CAREER: Applications of Reformer Gas to Improve Cold Start Performance of A Homogeneous Charge Spark Ignition Engine

这项工作探讨了在冷启动条件下，通过使用重整气体延长发动机稀释极限的可行性，并在实验上表征了重整气体与代表汽油的大碳数烃燃料在压力、温度和当量比范围内的化学相互作用。 调查包括确定火焰速度与数字粒子成像测速仪（DPIV）使用逆流燃烧器，氧化散射和平面激光诱导荧光（PLIF）使用活塞反应器的表征。 通过发动机实验来确定使用重整气对冷启动碳氢化合物排放的影响。根据教育计划，研究成果将纳入课程开发。 该计划还包括在大学预科水平的推广工作，包括科学项目咨询，课堂参观，动手实验室会议和实验室演示。

This effort explores the feasibility of extending the dilution limit of an engine during cold-start conditions by using reformer gas and characterizes experimentally the chemical interactions of reformer gas with large-carbon-number hydrocarbon fuels representative of gasoline over a range of pressures, temperatures, and equivalence ratios. The investigation includes determination of flame speed with digital particle-imaging velocitmetry (DPIV) using a counterflow burner, and characterization of oxidation scattering, and planar laser-induced fluorescence (PLIF) using a piston reactor. Engine experiments are conducted to determine the effect from the use of reformer gas on cold-start hydrocarbon emissions.Under the education plan, research findings are integrated into course development. The program also includes outreach efforts at the precollege level including science project advising, classroom visits, hands on laboratory sessions, and laboratory demonstrations.