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Progress on Comparison Study of the Erosion of Conventionally Machined and Macrolaminated Pressure-Swirl Atomizers FREE

[+] Author Affiliations
Rex J. Harvey

Parker Hannifin Corporation, Cleveland, OH

Paper No. 97-GT-460, pp. V002T06A059; 8 pages
doi:10.1115/97-GT-460
From:
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7869-9
  • Copyright © 1997 by ASME

abstract

Gas turbine fuel atomization nozzles are subject to internal erosion damage caused by the flow of the liquid fuel and its inevitable contaminants. Nozzles must be sufficiently erosion resistant, or erosion tolerant, to insure acceptable performance throughout their design life. Recently developed macrolamination (ML) technology for construction of pressure-swirl nozzles shows potential performance, cost, and size benefits when compared to conventionally constructed nozzles. The objective of this study is to compare macrolaminated and conventional nozzles under identical accelerated erosive conditions to determine their relative wear characteristics. To date, twelve nozzles have been compared with some being disregarded because of anomalies. It is shown that erosion damage results in increased flow rates. Also, the tendencies shown are for conventional nozzles to erode to narrower spray angles and macrolaminated nozzles to erode to wider spray angles. ML nozzles exhibit some important failure modes that differ from nozzles of conventional design.

Copyright © 1997 by ASME
Topics: Pressure , Erosion
This article is only available in the PDF format.

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