液态二氧化碳管路输送相变特性分析

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1、关键词：管路输送；压力响应；温度变化；相态变化；增压特性研究类型：应用研究temperature.(4)ThepressureresponseandphasechangeinliquidCO2continuoustransportationwerestudied.TheresultsshowthatthepressuredropiseasytocauseCO2gasification,andtheabruptchangeofpressurecanleadtodryiceformationinthetube.Constantpressuretransportcaneffectiv

2、elypreventtheformationofdryiceduetopressuredrop.IntheearlystageofconveyingliquidCO2,thefirststagepressureincreasesrapidly,thetemperaturedropsrapidly,andthecorrespondingphasestateprocesschangesfromthegasificationprocesstothegas-liquidtwo-phasetransportprocess.Inthesecondstage,thepressureandte

3、mperaturechangesmoothly,andthecorrespondingphasetransitionprocessischangedfromthegas-liquidtwo-phasedynamicprocesstothesuperheatedliquidtransportprocess.Intheinitialstageofinjection,thesuperchargingisaffectedbythetransientflow,andtheaverageflowsizehasnodirecteffectonit.(5)Withtheincreaseofpi

4、petemperature,themaximumpressureincreaseinthepipeandtheaveragepressureincreaseratealsoincrease.Theincreaseininjectionvolumecausestheincreaseinpressureinthepipelinetotakelonger.Themaximumpressureincreaseslinearlywiththeincreaseofinjectionvolume.Keywords:Pipelinetransport;Pressureresponse;temp

5、eraturevariation;Phasetransition;SuperchargingperformanceThesis:ApplicationResearch目录目录1绪论................................................................................................................................11.1选题背景及研究意义.............................................................

6、............................11.2相关领域的研究现状.........................................................................................21.2.1CCS简介...................................................................................................21.2.2CO2管道的发展......................................

7、..................................................31.2.3CO2输送方式............................................................................................31.2.4CO2管道输送技术研究............................................................................