熱滲耦合作用下地埋管傳熱的模擬與實(shí)驗(yàn)研究.pdf

1、南京師范大學(xué)碩士學(xué)位論文熱滲耦合作用下地埋管傳熱的模擬與實(shí)驗(yàn)研究姓名：毛炳文申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：土木工程；供熱、供燃?xì)?、通風(fēng)與空調(diào)工程指導(dǎo)教師：余躍進(jìn)20120506AbstractInrecentyears，groundsourceheatpumpasanenergysaving，environmentalprotectiontechnologyhasbeenwidelystudiedanappliedThekeystoneofs

2、tudyfocusonhowtoimprovetheheattransferperformanceofgroundsourceheatpumpgroundheatexchangerinordertoimprovetheoperationefficiencyofgroundsourceheatpumpandbeRerrealizethepurposeofenergysavingandemissionreductionInthisDaper

3、weconsiderthegroundwaterseepageinthesoilTheGAMBITwasusedtoestablishthephysicalmodelofsoilwithandwithoutgroundwaterseepageTheANSYS130wasusedtOcalculationthemodelIntheconditionofwithoutseepage，thispaperanalyzedtheheattrans

4、ferperformanceofgroundheatexchangeratdifferentflowvelocitywithintubesandobtainedthegroundtemperaturefieldthermalinfluencingradiusTheresultsshowthattheheattransferisenhancedofgroundheatexchangerwiththeincreaseofflowveloci

5、tywithintubesContinuingtoincreasetheflowvelocitywithintubeshaslittleeffectofenhancingtheheattransferwhenthevelocityis09m／sIntheconditionofwithseepage，thispaperanalyzedtheeffectofdifferentvelocityofseepageandsoilporosityo

6、ntheheattransferperformanceTheresultsshowthatseepagedeforms也egroundtemperaturefieldandenhancestheheattransferTheheattransferperformancewasincreasedbyO83％and883％whenthevelocityofgroundwaterseepagewerel10—7州sand310一m／sTheh

7、eattransferrateofgroundheatexchangerincreaseswiththeincreasinginsoilporosityInordertochecktheaccuracyofthecoupledthermalconductionandgroundwateradvectionmodel，thispaperbuiltamodelexperimenttablebasedonthetheoryofsimilari

8、tyTestswerecarriedoutongroundheatexchangerwithandwithoutgroundwaterseepageinsummerTheresultsofexperimentareinagoodaccordancewiththesimulationresultsthusverifytheheattransferlawdescribedbytheanalyticalsolutionofthecoupled