Emission and fuel consumption of motorcycle running with hydrogen rich reformed gas

• Main Authors: Yu-Cheng Jiang, 姜禹丞
• Other Authors: Jau-Huai Lu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/50374923475907424397

碩士 === 國立中興大學 === 機械工程學系所 === 102 === In this study, 2-stroke and 4-stroke motorcycle engine and with on- board steam reformer were used as a test stand to investigate the effect of adding hydrogen mixture on the fuel consumption and exhaust pollution. Addition of reformed gas may have two effects on engine efficiency. One is the enhancement of combustion due to the high speed of flame propagation characteristics of hydrogen, and the other is attributed to the recovery of exhaust thermal energy to improve the fuel heating value. In driving cycle test when hydrogen mixture was added , the CO emission was decreased over 80% when Equivalence ratio=1, but not useful when Equivalence ratio>1. The HC emission could be decreas 20~40% according to driving velocity. The NOx emission was increased 10~40% depend on throttle opening.The best fuel consumption increased 13% compare with only using gasoline is 32.8 km/L when the reform gas flow was 4.37L/min , compare with only using gasoline increased 13%. It was found in experiment that 2-stroke motocycle`s opacity and particulate matter can be improved by adding hydrogen mixture especially on larger sized particulate matter.