Proceedings
of the Fortieth Turbomachinery Symposium,
September 12-15, 2011, Houston, Texas
Long
Term Operating Experience with Corrosion Control in Industrial Axial Flow
Compressors
David Linden, President
D.H.Linden Associates, Inc., Allentown, PA, USA
ABSTRACT
A
primary cause of flow path failures in industrial axial flow compressors is
related to corrosion damage. Various corrosion mitigations have been employed
by manufacturers and users. Authors summarize several long term monitoring and
assessment programs designed to evaluate the effectiveness of the mitigation steps. They then make recommendations for future
operation.
The monitoring programs included detailed metallurgical analyses of
corroded stator and rotor blades, material captured in inlet filter pads, flow
path deposits and corrosion coupons. The hardware was examined at various run
time intervals that ranged between 2 to 12 years. When possible, corrosion
damage was mapped and quantified. The hardware was then returned to service and
later re-evaluated in the exact same locations after the additional operating
time.
Free Full Text Source: http://turbolab.tamu.edu/uploads/tproc/PDFs/LongTermOPeratingExperience.pdf
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