Study of Gasoline Vehicles and Hybrid Electric Vehicles Performance Using Alternative Fuels

• Main Authors: Chun-Bin Huang, 黃春濱
• Other Authors: Xiao-Kang Ma
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/70668325284601751263

碩士 === 國立臺灣大學 === 機械工程學研究所 === 94 === In attempt to cope with the global problem of energy crisis and greenhouse gas effect, this study utilizes Fortran 95 and Engine Performance Analysis Software to set up Zero-Dimension Heat Release Model. For engine performance of Toyota Camry 2.0, we change the combustion parameters(Ex: Ignition Angle、Duration of Combustion、Equivalence Ratio, etc) and alternative fuels(methanol、gasoline、methane) to develop the optimum operating condition for maximum engine thermal efficiency and the indicated mean effective pressure. By input data--burn duration is 400, Weibe efficiency factor is 5, Weibe form factor is 3, intake temperature is 300K, intake pressure is 300kPa, cylinder temperature is 400K, phi is 0.8, engine speed is 5600rpm, therefore the simulation analysis results show that Camry 2.0 has the maximum engine thermal efficiency and the indicated mean effective pressure for phi is 0.8 when ignition angle is 150 btdc, burn duration is 350, Weibe efficiency factor is 5, Weibe form factor is 1 for using methanol、gasoline and ignition angle is 150 btdc, burn duration is 350, Weibe efficiency factor is 6, Weibe form factor is 1 for using methane. In addition, the study also compares the fuel economy、power output and pollutant emission for Hybrid Prius 1.5 and Gasoline Vehicle Camry 2.0. When two cars drive under different operation conditions, for fuel economy, (1)Prius 1.5 saves 5445 dollars per 10,000km than Camry 2.0 when two cars drive 30% in city and 70% on highway. (2)Prius 1.5 saves 9372 dollars per 10,000 km than Camry 2.0 when two cars drive 70% in city and 30% on highway. For emission pollution, the CO emissions of Camry 2.0 is almost 2.53 times and 4.09 times as Prius 1.5, the NMHC emissions of Camry 2.0 is 3.18 times and 5.11 times higher than Prius 1.5, and the NOx emissions of Camry 2.0 is 5.05 times and 12.70 times as Prius 1.5 when two cars drive 30% in city and 70% on highway or drive 70% in city and 30% on highway. For power output, Due to Prius 1.5 drives by dual power source(gasoline engine and electricity), battery can offer electricity to motor when power is insufficient; in addition, motor can transform surplus kinetic energy into electricity energy to store in the battery. Prius 1.5 can compare favorably with general Gasoline Vehicle Camry 2.0 in the whole performace.