添加輪胎裂解油對柴油引擎噴油時序與排放氣體之影響

• Main Authors: Wen-Her Lin, 林文河
• Other Authors: Chun-Pao Kuo
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/62051455410404645236

博士 === 國立中正大學 === 機械工程學系暨研究所 === 100 === 　　In this research, the fuel of droplet atomization model from fuel injection angle θa to θb of a single cylinder diesel engine is established based on fuel injection amount and injection angel from crank angle θa to θd. First, waste tires are placed in the pyrolysis furnace where its air temperature is kept under 350°C . Gas generated from waste tires after pyrolysis is then condensed into pyrolysis oil, which is then blended with consumer grade diesel oil (D100) in two different ratios. The blended oil is called the biofuel T10 and T20. Next, dynamometer experiment is performed in diesel engines on actual vehicles with biofuel to establish the fuel of droplet atomization model. After spontaneous combustion angle occurs, establish the fuel of droplet atomization combustion model. 　　Calculate the temperature in combustion chamber based on theory; derive pressure on piston and torque on crank shaft from equations and also calculate theoretical indicate horsepower according to rpm. Compare the results with four cylinder engine in dynamometer experiment, it is clear that changing the initial injection angle θa would effectively lower the concentration of pollutants NOx and HC. In conclusion, changing the timing sequence of θa would increase the storage of oil that helps adding pyrolysis oil, and in the end, would increase the output horsepower.