CAJ | 학술논문

考察了乙醇体积分数对乙醇汽油馏程及饱和蒸汽压的影响,对乙醇汽油的蒸发性进行了研究.乙醇体积分数低于15%的乙醇汽油,其馏出温度普遍降低、饱和蒸汽压升高,表明乙醇汽油具有良好的蒸发性,使发动机的启动性、加速性和稳定性等均优于普通汽油.但乙醇汽油良好的蒸发性也会导致汽油蒸发排放对环境造成污染,增加了供油系统产生气阻的可能性.10%乙醇汽油的蒸发性适中,对汽油蒸发排放及气阻的影响不大.
고찰료을순체적분수대을순기유류정급포화증기압적영향,대을순기유적증발성진행료연구.을순체적분수저우15%적을순기유,기류출온도보편강저、포화증기압승고,표명을순기유구유량호적증발성,사발동궤적계동성、가속성화은정성등균우우보통기유.단을순기유량호적증발성야회도치기유증발배방대배경조성오염,증가료공유계통산생기조적가능성.10%을순기유적증발성괄중,대기유증발배방급기조적영향불대.
In order to study the evaporation of ethanol-gasoline,experimental investigation had been carried out on distillation range and saturated steam pressure with different ethanol content.When the volume fraction of ethanol was less than 15%,the distillation temperature of ethanol-gasoline would decrease generally,and its saturated steam pressure would increase.Result showed that ethanol-gasoline had a favorable evaporability. The starting,acceleration and stability of engine with ethanol-gasoline were superior to those with regular gasoline.But its favorable evaporability would lead to the environmental pollution from evaporative emission of gasoline and increase the oil supply system to cause vapor lock or possibility. Due to the evaporation of 10% ethanol-gasoline was moderate,the evaporative emission of gasoline and vapor lock would not create a big impact.