Paper Conference

Proceedings of BSA Conference 2019: Fourth Conference of IBPSA-Italy


New tools for the hygrothermal assessment of building components: a comparison of different methodologies

Carlotta Dolzani, Martina Demattio, Marco Larcher, Ulrich Klammsteiner, Ulrich Santa

Abstract: This paper presents new tools for the hygrothermal assessment of building components. The first assessment method based on the Glaser approach is implemented on the existing software ProCasaClima, whereas the second method constitutes a new tool for the dynamic simulation of combined transport of heat and moisture in building components: ProCasaClima Hygrothermal. This latter tool is more advanced since it takes into account capillary liquid transport and moisture storage properties of materials. At the same time, ProCasaClima Hygrothermal aims to be user-friendly to maximize its diffusion among technicians. The two assessment methods will be presented and compared in the results through a case study represented by an external wall internally insulated and located in the climate of Bolzano/Bozen. A second analysis is carried out specifically on the Hygrothermal tool to compare the results obtained with two different climate files. The first uses the reference year data provided by the CTI while the second is based on climate data obtained from the software Meteonorm, once again on the city of Bolzano/Bozen, but also including data referring to the rain. Finally, it will be possible to evaluate the influence of this phenomenon on the risk of interstitial condensation for the specific case analysed. The studies presented in this paper are supported by the ERDF European project BuildDOP.
Pages: 7 - 14