INTERNATIONALISOSTANDARD13786Thirdedition2017-06Thermalperformanceofbuildingcomponents—Dynamicthermalcharacteristics—CalculationmethodsPerformancethermiquedescomposantsdebatiment—Caracteristiquesthermiquesdynamiques—MethodesdecalculReferencenumberISO13786:2017(E)©ISO2017ISO13786:2017(E)/*\COPYRIGHTPROTECTEDDOCUMENT;©ISO2017,PublishedinSwitzerlandsAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformiorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorJwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO’smemberbodyinthecountiyof,therequester.!ISOcopyrightofficejCh.deBlandonnet8•CP401?CH-1214Vernier,Geneva,Switzerland>Tel.+41227490111Fax+41227490947>copyright@iso.org:www.iso.orgii©ISO2017-AllrightsreservedISO13786:2017(E)ContentsPageForewordivIntroduction.....................................................................................................................................................................................v1Scope12Normativereferences...................................................................................................................................................13Termsanddefinitions13.1Definitionsvalidforanycomponent........................................................................................................................23.2Definitionsvalidonlyforonedimensionalheatflow.....................................................................................33.3Other............................................................................................................................................................................................54Symbolsandsubscripts54.1Symbols......................................................................................................................................................................................54.2Subscripts.................................................................................................................................................................................64.3Specificsymbols....................................................................................................................................................................65Descriptionofthemethod....................................65.1Output.........................................................................................................................................................................................65.2Generaldescription.............................................................................................................................................................66Calculationofdynamicthermalproperties...................................................................................................66.1Outputdata......................................................................................................................66.2Calculationtimeintervals...............................................................................................................................................76.3Inputdata76.4Periodofthethermalvariations86.5Heatcapacity8_7Heattransfermatrixofamulti-layer...
