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1、安徽农业科学,JournalofAnhuiAgri.Sci.2007,35(36):11948-11950责任编辑孙红忠责任校对李洪甲醇/柴油混合燃料的应用研究121楚宜民,袁增春,单士睿(1.许昌职业技术学院机电工程系,河南许昌461000;2.河南省南阳油田技术监测中心,河南南阳473001)摘要[目的]为柴油机掺烧甲醇技术的应用提供依据。[方法]在柴油机结构不变的情况下,把甲醇、柴油、OP乳化剂按体积比15∶80∶2.5混合,采取新的乳化工艺研制混合燃料,并与柴油作比较。[结果]甲醇-柴油混合燃料的密度和
2、粘度较柴油降低,粘度为1.20°E20,雾化质量和蒸发性能得到提高。“微爆效应”对柴油机的负荷特性有影响,使热效率提高。随着负荷的增大,柴油机燃用混合燃料的耗油率低于燃用柴油的油耗率,经济性有所提高。甲醇-柴油混合燃料平均节油率达9.5%,在中、高负荷下节油率平均达12.4%。在中、高负荷范围内燃用混合燃料的烟度均低于燃用柴油时的,下降达25.6%,NOx的排放值显著降低。[结论]柴油机燃用甲醇-柴油混合燃料热效率有所提高,中、高负荷时耗油率显著下降,经济性好,减少了环境污染,具有良好的经济和社会效益。关键词柴
3、油机;甲醇;混合燃料;乳化工艺中图分类号S232.6文献标识码A文章编号0517-6611(2007)36-11948-03ResearchontheApplicationofMixedFuelofMethanolandDieselCHUYi2minetal(DepartmentofMechanicalandElectricalEngineering,XuchangVocationalCollege,Xuchang,Henan461000)Abstract[Objective]Theaimwastoprovid
4、ebasisforapplyingtechnologyofmix2burningmethanolindieselengine.[Method]Undertheconditionofinvariablestructureofdieselengine,methanol,dieselandOPemulsificationreagentweremixedaccordingtovolumeratioof15∶80∶2.5.Themixedfuelwaspreparedbynewemulsificationtechnolo
5、gyandcomparedwithdiesel.[Result]Thedensityandviscidityofmethanol2dieselmixedfuelwerelowerthanthatofdiesel,thevisciditywas1.20°E20,andatomizationqualityandevaporationcapabilitywereenhanced.“Microexplosioneffect”hadinfluenceontheburthencharacteristicofdieselen
6、gine,andenhancedthermalefficiency.Alongwiththeincrementofburthen,thefuelconsumptionrateofburningmixedfuelwaslowerthanthatofburningdieselindieselengine,theeconomywassomeenhanced.Theaveragefuelsavingrateofmethanol2dieselmixedfuelreached9.5%,thefuelsavingratere
7、ached12.4%averagelyundermediumandhighburthen.Intherangeofmediumandhighburthen,allthesmokeintensityofburningmixedfuelwaslowerthanthatofburningdiesel,andthedecrementreached25.6%,andthelettingvalueofNOxreducedsig2nificantly.[Conclusion]Thethermalefficiencyofbur
8、ningmethanol2dieselmixedfuelindieselenginewassomeincreased,thefuelconsumptionratede2creasedsignificantlyundermediumandhighburthenwithgoodeconomy,reducedenvironmentalpollutionandhadgoodeconomican
