Experimental Studies of Deposition by Electrostatic Charge on Turbine Blades

R. Raj, S. Moskowitz
1984 Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations   unpublished
Experimental tests were conducted to determine the electrical charge related deposition on turbine blades in a:hot gas stream. Transpiration air cooled, water cooled, and-uncooled turbine specimens were tested. The results indicate that the gas stream charge is proportional to fluid particle velocity and particle concentration. The ionic concentration of the gas increases with incre$se in gas temperature in the range•of 1000°F.(537 C) to 2200°F (1200°C). The deposition was found to be less-for
more » ... he transpiration air cooled test sampleat 1300°F (704°C) metal temperature and She excessively water cooled test sample at 350°F (176 C) than for the uncooled test samples. There is some evidence to indicate that by using electrostatic means, a reduction in deposition on turbine blades operating on a contaminated stream resulting -from coal firing, may be possible.
doi:10.1115/84-gt-159 fatcat:5iu4m4l2w5dndppuvmheyoe6ra