提高無機相變貯能材料壽命的研究.pdf

1、河北工業(yè)大學(xué)碩士學(xué)位論文提高無機相變貯能材料壽命的研究姓名：劉樂申請學(xué)位級別：碩士專業(yè)：化學(xué)工藝指導(dǎo)教師：任寶山20050301堡壘耋!I墊鏨些墼型：些童壘塑些2lSTUDYoFIMPRoVEMENTTHEAGEoFINoRGANICPHASECHANGEMATERIALSoNENEGYSToRAGEABSTRACTWiththeeverincreasingenergyneedshowtoeffectiveandrationalutil

2、izationenergysource，havealreadybecomeaproblempeoplestringencyconcernedInthecourseofphasetransformationbecausephasechangematerials(PCMs)havegotagreetdealofenergystorageandreleasesaveenergyandapproveactualeffectofutilizati

3、onPCMswillbewidelyappliedinthesavingenergyfieldincludingthebuilding，solarenergyexhaustheat，exhaustcool，andSOOnTheCOnductivefactorofinorganicsolidliquidPCMsiSgreatbutalSOthekindofPCMshasmanyspecialityaSlittletoxicitynopec

4、uliarsmellandcheapButthesupercoolingandliquidseparatedfromthesalthydrate，whichlimitsits’progressanduse，and，becomes“bottleneckproblem”ofitsuseThisarticlestudymainlythetwokindofinorganicsolidliquidPCMsGlauber’Ssaltandcalci

5、umchloridehexahydrate，discussandanalysehowtoimprovetheproblemofitsageSearchforthemeanswhichaccountforthe“bottleneckproblem”，andenhanceitsusing，extenditsageThroughappendingthenucleatingagent，suspendagent，addingdenseagent，

6、dispersant，etcthestudysolvethesupercoolingandliquidseparatedfromthesalthydratemattersAndthroughmanytimesmelting—freezingcycleexperiment，thestudydeterminecrystaltemperature，super—coolingdegreeanddisintegrationrateofthesys

7、temThenonbasisofexperimentalresearch，thebetteradditivethatisfilteredout，advancetheageofPCMsTheexperimentusesthenewmeasurecalculatingtheageofPCMsnamelycalculatetheage’SdisintegrationrateofPCMs111ismeansscaletheageofPCMsth

8、roughcalculatingthevarietyrelativelyofenthalpyofphaSechangeItmakesupthemeasureerrorofDSCThiserrorisduetothesamplewhichischosenfromthePCMs，isnotfromthesameplaceeverytimeThestudyfindthebestqualityscaleoftheadditives，thenus

9、ethissystemtoexperimentanddataextrapolatewithGM(11)FinallytheageofthisimprovingsystemisforecastedTheageofGlauber’Ssaltsystemis700times；theageofcalciumchloridehexahydratesystemis800timesOnbasisoftheexperimentalresearch，th