高壓天然氣管網(wǎng)干線輸氣系統(tǒng)的優(yōu)化.pdf

1、同濟大學碩士學位論文高壓天然氣管網(wǎng)干線輸氣系統(tǒng)的優(yōu)化姓名：阮應君申請學位級別：碩士專業(yè)：供熱、供燃氣空調指導教師：周偉國任建興2002.12.10月濟^攀q【士攀t話支AbstractWiththestartupofWest—EastNaturalGasTransmissionProject，theconstructionofalongdistancegaspipelinewillcomeintoanewerainChinaAnewdi

2、rectionofgaspipelinedevelopmentwiilbelarge～diameter，high—pressureandlong—distanceGas—networksgetlargerandlargerandmoreandmorecomplicatedGas—networksdesigntakesintoaccountnotonlyGas—networksadvancedtechnology，butalseasona

3、blecostTheconstructionofmain—linesystemingasnetworksisusuallylargescaleandenormouscapitalinvestmentThecostofapipelinemayadduptoseveralbillion，evenseveraltenbillionTheinvestmentsofa11kindsofplots，whicharereasonableintechn

4、ology，havethelargedifferenceTherefore，basedonthecharacteristicsofgasnetworkstheuseofoptimizationmethodsbecomequiteindispensabletogasnetworksdesign。Tationallydesignthegaspipelineisagreatheapteducethecost，improvemanagement

5、andincreaseeconomicbenefitConsideringallkindsoffactors(diameter，thickness，pressure，length，compressorstationsetc)thatinfluencethetotalcostofgaspipeIine，thispaperestablishedacomprehensiveandreasonableoptimaldesignmathemati

6、cmodelofgaspipelineTheaimofthemodelisTotalPresentValuebyconvertingonallkindsofpipelinecostsInviewofthecharacteristicsofmodelthatincludescontinuousvariables(pressure，length，temperatureetc)anddiscretevariables(diameter。thi

7、ckness。compressorstationsetc)，onthebasisoftraditionalmethods，anewmethodMixedDiscreteOftimizationisraisedItisprovedthatthemethodproposedinthispaperisaneffectivemethodtosolvenonlinearconstrainedoptimizationofcontinuousandd

8、iscretevariablesbywayofapplicationBasedontheabovetheories。anapplicableHighpressurePipelineProgramiscompiledTwokindsofcomputerlanguages(FortranandVisualBasic)areadoptedintheprogramFurthermore，theportbetweenVisualBasicandF

9、ortranbyDLL(DynamicLinkLibrary)isaccomplishedwhichmaketheprogramnotonlyhavegoodWindowsuserinterfacebutmakeuseofFortrancharacteristicsofframaworkclarityandstrongfunctionsofnumericalcomputationandmathematicsanalysisInaddit

10、ion，consideringtheeffectofhighpressureandtemperatureinhighpressurepipelinetothegascompressibilityfactor。avisualandsimpleofGasCompressibilityFactorProgramisdevelopedTheprogramisanassistantprogramofHigh—pressurePipelinePro

11、gram，alsobeindividualanapplicableprogramforgascompressibilityfactorcalculatingFinallyHi靜pressurePipelineProgramisappliedtoapracticalprojectandtheeffectsofdesignparametersonthetotalcostofgaspipelineareanalyzedKeywords：Hig