Assessment of particulate matter in exhaust gas for biodiesel and diesel under conventional and low temperature combustion in a compression ignition engine
作者： Yongjin Jung , Joonsik Hwang , Choongsik Bae
DOI: 10.1016/J.FUEL.2015.10.076
关键词:
摘要: Abstract Particulate matter (PM) from the exhaust gas of a single-cylinder direct-injection compression-ignition engine was investigated by thermogravimetric analysis (TGA), elemental analysis, and transmission electron microscopy (TEM). Two fuels were used: biodiesel derived waste cooking oil commercial diesel fuel. Exhaust recirculation applied to implement low temperature combustion (LTC), PM emissions LTC compared those conventional compression ignition combustion. TGA showed that significant mass reduction occurred at range 200–420 °C for in mode due desorption volatile organic fraction; shows highest resistance within entire range. Elemental revealed weight fractions hydrogen oxygen content, which volatiles are comprised, much larger than mode. The exposed surface area after group may result fast oxidation PM. contains large portion carbon species, contrast content could be carbonaceous soot particles, because TEM images appeared highly ordered structure. Using scanning mobility particle sizer, fewer particles found accumulation with operation mode, is consistent observed level smoke emission.
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