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

这个小型企业创新研究第一阶段项目考察了使用创新的椭圆偏振光散射方法对燃烧产品中的细颗粒物进行原位表征的可能性。颗粒物的大小、分布和形态是控制空气中颗粒物吸入的关键因素。Synergetic Technologies，Inc.可以通过一种独特的方法来确定这些参数，该方法基于对细颗粒的偏振设置的定制。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)的结构可以以合理的精度确定。辨别这些形状的能力将对来源和环境监测工作的可靠性产生重大影响。这项调查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，以密切检查该仪器在一系列发动机测试条件下的准确性(与电子显微镜的结果进行比较)。第一阶段将侧重于评估系统的能力和准确性。在第二阶段，将在纽约州环境保护部实验室设计和建造一个用于测量机动车尾气的原型系统。

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.