Pelsmakers, S, Fitton, R ORCID: https://orcid.org/0000-0002-7514-6819, Biddulph, P, Swan, W
ORCID: https://orcid.org/0000-0001-8780-6557, Croxford, B, Stamp, S, Calboli, FCF, Shipworth, D, Lowe, R and Elwell, CA
2017,
'Heat-flow variability of suspended timber ground floors: Implications for in-situ heat-flux measuring'
, Energy and Buildings, 138
, pp. 396-405.
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Abstract
Reducing space heating energy demand supports the UK’s legislated carbon emission reduction targets and requires the effective characterisation of the UK’s existing housing stock to facilitate retrofitting decision-making. Approximately 6.6 million UK dwellings pre-date 1919 and are predominantly of suspended timber ground floor construction, the thermal performance of which has not been extensively investigated. This paper examines suspended timber ground floor heat-flow by presenting high resolution in-situ heat-flux measurements undertaken in a case study house at 15 point locations on the floor. The results highlight significant variability in observed heat-flow: point U-values range from 0.56 ± 0.05 to 1.18 ± 0.11 Wm−2 K−1. This highlights that observing only a few measurements is unlikely to be representative of the whole floor heat-flow and the extrapolation from such point values to whole floor U-value estimates could lead to its over- or under- estimation. Floor U-value models appear to underestimate the actual measured floor U-value in this case study. This paper highlights the care with which in-situ heat-flux measuring must be undertaken to enable comparison with models, literature and between studies and the findings support the unique, high-resolution in-situ monitoring methodology used in this study for further research in this area.
Item Type: | Article |
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Schools: | Schools > School of the Built Environment > Centre for Urban Processes, Resilient Infrastructures & Sustainable Environments |
Journal or Publication Title: | Energy and Buildings |
Publisher: | Elsevier |
ISSN: | 0378-7788 |
Funders: | Non funded research |
Depositing User: | Professor Richard Fitton |
Date Deposited: | 03 Jan 2017 11:55 |
Last Modified: | 15 Feb 2022 21:35 |
URI: | https://usir.salford.ac.uk/id/eprint/41109 |
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