Additive Effects on Soot Formation in Diffusion Flames

研究了一系列添加剂对C H/O/N扩散火焰中碳烟生成的影响。研究的添加剂包括：P(OCH3)3、POBr3、Sb(OCH3)3、SbBr3、CH3Br4、MoBr4和(NH4)6M07024。添加剂的效果将通过在燃料或空气中不添加和不添加添加剂的情况下进行测量来确定：使用细丝热电偶测量火焰温度分布；使用选定带宽摄影测量C2*、CH*和烟尘颗粒发射的位置和强度；使用朗缪尔探头测量正离子总浓度；使用紫外光吸收测量OH浓度；还将根据OH旋转线比率测量温度；以及使用两种波长激光消光技术测量总碳烟浓度。

Research is conducted to determine the effects of a series of additives on soot formation in C H /O /N diffusion flame. The additives to be studied include: P(OCH3)3, POBr3, Sb(OCH3)3, SbBr3, CH3Br, MoBr4, and (NH4) 6M07024. The effects of the additives are to be determined by measureing without and with additives added to fuel or air flow: flame temperature profiles using fine wire thermocouples; the location and intensity of emission from C2*, CH*, and soot particles using selected bandwidth photography; total positive ion concentrations using langmuir probes; OH concentrations using UV light absorption; temperatures will also be measured from OH rotational line ratios; and total soot concentrations using two wavelength laser extinction techniques.