preliminary experimental investigation on a multi-stage cryogenic heat pipe heat exchanger论文

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1、ShanghaiJiaoTongUniversity&NorwegianUniversityofScienceandTechnologyPreliminaryexperimentalinvestigationonamulti‐stagecryogenicheatpipeheatexchangerJakobMannst1ofDecember2014万方数据万方数据AbstractNaturalgasisaversatileenergyresource.Thedemandfornaturalgasisconstantlyrisingandnewsourcesfornaturalgasarene

2、eded.Someofthesesourcescanbeveryremoteandconventionalproductionmethodscannotbeapplied.Smallremotenaturalgasreservoirsmightholdvaluableresourcesbuttheconstructionofapipelinefromthesereservoirsisnotfeasible.Inthesecasessmallscaleliquefactionplantscanhelptotransformthegasintoaliquidandthusopenupnewwa

3、ysofstoring,transportingandusingtheresource.Thesesmallscaleliquefactionplantshavetoconsidertheinvestmentcost,efficiencyandrunningcostsofaproject.Heatpipesareclosedsystemsthatcanachievehighheattransferratesfromoneendoftheheatpipetotheother.Thesepropertiescanbeusedinaheatexchangertocreateacompacthea

4、texchangerdesign.Suchheatexchangershavealreadybeenusedforexampleinwasteheatrecoveryfromfactoryexhaust.Inthisworktheapplicationofaheatpipeheatexchangerfortheuseinanaturalgasliquefactionheatexchangerisinvestigated.AnoverviewoverthenaturalgasmarketinChinaisgiventohighlighttherollthatliquefiednaturalg

5、aswillplayinChina’sfuture.Conventionalnaturalgasliquefactionmethodsareexplainedandtheequipmentcommonlyusedinthesemethodsislisted.Anexplanationoftheheatpipeisgivenandthelimitationsduringtheoperationofsuchasystemareexplained.Finallytheexperimentalsetupthatwasconstructedisexplainedandtheexperimentalp

6、roceduresarehighlighted.Theresultsoftheexperimentswiththeheatpipesarepresentedwithaconclusion.Inadditionsomethoughtsonfurtherworkinthisfieldofresearcharepresented.1万方数据ContentsAbstract..................................................................................................................

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