Gupta, Rajat, Kotopouleas, Alkis (2018) Magnitude and extent of building fabric thermal performance gap in UK low energy housing. Applied Energy, 222 . pp. 673-686. ISSN 0306-2619. (doi:10.1016/j.apenergy.2018.03.096) (KAR id:68987)
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Official URL https://doi.org/10.1016/j.apenergy.2018.03.096 |
Abstract
This paper presents new evidence from a nationwide cross-project meta-study investigating the magnitude and extent of the difference between designed and measured thermal performance of the building fabric of 188 low energy dwellings in the UK. The dataset was drawn from the UK Government’s national Building Performance Evaluation programme, and comprises 50 Passivhaus (PH) and 138 non-Passivhaus (NPH) dwellings, covering different built forms and construction systems. The difference between designed and measured values of air
any discrepancies. The results showed that fabric thermal performance gap was widespread especially in terms of AP, although the magnitude of underperformance was much less in
regression analysis indicated that for every 1 m3/h/m2 reduction in designed air permeability, the gap increased by 0.8 m3/h/m2@50 Pa. Monte Carlo analysis showed that likelihood of AP gap was 78% in NPH dwellings designed to 5 m3/h/m2@50 Pa or lower. The study provides useful evidence for improving the fabric thermal performance of new housing through in-situ testing.
Item Type: | Article |
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DOI/Identification number: | 10.1016/j.apenergy.2018.03.096 |
Uncontrolled keywords: | Building fabric, Low energy dwellings, Passivhaus, Airtightness, Heat loss, Thermal transmittance, Co-heating test |
Subjects: |
N Visual Arts > NA Architecture T Technology > TH Building construction |
Divisions: | Divisions > Division of Arts and Humanities > Kent School of Architecture and Planning |
Depositing User: | Alkis Kotopouleas |
Date Deposited: | 07 Sep 2018 14:21 UTC |
Last Modified: | 16 Feb 2021 13:57 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/68987 (The current URI for this page, for reference purposes) |
Kotopouleas, Alkis: | ![]() |
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