地下商场冰蓄冷低温送风气流组织模拟分析

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1、西南交通大学硕士学位论文地下商场冰蓄冷低温送风气流组织模拟分析姓名：俞健申请学位级别：硕士专业：供热、供燃气、通风及空调工程指导教师：许志浩20070601西南交通大学硕士研究生学位论文第

2、I页AbstractAlongwiththenationaleconomyunceasingdevelopmentandthepopulationsharpgrowth，thebuildingisextendingtotheundergroundspaceandthesky，makingmuchmoreuseof

3、theundergroundspace．Especiallyfortherecentyears,moreandmorecountrysbeginconstructingtheundergroundconstruction．Thescalebecomesmoreandmorebigandtheapplicationscopeismoreandmorebroad．Forexample，thesubsurfacestorage，theundergroundmarket，theundergroundpark

4、，theundergroundhospitalandSOon．Thedomesticundergroundmarketandtheundergroundbusinessstreetisalsodevelopingveryquickly．Ithasbecametheimportantconstituentofthemajorandmediumcitybusinessnet．Theelectricityloadoftheairconditioningontheseplacesisincreasingra

5、pidlytoexertthehugepressureonthecityelectricalnetwork．Specially，theelectricityusingatpeakandvalleytimehasmadetheimbalancedphenomenontobemoreprominent．Underthisbackground，theicestoragethatcaneffectivelybalancethepeakandvalleybeginstodevelopinourcountryg

6、radually．Becausetheinvestmentexpensesofthepureicestorageprojectismuchmorethantheconventionalair—conditioningproject，SOtheicestorageprojectusedwithcoldairdistributiontechnologyenablestheinvestmentexpensestoreducegreatly，evenpossiblylowerthantheconventio

7、nalairconditioningproject．Atpresent，twomainreasonsrestrictingthecoldairdistributiontechnologytodevelopinourcountryisshownasfollow：(1)Theairmassofcoldairdistributionislittel，soitmaycreateindoorairqualitytobelow；(2)thetemperatureofcoldairdistributionislo

8、w，SOitwouldmakepersonsintheroomhavethecoldwindblowfeeling．ForVAVsystems，thevalue70％isusuallyusedfortheminmumairrateinprojectdesigns．Buttheresearchfortheundergroundmarketsisstilllimiting．Inthisthesis，thetianfusquareundergroundmarketinChengduistakenasano

9、bject．First，thebriefanalysistotheundergroundcommercialconstructionloadcharacteristiciscarriedon，andthenthelaws’differencesbetweennormalsystemandthenewstageiSdiscussed．BasedontheNavier-StokesequationandRNG西南交通大学硕士研究生学位论文第1

10、I页t_￡turbulent