新型航空燃料臨界性質(zhì)測(cè)定與估算.pdf

1、匠兩l⑧#目mR镕一m★天洋大尊TIANJlNUNVERSITY碩士學(xué)位論文學(xué)科專業(yè)：絲蘭王莖作者姓名：型!盍擅指導(dǎo)教師：苤擔(dān)盎塾撞天津大學(xué)研究生院2006年1月ABSTRACTCfiticfltemperaturesandpressuresoffuelsareimportantparametersfurratingofmeritwhichdefinethephasebehaviors，performanceandtemperature

2、rangeoffuelsappliedintheairplanesandhypersonicaircraftsInadditiontheyareveryusefulintheinvestigationofthethermaldegradationoraggregationandcarbondepositundersubsupereriticalconditionsoffuelsItisgenerallydifficulttomeasur

3、ethecriticaldataoffuelsduetOitscomplexcompositionunstablefeaturesandhighercriticalvaluesInthisthesis，variousexperimentalmethodsandtheorytodeterminecriticalpropertiesofsubstancewereintroducedOnelowresidencetimeflowequipme

4、ntforthemeagurememofthecriticaltemperaturesandpressuresofthermalunstablefluidsWagdesignedItimprovedtheorgmalmethodsandenlargedtherangeoftemperaturesandpressuresmeagurezl_，witllthetestedtemperatureas0500。Candtest[exlpress

5、ure雒05MP&Npentane、nhexane、cyclohexaneandn—decanewereused嬲standardreagentstocheekthereliabilityoftheapparatusThemaximumdeviationoftemperatureandpressuresare028。CandO006MParespectivelyTheseresultsfullyprovethattheapparatus

6、isreliabletodeterminethecriticaldataofthermalunstableflmdsThecriticaltemperaturesandpressuresoftwoendothermichydrocarbonfuelsRP3andsimulateJP7，onehigllenergyfuelsJP10andmixturesofJPlOwi也methyleyclohexane(MC聊weredetermine

7、dforthefirsttimeInadditionthecriticaldataofendothermieaviationfuelsofRP3andsimulateJP7wereestimatedusing6methodsThetemperaturedeviationWaglessthan6630C，andthepressuredeviationsamongestimatedmethodshoweverCallbeasmuch硒O82

8、8MPaThemaxilnunlrelativeerToroftemperaturesandpressureswere167％and384％，respectivelyTheAPImethods，andRiaziandDanbertcorrelationarerelativelyreliableAnewmethodtodeterminethecriticaldatausinghighpressuredifferentialscanning

9、calorimetryWagproposed，whichCaninferredthecriticaltemperaturesandpressuresfromvariousDSCcurvesunderdifferencesmeasuringpressureThecriticaldataofnpentaneandJP10wereobtainedfromthismethod，theresultswere19760Cand337MPa4238。