基于CFD建筑热环境模拟的建筑方案优化设计研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()():PMV,CFD,,6CFDOptimizingbuildingschemedesignbasedonbuildingthermalenvironmentsimulationbyCFDsoftwareByZhangWeijie,JinWenandShengXiaokangAbstractConsidersthesixarchitecturalfactorsaffectingbuildingthermalenvironmentsuchasthearearatioofwindow2to2wall,typeofthewindow(heattransfercoefficient),dimensionsofthehorizontalshadeplate,heattransfercoefficientoftheexternalwall,heattransfercoefficientoftheroofanddimensionsoftheroom(lengthheightwidth).Takingmeanindoortemperature,meanPMV,temperaturenon2uniformcoefficientandvelocitynon2uniformcoefficientastheevaluatingindexesofindoorthermalenvironment,obtainstheoptimalcombinationofthesixfactorsbyCFDsimulationandorthogonalexperimentmethodforabetterindoorthermalenvironmentfornaturalventilatedbuildings.Keywordsbuildingschemedesign,thermalenvironmentsimulation,orthogonalexperiment,CFDsoftwareHebeiUniversityofEngineering,Handan,HebeiProvince,China0,??,,1Airpak6,611.13,,39HV&AC2010403,,19629,,056038(0)13315088363E2mail:[e-mail]:2008207217:2008210217:2010201228©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(73)14:00(73EnergyPlusIWEC1,14:00,)AirpakEnergyPlus1.2.21):180W/;2):,1.2met(1met=58.2W/m2)1.2.3,EnergyPlus1.2.4,6:(A),()(B),()(C),(D),(E)()(F)3,11ABC/mD/(W/(m2))E/(W/(m2))F/m10.3(6.26W/(m2))0.50.502.1363420.5(2.76W/(m2))1.02.070.3964330.7(1.778W/(m2))1.50.250.154631.31.3.1[4],,;,1.3.2,EnergyPlus2CFDCFD[5]Airpak2.1,,:(fluidgap)3,2,21;,o2grid0.001;4249HV&AC2010403©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(37)[6],3,Kijji,,Kij=1sKij,sji,Kijji;Rjj,Rj=maxi{Kij}-mini{Kij}CFD18,,PMV6353ABCDEFt-ktkuPMVPMV11(0.3)1(6.257)1(0.5)1(0.50)1(2.13)1(634)135.1540.0791.3632.983212(2.761)2(1.0)2(2.07)2(0.39)2(643)233.5040.0771.3532.713313(1.778)3(1.5)3(0.25)3(0.15)3(463)333.1460.0751.4052.63642(0.5)11223335.5980.0941.4412.9655222331134.0310.0741.3772.8666233112235.0490.0821.3862.96873(0.7)12132335.4610.0761.3852.9858323213136.5440.1081.4262.9829331321235.6010.0731.3922.99310113322134.0440.0741.3562.85811121133233.7850.0751.4102.80812132211335.0990.0821.3622.97513212313235.5270.0931.4452.96514223121334.7010.0771.3822.95415231232134.0340.0771.3512.86616313231235.9150.0751.4002.99117321312335.9820.0811.3732.99318332123136.1940.0101.4452.981t-K1j34.12235.28335.02635.05735.55935.08435.000K2j34.82334.75834.96935.11634.94034.67934.897K3j35.94934.85434.90034.72234.39535.13234.998Rj1.8270.5250.1260.3941.1640.4530.103kuK1j1.3751.3981.3881.3951.3921.3791.386K2j1.3971.3871.3951.3891.3871.3671.398K3j1.4031.3901.3921.3911.3881.4291.391Rj0.0280.0110.0070.0060.0070.0620.012ktK1j0.0770.0820.0800.0810.0870.0770.085K2j0.0830.0820.0840.0850.0820.0780.079K3j0.0850.0810.0820.0780.0750.0910.081Rj0.0080.0010.0040.0070.0120.0140.006PMVK1j2.8292.9582.9352.9462.9782.9602.923K2j2.9312.8862.9142.9152.9112.8972.906K3j2.9882.9032.8982.8852.8582.8892.918Rj0.1590.0720.0370.0610.1200.0710.01759HV&AC2010403©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.|PMV|:A1B3C1D3E3F1A1B2C1D2E3F2PMVA1B2C3D3E3F363():FEADCBFABCEDPMVAEBFDCPMV,:A1B2C1D3E3F218,:t-=32.855,kt=0.078,ku=1.337,PMV=2.55y=1.5mPMV6,,PMV2.55,,(),(,PMV2.55,69HV&AC2010403©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.),,,,,4PMV,Airpak2.1,,,Airpak2.1,EnergyPlus,,,,CFD,:[1]ZhuYingxin,XiaChunhai,LinBorong.Discussingonmethodologyofapplyingbuildingthermalsimulationinconceptualdesign[C]Proceedingsofthe10thInternationalBuildingPerformanceSimulationAssociationConferenceandExhibition.Beijing,2007[2]BourgeoisD,ReinhartCF.Differentialtimescalesolutionsfordynamicboundaryconditionswithinwhole2buildingenergysimulation[C]Proceedingsofthe10thInternationalBuildingPerformanceSimulationAssociationConferenceandExhibition.Beijing,2007(116)79HV&AC2010403©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[5],33(5),,,,[6]3,()(),,,,,,,;COP,,,,,,11.5,,(),10%,,(),(),,[6],,,[6],:[1],.:[J].,2007(3):17220[2],,.[J].,2006,25(12)[3].4[J].,2009,39(7):59265,104[4].[J].,2006,6(6):83285[5].[D].:,2006[6].[J].,2005(3):22226(97)[3],,.[J].,2007,37(12):32240[4].[M].:,1999[5],,.CFD[J].,2005,40(3):3032307[6],.[M].:,2006[7],,,.[J].,1998,20(5):19222611HV&AC2010403