Engineering Research Equipment Grant: Laser - Diagnostic Equipment for Combustion Kinetic Studies Over Wide Temperature Ranges

为了研究300-1900K温度范围内铬物种的氧化、还原和氧化物-卤化物分配动力学，需要一台倍频准分子染料激光器和一台用于测量荧光强度的瞬时数字化仪器。其中涉及几个独特的实验设备。其中最主要的是利用激光诱导荧光监测铬自由基的高温快流反应器。此外，还将使用金属高温光化学反应器，该反应堆的开发始于之前的NSF计划。该装置允许检查流动反应器的结果，并将10-2到10-1巴的压力范围扩展到1巴。将利用带有质谱计检测的第二个流动反应器来帮助识别反应产物。拟议的研究对于了解铬物种反应在垃圾焚烧中危险排放的形成中的作用是必要的。此外，该设备还将用于其他几个燃烧项目。

An excimer-dye laser, with frequency doubling, and a transient digitizer for fluorescence intensity measurements are requested, to be used for studies of chromium species oxidation, reduction and oxide-halide partitioning kinetics in the 300-1900 K temperature range. Several unique experimental facilities are involved. The principal one is a high temperature fast-flow reactor with laser-induced fluorescence monitoring of the Cr radicals. Additionally, the metals high- temperature photochemistry reactors, development of which began under a previous NSF program, will be employed. This apparatus allows a check on the flow reactor results and an extension of the 10-2 to 10-1 bar pressure range to 1 bar. A second flow reactor with mass spectrometer detection will be utilized to help identify the reaction products. The proposed research is needed for understanding the role of Cr species reactions in the formation of hazardous emissions in waste incineration. Additionally, the equipment will be utilized on several other combustion projects.