Burning residual oil in utility combustion turbines and the consequent deposition on blades and vanes may adversely affect reliability and operation. Corrosion and deposition data for combustion turbine materials have been obtained through dynamic testing in pressurized passages. The deposition produced by the 1900°F (1038°C) combustion gases from a simulated and a real residual oil on cooled Udimet 500 surfaces is described. Higher deposition rates for the doped fuel than for the real residual oil raised questions of whether true simulation with this approach can be achieved. Particles 4–8 μm in diameter predominated in the gas stream, with some fraction in the 0.1–12 μm range. Deposition rates seemed to be influenced by thermophoretic delivery of small molten particles, tentatively identified as magnesium pyro and metavanadates and free vanadium pentoxide, which may act to bond the larger solid particles arriving by inertial impaction to turbine surfaces. Estimated maintenance intervals for current utility turbines operating with washed and treated residual oil agreed well with field experience.
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January 1983
This article was originally published in
Journal of Engineering for Power
Research Papers
Combustion Turbine Deposition Observations From Residual and Simulated Residual Oil Studies
G. A. Whitlow,
G. A. Whitlow
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
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S. Y. Lee,
S. Y. Lee
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
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P. R. Mulik,
P. R. Mulik
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
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R. A. Wenglarz,
R. A. Wenglarz
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
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T. P. Sherlock,
T. P. Sherlock
Westinghouse Combustion Turbine Systems, Concordville, Pa.
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A. Cohn
A. Cohn
Electric Power Research Institute, Palo Alto, Calif.
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G. A. Whitlow
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
S. Y. Lee
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
P. R. Mulik
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
R. A. Wenglarz
Westinghouse Research and Development Center, Pittsburgh, Pa. 15235
T. P. Sherlock
Westinghouse Combustion Turbine Systems, Concordville, Pa.
A. Cohn
Electric Power Research Institute, Palo Alto, Calif.
J. Eng. Power. Jan 1983, 105(1): 88-96 (9 pages)
Published Online: January 1, 1983
Article history
Received:
December 7, 1981
Online:
September 28, 2009
Citation
Whitlow, G. A., Lee, S. Y., Mulik, P. R., Wenglarz, R. A., Sherlock, T. P., and Cohn, A. (January 1, 1983). "Combustion Turbine Deposition Observations From Residual and Simulated Residual Oil Studies." ASME. J. Eng. Power. January 1983; 105(1): 88–96. https://doi.org/10.1115/1.3227403
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