CAJ | 학술논문

为了进一步研究生物柴油和碳酸二甲酯（DMC）在柴油中的调配比例对柴油机性能的影响，在体积比90％的柴油中分别掺混10％生物柴油、10％DMC及5％生物柴油与5％DMC的混合物，连同柴油组成B10，D10，B5D5和柴油4种燃料，考察了不同含氧燃料对柴油机燃烧过程、经济性和排放性的影响。结果表明，3种含氧燃料对柴油机缸内最高燃烧压力和压力升高率峰值影响不大，B10的放热峰值略有降低，而DMC的加入使B5D5和D10的放热峰值明显升高。DMC造成的着火延迟效应要比同比例生物柴油造成的着火提前效应更明显。B10和D10的当量燃油消耗率与柴油基本相当，但B5D5的当量燃油消耗率略有降低。发动机燃用B10时，除NOx在全负荷时升高7．9％外，CO，HC和炭烟排放相对有所降低；而混合燃料中DMC的引入虽不利于HC和CO的氧化，但可同时降低烟度和NOx排放。
위료진일보연구생물시유화탄산이갑지（DMC）재시유중적조배비례대시유궤성능적영향，재체적비90％적시유중분별참혼10％생물시유、10％DMC급5％생물시유여5％DMC적혼합물，련동시유조성B10，D10，B5D5화시유4충연료，고찰료불동함양연료대시유궤연소과정、경제성화배방성적영향。결과표명，3충함양연료대시유궤항내최고연소압력화압력승고솔봉치영향불대，B10적방열봉치략유강저，이DMC적가입사B5D5화D10적방열봉치명현승고。DMC조성적착화연지효응요비동비례생물시유조성적착화제전효응경명현。B10화D10적당량연유소모솔여시유기본상당，단B5D5적당량연유소모솔략유강저。발동궤연용B10시，제NOx재전부하시승고7．9％외，CO，HC화탄연배방상대유소강저；이혼합연료중DMC적인입수불리우HC화CO적양화，단가동시강저연도화NOx배방。
To further research the influence of biodiesel and DMC mixing ratio on diesel engine performance ,90% diesel blen-ded fuels mixed with 10% biodiesel ,10% DMC ,5% biodiesel and 5% DMC were prepared respectively and formed B10 ,D10 , B5D5 and diesel four test fuels together with pure diesel .The effects of different oxygenated fuels on combustion process ,e-conomy and emission were investigated .The results show that the three oxygenated fuels have little influnce on maximum in-cylinder pressure and pressure rise rate .The maximum heat release rate of B10 slightly decreases ,while that of B5D5 and D10 increase significantly due to the addition of DMC .The ignition delay caused by DMC is more obvious than the ignition advance caused by the same amount of biodiesel .B10 and D10 have the same equivalent brake specific fuel consumption as diesel ,but that of B5D5 slightly decreases .When fueled with B10 ,CO ,HC and soot emssion all decrease except 7 .9% increase of NO x at full load .Though the introduction of DMC to mixed fuels is bad for the oxidation of HC and CO ,it can reduce the smoke and NO x emissions simultaneously .