[en] This study aims to inform building designers about overheating risks in nearly zero-energy dwelling and the importance of calculation methods. Three overheating risk indicators are selected and compared, comprising 1) the EPBD overheating indicator, 2) the Passive House overheating indicator, and 3) the ambient warmness degree and indoor overheating degree indicators developed by Hamdy et al. (2017) (Hamdy et al., 2017a). The third overheating calculation method represents the latest state-of-the-art method for overheating assessment. With the help of the EnergyPlus energy modeling program, a calibrated building energy model was created. Annual simulations took place for a typical meteorological year comparing overheating risk according to three calculation approaches. Results confirm a 216% difference in the overheated hours between the Energy Performance of Buildings Directive (EPBD) method and the used method of Hamdy et al. 2017. Results emphasize the need to improve the Belgian EPBD calculation method and integrate long-term thermal discomfort indicators to represent climate change and overheating risks in dwellings. Key Innovations Overheating risk estimation is calculated based on three different calculation methods, and results are compared One of the overheating calculation method takes into account future climate change scenarios and applies long-term thermal comfort evaluation indicators The findings urge the call for a new standardised wat to calculate overheating within the EU Energy Performance of Buildings Directive (EPBD) Practical Implications This paper provides a basis to integrate a new overheating calculation method in the EPBD tools in Belgium and other EU member states.
Centre de recherche :
Sustainable Building Design Lab
Disciplines :
Energie
Auteur, co-auteur :
Attia, Shady ; Université de Liège - ULiège > Département ArGEnCo > Techniques de construction des bâtiments
Rahif, Ramin ; Université de Liège - ULiège > Département ArGEnCo > Techniques de construction des bâtiments
Fani, Abdulrahman
Amer, Mohamed
Langue du document :
Anglais
Titre :
Comparison of overheating risk in nearly zero-energy dwelling based on three different overheating calculation methods
Date de publication/diffusion :
2021
Nom de la manifestation :
Building Simulation 2021 Conference
Organisateur de la manifestation :
International Building Performance Simulation Association
Lieu de la manifestation :
Bruges, Belgique
Date de la manifestation :
1-3 September 2021
Sur invitation :
Oui
Manifestation à portée :
International
Titre de l'ouvrage principal :
Proceeding of the International Building Simulation Conference
Auteur, co-auteur :
Helsen, Lieve
Maison d'édition :
KU Leuven, Leuven, Belgique
Pagination :
30147-30153
Peer reviewed :
Peer reviewed
Intitulé du projet de recherche :
[OCCuPANt] Impacts of climate change on buildings in Belgium during summer
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