...Jack G. Gaskell; Matthew McGilvray; David R. H. Gillespie; John Irving Particle deposition is a major damage mechanism for gas turbine components, especially in the secondary air system. Predicting the transport and deposition of ingested atmospheric contaminants is of great interest in component...

... characteristics, airborne contaminants, and environmental conditions determines fouling prediction challenges. An experimental campaign has been carried out in the present analysis to study the overtime modification of compressor performance and mass deposits on the blade and vane surfaces. The axial unit has...

... of particle retention as a function of a reduced set of independent variables relating to both the carrier gas flow and particle. Two-dimensional CFD simulations of particle deposition are performed on the General Electric E 3 nozzle guide vane using the existing, energy-based fouling of gas turbines (EBFOG...

...Weiguo Ai; Nathan Murray; Thomas H. Fletcher; Spencer Harding; Scott Lewis; Jeffrey P. Bons Deposition on film-cooled turbine components was studied in an accelerated test facility. The accelerated deposition facility seeds a natural-gas burning combustor with finely ground coal ash particulate...

...Scott Lewis; Brett Barker; Jeffrey P. Bons; Weiguo Ai; Thomas H. Fletcher Experiments were conducted to determine the impact of synfuel deposits on film cooling effectiveness and heat transfer. Scaled up models were made of synfuel deposits formed on film-cooled turbine blade coupons exposed...

...James E. Wammack; Jared Crosby; Daniel Fletcher; Jeffrey P. Bons; Thomas H. Fletcher Turbine blade coupons with three different surface treatments were exposed to deposition conditions in an accelerated deposition facility. The facility simulates the flow conditions at the inlet to a first stage...

...Jeffrey P. Bons; James E. Wammack; Jared Crosby; Daniel Fletcher; Thomas H. Fletcher A thermal barrier coating (TBC)-coated turbine blade coupon was exposed to successive deposition in an accelerated deposition facility simulating flow conditions at the inlet to a first stage high pressure turbine...