MRI: Development of Fiber-Optically Coupled Combustion and Flow Sensor for IC Engines and Other Severe Environments

号提案 CTS-0421505主要研究者： P. V. Puzinauskas，亚拉巴马塔斯卡卢萨大学。该基金将用于开发基于光纤的内燃机和其他工业机械燃烧和流体动力学诊断技术。 激光诱导击穿光谱（LIBS）和激光诱导白炽（LII）将被纳入一个强大的光纤探头，允许在现场测量的物种浓度和颗粒负载。这种诊断组合有望提供对缸内和排气过程后颗粒形成的洞察。 核心挑战将是促进充分的激光传输和信号光提取环境恶劣，动态和几何限制的环境。 考虑到这一目标，内燃机是一个自然的概念验证平台，尽管最终产品将应用于开发各种工业机器，如燃气涡轮发动机，固定式工业燃烧器，燃料电池和其他平台。 来自亚拉巴马大学（UA）机械工程和应用力学与航空航天系的研究人员将负责光纤配置和发动机应用，并将开发荧光探针，而来自加州大学圣地亚哥分校（UCSD）的研究人员将开发LIBS和LII诊断。 光谱硬件和软件将是一个合作的努力，系统规划和分析（SPA），公司。将提供光纤选择、设计和商业化方面的专业知识。这项研究计划将有显着的直接利益，在UCSD和UA的学生，以及在SPA的调查人员，谁经常雇用学生实习生从马里兰州的大学。 该项目将资助几名研究生和一名博士后研究员。 研究结果将被纳入工程和科学课程，并在广泛阅读的同行审查期刊上传播。 由此产生的光学传感器将提供显着的改善，在恶劣环境中的气相组成的测量，这将在教育和研究开辟新的途径。 特别是，所提出的仪器预计将显着影响IC发动机的计算流体力学模型的验证和新的超稀燃和均质充量压燃（HCCI）发动机的发展。

Proposal No. CTS-0421505Principal Investigator: P. V. Puzinauskas, Univ. of Alabama TuscaloosaThis grant is to develop fiber-optic-based diagnostics for combustion and fluid dynamics in internal-combustion engines and other industrial machinery. Laser-induced breakdown spectroscopy (LIBS) and laser-induced incandescence (LII) will be incorporated in a robust fiber-optic probe to allow in situ measurements of species concentrations and particle loading. This combination of diagnostics is expected to provide insight into in-cylinder and post-exhaust-process particulate formation. The central challenge will be to facilitate adequate laser light delivery and signal-light extraction from environmentally harsh, dynamic, and geometrically restricted environments. With this goal in mind, the internal-combustion engine is a natural proof-of-concept platform, although the final product will have application to development of a variety of industrial machines such as gas-turbine engines, stationary industrial burners, fuel cells, and other platforms. Investigators from The University of Alabama (UA) Mechanical Engineering and Applied Mechanics and Aerospace departments will be responsible for fiber-optic configuration and engine applications, and will develop the fluorescence probes, while investigators from the University of California at San Diego (UCSD) will develop the LIBS and LII diagnostics. The spectroscopic hardware and software will be a collaborative effort, and Systems Planning and Analysis (SPA), Inc. will provide expertise in fiber selection and design and commercialization. This research program will have significant direct benefits to the students at UCSD and UA, as well as investigators at SPA, who often employ student interns from the University of Maryland. The project will support several graduate students and a post-doctoral researcher. Results will be incorporated into the engineering and science curriculum, and disseminated in widely-read peer-examined journals. The resulting optical sensor will provide significant improvement in the instrumentation available for measurements of gas phase composition in harsh environments, which will open new avenues in both education and research. In particular, the proposed instrument is expected to significantly impact the validation of computational fluid mechanics models of IC engines and the development of new ultra-lean burn and homogenous charge compression ignition (HCCI) engines.