CH4 제트화염의 NOx 배출 특성에 관한 수치 및 실험적 연구

초록

Experimental and numerical investigation on NOx emission characteristics with equivalence ratio, fuel flow rates and nozzle diameters were studied in CH4 jet flames. Emission indices of ONx were measured by chemiluminescent method with corbon conveter. Numerical analyses were carried out with GRI-2.11 mechanism that includes C2-chemistry and all of NO reaction mechanisms. The roles of thermal NO and prompt NO mechanism on each flame's NOx emission index were investigated. The results of this study show that the numerical results represent well the trends of EINOx experimentally observed. The numerical analyses clarified the trends of EINOx with equivalence ratios, fule flow rates and nozzle diameters.