金屬連接件對保溫與結(jié)構(gòu)一體化墻體熱工性能影響實(shí)驗(yàn)研究及模擬驗(yàn)證

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LI Yong ,HAO Wenhui2, ZHAO Yanyan3,GUO Zhaohui1,REN Zhili4 (1.Hebei Province Center for Building Quality Inspection Co.,Ltd.,Shijiazhuang O5O227,China; 2.Hebei Universityof Science and Technology College of Civil Engineering,Shijiazhuang O5O018,China; 3.Hebei Building Research Engineering Technology Co.,Ltd.,Shijiazhuang O50227,China; 4. Chongqing University School of Civil Engineering, Chongqing 40o045, China)
Abstract:Inordertoverifytheaccuracyandreliabilityofusingthemethodofsimulationcalculationtostudytheinfluenceofmetal conectorsonalpfoanceofthalisoadrucalitegatioallhexpimentalwallifstdecding totheprotectiehotboxmethodstipulatedin"DeterinatioandCalibrationofTeralIsulationSteadyStateHeatTransferProertis andProtectivehotboxMethod"(GB/T13475—2O21).experimentalsudyisariedoutonthree,sixandnineinsulationandstructural integratiowallsithncoedetaloectoroneexpeetalplatfoandteasudhatrsferofcntsofese obtained.ThenAirpakcomputationalfluiddynamicssoftwareisusedtoestablishthesamethreegroupsofmodelsastheexpermntal study,andsetthesamehotchamberandcoldchambertemperatureconditions,respectively,tocalculatetheirheattransfer coeficients.Finaly,themeasuredresultsarecomparedwiththesimulatedones.Theresultsshowthattheaveragerelativeerorsof insulation and structural integration wall are 4.92% , 4.69% and 3.96% respectively when the number of anchored metal connectors is 3,6 and9,and the simulation errors are all within 5% ,which meet the requirements of engineering calculation.
Keywords:protective hotbox method;metal metal connector;heat transfer coeficient;therelative error
0 引言
對圍護(hù)結(jié)構(gòu)傳熱系數(shù)的修正是準(zhǔn)確判斷建筑節(jié)能效果的重要途徑,而墻體及其構(gòu)件作為圍護(hù)結(jié)構(gòu)熱量流失的主要部分[1-2],其保溫隔熱性的好壞直接影響到建筑的節(jié)能效果[3]。(剩余4560字)