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STUDY ON THE EMISSION CHARACTERISTICS OF LNG BUSES BASED ON PEMS
Author(s): 
Pages: 151-154
Year: Issue:  11
Journal: Environmental Engineering

Keyword:  LNGPEMSemissionsemission characteristics;
Abstract: LNG vehicles effectively alleviate the energy shortage and environmental pollution,thus becoming one of the fastest developing vehicles. In this paper,the LNG vehicles emissions are tested based on PEMS. The CO and NOxemission of LNG vehicle have strong correlation with the vehicle speed,but HC of LNG vehicle has poor correlation with the vehicle speed.Similarly,the CO and NOxemission characteristics acceleration have strong regularity,while HC emission characteristic of acceleration has weak regularity. Three kinds of vehicles emissions are analyzed and compared. Compared to conventional diesel and hybrid vehicles,HC emissions of LNG vehicles significantly are larger; and CO emission of LNG vehicles is less than conventional diesel vehicles; NOxemissions of three kinds of vehicles are similar.
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