引汽燃燒對(duì)柴油機(jī)性能的影響.pdf

1、同濟(jì)大學(xué)碩士學(xué)位論文引汽燃燒對(duì)柴油機(jī)性能的影響姓名：潘鐵駒申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：動(dòng)力機(jī)械及工程指導(dǎo)教師：金永亮2002.1.1AbstractAsamainsoureeofpower，dieselenginehasbeenpenetratinganumberofmarketsaroundtheworldAndtheefficiencyofdieselenginesmakesthemanincreasinglyalternativeto

2、conventionalspark—ignitionenginesHowevertheemissionofnitrogenoxideandparticulatematterfromdieselenginesremainsallenvironmentalconcernTomeetthefutureemissionstandards，NOxandPMemissionofdieselengineswillhavetobereducedsign

3、ificantlyVaporaddedcombustionisoneofefficienttechniquesteducethemInthisthesis，AexperimenthavebeenmadetostudytheeffectofwatervaporonemissionsandperformanceofDIdieselengineThewatervaporwasproducedbyaheatexchangerusingexhau

4、stheatAuthorinthepapertoanalyzetheprocessesoftheNOxformationindieselcombustion，proposedarevisedtwozonecombustionmodelThein—cylindergasisdividedtwozones，thisis，aburnedgaszoneandunburnedgaszoneThegasineachzoneisuniformandi

5、tsstatechangesindependentlyandadiabaticallywiththesamepressureeachotherThedetailedeffectofwatervaporwasanalyzedbythetwo—zonecombustionmodeltheoreticallyandtheresultsshowthat(1)Compared講mfuelwithoutwaterthereisaslightlowe

6、rpeakofpremixedheatreleaseinfuelwithintakewatervaporandthecombustiontemperaturewasdecreased(2)FuelconsumptionisslightlowerinintakewatervaporcasetheninnowatervaporcaseOntheotherhandtheHCandC0concentrationincreasedKeyword：