CAJ | 학술논문

使用热场发射扫描电子显微镜拍摄了5种生物柴油和0号柴油在常温常压状态下燃烧产生的碳烟照片,分析了碳烟粒子的形貌及影响形貌和生成量的因素.研究表明,碳烟粒子多呈球状,平均直径在35～75nm之间,粒径分布符合高斯分布,总体排列量现链状或者块状;碳烟形貌及生成量与火焰温度、燃料的氧含量、芳香烃含量、硫含量以及十六烷值等因素有关,与柴油相比,生物柴油燃烧火焰温度高、含氧量高、芳香烃和硫含量少,十六烷值高,使生物柴油的碳烟粒径普遍较小,整体排列更紧密,粘结程度更强.
사용열장발사소묘전자현미경박섭료5충생물시유화0호시유재상온상압상태하연소산생적탄연조편,분석료탄연입자적형모급영향형모화생성량적인소.연구표명,탄연입자다정구상,평균직경재35～75nm지간,립경분포부합고사분포,총체배렬량현련상혹자괴상;탄연형모급생성량여화염온도、연료적양함량、방향경함량、류함량이급십륙완치등인소유관,여시유상비,생물시유연소화염온도고、함양량고、방향경화류함량소,십륙완치고,사생물시유적탄연립경보편교소,정체배렬경긴밀,점결정도경강.
This paper is intended to study and analyze bio-diesel-burning soot in terms of factors affecting its particles morphology and amount of soot generation based on the pictures taken from burning bio-diesel oils and common diesel No.0 by using the field emission scanning electron microscope. Results found that the soot particles, most of which were in globular shape, ranged averagely between 35 to 75 nm in diameter with the size distribution according to Gaussian distribution. The soot morphology and formation amount were associated to several parameters such as flame temperature, contents of O_2,aromatic hydrocarbon and sulfur in the oils and the eetane number of the oil itself. Compared with the common diesel No.0, the bio-diesel oil generated the soot particles, which, being in smaller sizes tended to more closely and tightly bind together.