Abstract
The purpose of this study is to design a LHV (Low Heating Value) fuel combustor and apply it in a 10KW gas turbine engine for power generation. The source of LHV fuel is produced from gasifi cation in oxygen-defi cient combustion of waste plastic; its heating value is about 6.7 MJ/m3. Composition, adiabatic fl ame temperature, flammable range, burning rate of this fuel are analyzed in this paper. In combustor design, turbine air jet flow initiated recirculation flow structure is adopted to strengthen mixing and flame holding eff ect. The fuel is supplied through axial vortex to enhance local mixing of fuel and air. The current design is evaluatedaccording to previous experience and one-dimensional flow-fi eld characteristic. The detailed flow structure was obtained from numeric simulation analysis of 3D isothermal flow-fi eld. The preliminary conclusion is that better air / fuel mixing effect can be achieved by adopting configuration of co-swirlers recirculation flow.
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