车用发动机
車用髮動機
차용발동궤
2013年
6期
62-67,74
,共7页
毛功平%王忠%吴婧%李志越
毛功平%王忠%吳婧%李誌越
모공평%왕충%오청%리지월
生物柴油%排放%高压共轨%柴油机%分担率
生物柴油%排放%高壓共軌%柴油機%分擔率
생물시유%배방%고압공궤%시유궤%분담솔
biodiesel%emission%high-pressure common rail%diesel engine%contribution rate
开展了共轨柴油机燃用柴油、餐饮废油制生物柴油及其混合燃料的试验,采用ESC稳态排放测试,对比分析了添加比例为0%,5%,10%的调合生物柴油(B0,B5,B10)对柴油机性能和排放特性的影响规律。结果表明:与原机相比,燃用B5,B10后,柴油机功率平均降幅分别为3.1%,5.3%,扭矩平均降幅分别为1.5%,2.3%;燃油消耗率平均增幅分别为1.1%,1.6%,而能量消耗率平均降幅分别为3.5%,6.8%;CO,HC和PM 比排放量、加权比排放量和加权平均比排放量均逐渐减少,NOx 则逐渐增加,CO ,HC和PM的加权平均比排放量的最大降幅分别为9.1%,9.7%和7.4%,NOx 最大增幅为4.9%;CO ,PM ,NOx 排放分担率在高负荷工况较大,HC分担率在低负荷较大,燃用调合生物柴油时排放污染物的分担率分布较原机平均。
開展瞭共軌柴油機燃用柴油、餐飲廢油製生物柴油及其混閤燃料的試驗,採用ESC穩態排放測試,對比分析瞭添加比例為0%,5%,10%的調閤生物柴油(B0,B5,B10)對柴油機性能和排放特性的影響規律。結果錶明:與原機相比,燃用B5,B10後,柴油機功率平均降幅分彆為3.1%,5.3%,扭矩平均降幅分彆為1.5%,2.3%;燃油消耗率平均增幅分彆為1.1%,1.6%,而能量消耗率平均降幅分彆為3.5%,6.8%;CO,HC和PM 比排放量、加權比排放量和加權平均比排放量均逐漸減少,NOx 則逐漸增加,CO ,HC和PM的加權平均比排放量的最大降幅分彆為9.1%,9.7%和7.4%,NOx 最大增幅為4.9%;CO ,PM ,NOx 排放分擔率在高負荷工況較大,HC分擔率在低負荷較大,燃用調閤生物柴油時排放汙染物的分擔率分佈較原機平均。
개전료공궤시유궤연용시유、찬음폐유제생물시유급기혼합연료적시험,채용ESC은태배방측시,대비분석료첨가비례위0%,5%,10%적조합생물시유(B0,B5,B10)대시유궤성능화배방특성적영향규률。결과표명:여원궤상비,연용B5,B10후,시유궤공솔평균강폭분별위3.1%,5.3%,뉴구평균강폭분별위1.5%,2.3%;연유소모솔평균증폭분별위1.1%,1.6%,이능량소모솔평균강폭분별위3.5%,6.8%;CO,HC화PM 비배방량、가권비배방량화가권평균비배방량균축점감소,NOx 칙축점증가,CO ,HC화PM적가권평균비배방량적최대강폭분별위9.1%,9.7%화7.4%,NOx 최대증폭위4.9%;CO ,PM ,NOx 배방분담솔재고부하공황교대,HC분담솔재저부하교대,연용조합생물시유시배방오염물적분담솔분포교원궤평균。
The experiments of common rail diesel engine fueled with diesel ,waste cooking oil biodiesel and their blended fuel were carried out ,the power and emission performance of diesel mixed with 0% ,5% and 10% biodiesel (referred to as B0 ,B5 and B10) was compared and analyzed with ESC driving cycle .The results show that the engine power and torque decreases re-spectively by 3 .1% ,1 .5% for B5 and by 5 .3% ,2 .3% for B10 .The brake specific fuel consumption of B5 and B10 increases by 1 .1% and 1 .6% and the energy consumption decreases by 3 .5% and 6 .8% respectively .The brake specific emissions (BSE) ,weighted BSE and weighted average BSE of CO ,HC and PM decrease ,but the trend is opposite to NOx .The largest reduction of weighted average BSE for CO ,HC and PM are 9 .1% ,9 .7% and 7 .4% and the largest increase for NO x is 4 .9% . The contribution rate of CO ,PM and NOx are great at high loads and that of HC is high at low loads .Compared with the origi-nal engine ,the contribution rates between pollutants for biodiesel engine become more average .