CAJ | 학술논문

为了研究生物柴油-乙醇-柴油混合燃料的燃烧特性，使用AVL-FIRE软件对纯柴油和B30E10（含30%体积分数的生物柴油，10%体积分数的乙醇和60%体积分数柴油的生物柴油-乙醇-柴油混合燃料）的缸内燃烧和喷雾过程进行模拟分析，将燃烧室进行切片，比较了两种燃料的速度场、压力场和温度场变化及变化规律。研究结果表明：在燃烧初期，B30E10燃烧比柴油慢，随着燃烧的进行，当燃油堆积于燃烧室凹槽后，B30E10在缸内的燃烧速度、压力和缸内温度均比柴油低。
위료연구생물시유-을순-시유혼합연료적연소특성，사용AVL-FIRE연건대순시유화B30E10（함30%체적분수적생물시유，10%체적분수적을순화60%체적분수시유적생물시유-을순-시유혼합연료）적항내연소화분무과정진행모의분석，장연소실진행절편，비교료량충연료적속도장、압력장화온도장변화급변화규률。연구결과표명：재연소초기，B30E10연소비시유만，수착연소적진행，당연유퇴적우연소실요조후，B30E10재항내적연소속도、압력화항내온도균비시유저。
In order to study combustion characteristics of biodiesel-ethanol-diesel blended fuel,the in-cylinder combustion and spray processes of pure diesel and B30E10 fuel(containing 30% volume fraction of biodiesel,10% volume fraction of etha-nol and 60% volume fraction of diesel) were simulated and analyzed by using the AVL-FIRE software. By slicing the combus-tor,the velocity field,pressure field and temperature field,and their change law were compared. The simulation results show that the burn speed of B30E10 is slower than diesel in early combustion stage,but with the development of combustion process and when the fuel is accumulated in the groove of the combustion chamber,the in-cylinder combustion speed,pressure and tem-perature of B30E10 fuel are lower than diesel.