CAJ | 학술논문

　　旋流燃烧火焰中温度及烟黑颗粒浓度分布对于旋流燃烧机理及燃烧器设计具有重要意义，提出了一种新的离散重建模型，用于旋流火焰内温度及烟黑颗粒浓度的三维联合重建。该模型以CCD为测量传感器，通过构建辐射逆问题求解方程，从CCD输出的辐射投影图像重建温度分布。通过数值模拟讨论了测量噪声、烟黑颗粒浓度对重建精度的影响，结果表明即使在有噪声的情况下，该模型也能获得准确的测量结果。文中实验测量了450 kg/h重油旋流火焰内温度及烟黑颗粒体积浓度分布，温度测量结果与热电偶的差异在50℃以内。
　　선류연소화염중온도급연흑과립농도분포대우선류연소궤리급연소기설계구유중요의의，제출료일충신적리산중건모형，용우선류화염내온도급연흑과립농도적삼유연합중건。해모형이CCD위측량전감기，통과구건복사역문제구해방정，종CCD수출적복사투영도상중건온도분포。통과수치모의토론료측량조성、연흑과립농도대중건정도적영향，결과표명즉사재유조성적정황하，해모형야능획득준학적측량결과。문중실험측량료450 kg/h중유선류화염내온도급연흑과립체적농도분포，온도측량결과여열전우적차이재50℃이내。
The distribution of temperature and soot volume fraction for swirling flame is very important for turbulent mechanism research and swirl burner design. Based on flame radiation inversion analysis, this paper proposed a 3-D temperature and soot volume fraction reconstruction model by using the CCD flame image detector. The performance of the proposed method was examined by a numerical simulation. The effects of noise and radiative properties on the reconstruction accuracy were discussed. The temperature and soot volume fraction for 450kg/h heavy oil fueled flame were measured. The results show that the proposed method was capable of reproducing the temperature and soot volume fraction for flame, even with noisy data. The difference of the temperature measurement with thermocouple was less than 50 ℃.