An Assessment of Erosion in PFBC Power Plant Turbines

Using a turbine erosion damage model and data from PFBC (pressurized fluidized bed combustion) pilot plant/cascade experiments, combustion turbine blade erosion rates and maintenance intervals for blade replacements are projected for a PFBC power plant system. The power plant includes a 10 atmosphere PFBC boiler with a matching 10:1 pressure ratio turbine and a gas cleanup system to remove particulates from combustor product gases before entering the turbine. Effects on turbine erosion of three alternative particle cleanup systems are evaluated. Blade replacement intervals due to erosion are found for the alternative gas cleanup systems.Copyright © 1982 by ASME