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Publication :
Understanding energy consumption in high-performance social housing buildings : a case study from Canada

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Date

2017-12-23

Direction de publication

Direction de recherche

Titre de la revue

ISSN de la revue

Titre du volume

Éditeur

Elsevier

Projets de recherche

Structures organisationnelles

Numéro de revue

Résumé

This paper presents a case study of a recently built high-performance Canadian social housing building with the aim of comparing the expected and measured energy consumptions and to identify the parameters affecting the most the energy need. A monitoring system compiles at a 10-min frequency information related to the energy use and the thermal conditions observed in the building and its HVAC system. The building has the particularity of comprising two symmetric sections made of different timber structure systems. No significant differences of energy consumption were detected between the two parts of the buildings. However, a large variance was observed when comparing each dwelling individually regardless of their structures. The orientation of the dwelling also exhibited a minimal influence compared to these variations, suggesting that occupant behavior is the dominant factor explaining dwelling-to-dwelling variability and is thus critical for understanding energy use in residential buildings. Regression analysis showed that specific occupant actions, such as opening windows in winter or using electrical appliances, have a great impact on the energy balance of the apartments. In 2016, the performance gap between measured and expected total energy demand of the building was 74%. With the use of the large dataset coming from the building, it was possible to determine the causes behind this large gap for the reference building.

Description

Revue

Energy, Vol. 145, 677–690 (2018)

DOI

10.1016/j.energy.2017.12.107

URL vers la version publiée

Mots-clés

Building energy consumption, Energy performance gap, Monitoring measurements, Regression analysis, Occupant behavior, Cold climate

Citation

Type de document