What's in diesel exhaust, and how does it impact diesel performance? William Partridge and other engineers at the Oak Ridge National Laboratory in cooperation with Cummins Diesel and BWXT-Y12 have developed a monitor to analyze the exhaust of an operating diesel. Called the SpaciMS, the monitor measures total oxides of nitrogen, oxygen, carbon dioxide and hydrocarbon fragments in undiluted exhaust by transporting an exhaust sample through silica capillaries to a miniature mass spectrometer. Better engine development and reducing emissions are some of the projects of ORNL's National Transportation Research Center.
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