The results of numerical simulations of particle sticking behavior near the throat of a low-NOx axial-swirl burner in a 600-MWe bituminous coal burned boiler are presented. A comparison of simulation results with measurements using a probe with hot-film sensors shows that the numerical model...

Due to the high carbon and ash content of coal gasification fine ash (CGFA) produced by circulating fluidised bed gasifiers (CFBG), it is mainly dissipated in landfills and energy wastage. Large-scale dissipation of CGFA can be achieved if the carbon in CGFA has active oxidation properties and...

Measurements were taken for a 600-MWe wall-fired pulverized-coal utility boiler that was retrofitted with centrally fuel rich swirl coal combustion burners and two levels of OFA (over-fire air) technology. Using various swirl air vane angle settings a three-component particle-dynamics anemometer...

A new overfire air (OFA) technology was proposed by the authors for a Foster Wheeler down-fired boiler, and a small-scale cold experimental system for a 660-MWe unit was established. The velocity field distribution was measured in the furnace to study the characteristics of single-phase flow in...

Within a gas/particle two-phase testing facility, multi-level concentrators were investigated by obtaining gas/particle two-phase characteristics of each concentrator within a centrally fuel-rich swirl burner. Measurements of velocities, particle volume flux profiles and relative particle number...