SBIR Phase I: Monitoring and Characterization of Fine Particulates from Combustion Sources

这个小企业创新研究第一阶段项目探讨了使用创新的椭圆偏振光散射方法原位表征燃烧产物细颗粒物的潜力。粒径、粒径分布和形态是控制吸入空气传播颗粒物的关键因素。Synergetic Technologies，Inc.可以通过基于精细颗粒的偏振设置定制的独特方法来确定这些参数。与目前的在线颗粒测量技术不同，纤维和不规则形状颗粒（如颗粒团聚体）的结构可以以合理的精度确定。辨别这种形状的能力将对源和环境监测工作的可靠性产生很大影响。本研究将评估使用该系统监测小型发动机微粒排放的可行性。 建议进行基础研究，仔细检查仪器的准确性（将结果与电子显微镜照片进行比较），用于一系列发动机测试条件。第一阶段将侧重于评估系统的能力和准确性。 在第二阶段，将设计和建造一个原型系统，用于在纽约州环境保护部实验室测量机动车废气。

This Small Business Innovation Research Phase I project examines the potential for in situ characterization of fine particulate matter of combustion products using an innovative elliptically polarized light scattering method. Particle size, size distribution, and morphology are key factors that control the inhalation of air borne particulates. Synergetic Technologies, Inc. can determine these parameters via a unique approach based on customization of polarization settings for fine particulates. Unlike current on-line particle measuring techniques, structures of fibers and irregular shaped particles (such as particle agglomerates) can be determined with reasonable accuracy. The ability to discern such shapes will have a great impact on reliability of source and ambient monitoring efforts. This investigation will assess the feasibility of using the system to monitor particulate exhaust from small engines. Fundamental research is proposed to closely examine the accuracy of the instrument (comparing results with electron micrographs) for a range of engine test conditions. Phase I will focus on evaluating system capability and accuracy. In Phase II, a prototype system will be designed and constructed for measuring motor vehicle exhaust at the New York State Department of Environmental Conservation laboratories.