SBIR Phase II: Control and Optimization of Combustion Based on Multispectral Emission Tomography

小型企业创新研究（SBIR）第二阶段项目研究了一种直接测量主动控制所需的关键燃烧流场信息的新方法，以提高燃烧效率并减少有害排放。 燃烧控制系统可以基于使用无源光学探针的非侵入式原位测量，所述无源光学探针测量来自热流场中的特定分子产物（H2O、CO和CO2）的光谱分辨辐射。 浓度和温度可以直接从观察到的光谱结构确定。该提案的关键创新是使用光谱传感器技术和断层重建技术实验确定函数关系。流场表征是通过在多条视线上对流动进行大量测量来实现的。拟议的第二阶段研究为一系列多燃烧器燃烧室（包括涡轮机发动机、锅炉和工艺燃烧器）的主动控制系统奠定了科学基础。 这些应用占全球化石能源使用量的50%以上，因此效率的提高可以产生重大的经济和社会影响。所提出的创新只是开发主动控制系统所需的组件技术之一，但它是一个使能组件，具有在所有工业燃烧市场中的潜在应用

The Small Business Innovation Research (SBIR) Phase II project investigates a novel approach for directly measuring critical combustion flow-field information required for active control to increase combustion efficiency and reduce harmful emissions. Combustion control systems can be based on non-intrusive in-situ measurement using passive optical probes that measure spectrally-resolved radiation from specific molecular products (H2O, CO, and CO2) in the hot flow field. Concentrations and temperatures can be directly determined from the observed spectral structure. The critical innovation in this proposal is the experimental determination of the functional relationship using spectral sensor technology and tomographic reconstruction techniques. Flow field characterization is achieved using a large number of measurements over multiple lines of sight through the flow. The proposed Phase II research lays the scientific ground work for active control systems for a range of multi-burner combustors, including turbine engines, boilers, and process burners. These applications represent more than 50% of the global fossil energy usage; thus improvements in efficiency can have a major economic and societal impact. The proposed innovation is just one of the component technologies required for the development of active control systems, but it is an enabling component, with potential application in all industrial combustion markets