Garay, RobertoRiverola, AlbertoChemisana, DanielMartinez, Roberto Garay2017-08-01Garay , R , Riverola , A , Chemisana , D & Martinez , R G 2017 , ' Disaggregation process for dynamic multidimensional heat flux in building simulation ' , Energy and Buildings , vol. 148 , pp. 298-310 . https://doi.org/10.1016/j.enbuild.2017.05.0291872-6178researchoutputwizard: 11556/400Publisher Copyright: © 2017 Elsevier B.V.Heat transfer across envelopes (façade, roof, glazed areas) represents a big share of the energy flow within the heat balance of buildings. This paper focuses on areas of the envelope where multi-dimensional heat transfer occurs. These areas are commonly defined as thermal bridges, due to a localized reduction of thermal resistance of constructions in these places. This paper reviews common standardized methods to assess heat transfer in buildings, under various modelling assumptions: one-dimensional, multi-dimensional, steady state and dynamic. Within presently developed modelling and assessment methods, a need for improvement has been identified over existing methods for the thermal assessment of multi-dimensional heat transfer under dynamic conditions. A phasorial approach to differential heat transfer in thermal bridges has been developed, which serves as the dynamic extension of steady-state thermal bridge coefficients. This formulation is applied to the junction of a masonry wall with a concrete slab.131345160enginfo:eu-repo/semantics/openAccessjournal article10.1016/j.enbuild.2017.05.029Heat transferMultidimensionalFinite DifferenceThermal bridgeHeat bridgeDynamicBuildingsEnvelopesSimulationNumerical calculationHeat transferMultidimensionalFinite DifferenceThermal bridgeHeat bridgeDynamicBuildingsEnvelopesSimulationNumerical calculationCivil and Structural EngineeringBuilding and ConstructionMechanical EngineeringElectrical and Electronic Engineeringhttp://www.scopus.com/inward/record.url?scp=85019602520&partnerID=8YFLogxK