@article{10902/12142, year = {2017}, month = {11}, url = {http://hdl.handle.net/10902/12142}, abstract = {The quantification of the overall "R-value" of building components is commonly achieved by using numerical models which are generally validated using the standardized Hot Box test. This test set-up follows a complex methodology specifically designed to deliver only the R-value. Modern building assemblies are of a level of complexity that many times a single parameter is insufficient to improve the design of the assembly. This paper proposes a simple thermal test set-up to analyse both transient and steady state heat flow processes, allowing for effective numerical fitting of parameters that describe all internal heat flow processes. As a result, the contribution of each element of an assembly can be evaluated on its overall insulating capabilities, thereby allowing for a truly optimised design solution. Two wall systems including significant thermal bridges have been chosen to illustrate this methodology. The proposed method, not only delivers a steady state thermal assessment as reliable as the standardized Hot Box procedure, but also allows a precise quantification of internal heat flows and the capability to conduct realistic transient state thermal assessments.}, organization = {This study has been developed thanks to the funding provided by the Australian Research Council - (ARC), together with the contribution of Happy Haus Pty Ltd, Hutchinson Builders Pty Ltd,Vision Developments Australia Pty Ltd and the Fire laboratory facilities at The School of Civil Engineering of The University of Queensland. The contribution of Mr. Ian Pope and Mr. Andy Wong, from The University of Queensland is also acknowledged. The authors appreciate the invaluable effort done by the partners involved in the study and the Spanish Ministry of Economy and Competitiveness for the PYRODESIGN and EVACTRAIN Project grant, Ref.: BIA2012-37890 and TRA2011-26738 respectively, financed jointly by FEDER funds.}, publisher = {Elsevier}, publisher = {Energy and Buildings, 2017, 155, 128-142}, title = {Thermal characterization of building assemblies by means of transient data assimilation}, author = {Soret Cantero, Gerardo M. and Lázaro Urrutia, David and Carrascal, Jerónimo and Alvear Portilla, Manuel Daniel and Aitchison, Mathew and Torero Cullen, José Luis}, }