Materials thermal properties are generally assumed equal to nominal values in building simulation codes, even if they depend on both temperature and moisture content. For some materials, such as timber, this hypothesis can bring inaccuracies affecting the predicted building energy performance. In this research, a MATLAB® ID heat and mass transfer model was developed according to the finite difference approach, with material thermal conductivity function of water vapour partial pressure and temperature. After calibration against laboratory experiments on spruce XLAM specimens, annual simulations were run for 110 Italian climates and specific hourly heat fluxes compared to those determined with nominal properties.

Assessment of the thermal performance of timber walls under nominal or moisture and temperature dependent properties / Danovska, M.; Pernigotto, G.; Baggio, P.; Gasparella, A.. - In: BUILDING SIMULATION CONFERENCE PROCEEDINGS. - ISSN 2522-2708. - ELETTRONICO. - 1:(2019), pp. 508-515. (Intervento presentato al convegno 16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019 tenutosi a Angelicum Congress Centre, ita nel 2019).

Assessment of the thermal performance of timber walls under nominal or moisture and temperature dependent properties

Danovska M.;Pernigotto G.;Baggio P.;Gasparella A.
2019-01-01

Abstract

Materials thermal properties are generally assumed equal to nominal values in building simulation codes, even if they depend on both temperature and moisture content. For some materials, such as timber, this hypothesis can bring inaccuracies affecting the predicted building energy performance. In this research, a MATLAB® ID heat and mass transfer model was developed according to the finite difference approach, with material thermal conductivity function of water vapour partial pressure and temperature. After calibration against laboratory experiments on spruce XLAM specimens, annual simulations were run for 110 Italian climates and specific hourly heat fluxes compared to those determined with nominal properties.
2019
Building Simulation Conference Proceedings
Roma Italy
International Building Performance Simulation Association
Danovska, M.; Pernigotto, G.; Baggio, P.; Gasparella, A.
Assessment of the thermal performance of timber walls under nominal or moisture and temperature dependent properties / Danovska, M.; Pernigotto, G.; Baggio, P.; Gasparella, A.. - In: BUILDING SIMULATION CONFERENCE PROCEEDINGS. - ISSN 2522-2708. - ELETTRONICO. - 1:(2019), pp. 508-515. (Intervento presentato al convegno 16th International Conference of the International Building Performance Simulation Association, Building Simulation 2019 tenutosi a Angelicum Congress Centre, ita nel 2019).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/323495
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? ND
social impact