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Measurements of the Dimensionless Extinction Constants for Diesel and Biodiesel Soot

机译:柴油和生物柴油烟灰的无量纲消光常数的测量

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The values of the dimensionless extinction constant, K_e, for soot produced from various practical fuels reported are important in quantifying the optical measurements of soot concentration, temperature measurements and soot radiation analysis. The measurements of K_e for soot produced from F-76 and B-100 methyl soyate (soy methyl ester) biodiesel fuels were performed using a unique transmission cell reciprocal nephelometer (TCRN). Light transmission measurements were performed using a 632.8 nm He-Ne laser. In this technique, K_e was determined from simultaneous measurements of soot concentration using a gravimetric technique, which were compared with the light extinction measurements. The measured value of K_e for both F-76 and B- 50 soot at 632.8 nm is 10.2, These experiments represent the first measurements of dimensionless extinction constant of soot produced from diesel and biodiesel diffusion flames.
机译:从各种实用燃料产生的烟灰的无量纲消光常数K_e的值对于量化烟灰浓度,温度测量和烟灰辐射分析的光学测量非常重要。使用独特的传输细胞互易孔仪(TCRN)进行由F-76和B-100甲基大酸盐(大豆甲酯)生物柴油燃料进行的烟灰的测量。使用632.8nm HE-NE激光进行透光测量。在该技术中,使用重量技术从同时测量烟灰浓度的同时测量,与光消光测量进行比较。对于632.8nm的F-76和B-50烟灰的K_e的测量值是10.2,这些实验代表了由柴油和生物柴油扩散火焰产生的烟灰无量纲消光常数的第一测量。

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