© Copyright 2020 ABB. All rights reserved.
HZTL4033_EN
Rev.E
May 2020
Procedure with automated cleaning
The following operating state and the following prerequisites have been tested and ap-
proved by ABB Turbocharging for cleaning operations:
u
Set the engine load as follows:
¡
Turbine mass flow M
Turb
≈
4.1 kg/s
¡
Turbine pressure ratio PIT
≈
1.1
¡
Turbine inlet temperature between 380 … 430 °C
Fig. 25: Cleaning cycle of turbine and nozzle ring with load ramp
u
As soon as the turbine inlet temperature is stable and less than 430 °C, wait for least 10
additional minutes for the turbine-end turbocharger components to cool down.
u
Start the cleaning cycle according to the following description Wet cleaning procedure.
u
Continuously increase the engine load during washing:
¡
Turbine mass flow M
Turb
≈
6.5 kg/s
¡
Turbine pressure ratio PIT = 1.6 … 2.0
¡
Turbine inlet temperature <430 °C
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