华中科技大学学报：自然科学版2012，Vol.40Issue(6)：113-116,4.
不同含量乙醇汽油泡点／露点曲线模拟及应用
Simulations and applications of bubble/dew curve for different ethanol-gasoline blends
摘要
Abstract
An ethanol-gasoline model based on discrete fuel assumption was established to analyze the influence of ethanol proportion on flash boiling. Bubble/dew curves of different fuels were calculated by Aspen Plus using Peng-Robinson method and phase equilibrium. Flash boiling of GDI （gasoline direct injection） fueled with El0 was predicted. Results showed that bubble pressure decrease while the ethanol proportion increase. And low ethanol proportion may border two-phase region, while P-T curve became narrow at high proportion. Also bubble point curve can effectively predict the flash boiling sprays.关键词
直喷汽油机/乙醇汽油/闪急沸腾/气液平衡/数值模拟Key words
gasoline direct injection engine/ethanol-gasoline blends/flash boiling/Vapour-liquidequilibrium/numerical simulation分类
能源科技引用本文复制引用
丁红元,黄荣华,王兆文,李智..不同含量乙醇汽油泡点／露点曲线模拟及应用[J].华中科技大学学报：自然科学版,2012,40(6):113-116,4.基金项目
高等学校博士学科点专项科研基金资助项目（20100142120047）. （）
