Short time non-destructive evaluation of thermal performances of building walls by studying transient heat transfer - ScienceDirect
Thermal performances of building walls are significant for energy conservation. However, very few non-destructive evaluation methods exist to quantitatively diagnose the building walls in situ due to the walls’ large thickness. Moreover, most of the existing methods are inconvenient to implement in situ and take a long characterization time. This paper studies transient heat transfer to estimate the wall's thermal properties based on the thermal quadrupoles modelling. Semi-infinite boundary condition is assumed at the rear face of the wall. With this assumption, only the front face response of the wall is considered....
Keywords: Short time NDSE; Thick building walls; Unit-step response; Thermal quadrupoles modelling
Yingying Yang, Tingting Vogt Wu, Alain Sempey, Jean Dumoulin (IFSTTAR, COSYS-SII), Jean-Christophe Batsale,Short time non-destructive evaluation of thermal performances of building walls by studying transient heat transfer,Energy and Buildings,Volume 184,2019,Pages 141-151,ISSN 0378-7788,https://doi.org/10.1016/j.enbuild.2018.12.002. http://www.sciencedirect.com/science/article/pii/S0378778818324277
Thermal performances of building walls are significant for energy conservation. However, very few non-destructive evaluation methods exist to quantitatively diagnose the building walls in situ due to the walls’ large thickness. Moreover, most of the existing methods are inconvenient to implement in situ and take a long characterization time. This paper studies transient heat transfer to estimate the wall's thermal properties based on the thermal quadrupoles modelling. Semi-infinite boundary condition is assumed at the rear face of the wall. With this assumption, only the front face response of the wall is considered....
Keywords: Short time NDSE; Thick building walls; Unit-step response; Thermal quadrupoles modelling
Yingying Yang, Tingting Vogt Wu, Alain Sempey, Jean Dumoulin (IFSTTAR, COSYS-SII), Jean-Christophe Batsale,Short time non-destructive evaluation of thermal performances of building walls by studying transient heat transfer,Energy and Buildings,Volume 184,2019,Pages 141-151,ISSN 0378-7788,https://doi.org/10.1016/j.enbuild.2018.12.002. http://www.sciencedirect.com/science/article/pii/S0378778818324277