CAJ | 학술논문

利用发动机尾气余热对低浓度乙醇进行催化重整，生成一种富含H2、CO等可燃性气体的发动机替代燃料。由于重整反应过程中，温度、流量、乙醇浓度等因素会对重整产物的组分造成影响，使燃料的理论空燃比发生变化，设计了一种低浓度乙醇重整燃料发动机空燃比控制系统，对发动机的空燃比进行实时调节，并在低浓度乙醇重整燃料发动机上进行试验。试验结果表明，空燃比控制系统基本达到了设计的预期效果，降低了发动机的排气温度，提高了发动机的燃料利用率。
이용발동궤미기여열대저농도을순진행최화중정，생성일충부함H2、CO등가연성기체적발동궤체대연료。유우중정반응과정중，온도、류량、을순농도등인소회대중정산물적조분조성영향，사연료적이론공연비발생변화，설계료일충저농도을순중정연료발동궤공연비공제계통，대발동궤적공연비진행실시조절，병재저농도을순중정연료발동궤상진행시험。시험결과표명，공연비공제계통기본체도료설계적예기효과，강저료발동궤적배기온도，제고료발동궤적연료이용솔。
Use engine exhaust heat on low concentration ethanol catalytic reforming to produce an engine alternative fuels containing flammable gas such as H2 , CO. Because temperature ,flow rate ,the ethanol concentration and other factors will affect the components of the reformate in the process of reforming reaction to change fuels ’ theoretical air-fu-el ratio ,We design an Air-fuel ratio Control system of Low concentration alcohol reforming engine to make a real -time adjustment of the engine’ s air-fuel ratio and we experiment with Low concentration alcohol reforming engine. The re-sult of the experiment demonstrates that this Air -fuel ratio Control system achieves the desired effect ,reduces the tem-perature of the engine exhaust gas and improves the fuel efficiency of the engine .