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|Title: ||First evidence for the reliability of building co-heating tests|
|Authors: ||Jack, Richard|
Loveday, Dennis L.
Lomas, Kevin J.
|Issue Date: ||2017|
|Publisher: ||Taylor & Francis © The Authors|
|Citation: ||JACK, R. ... et al, 2017. First evidence for the reliability of building co-heating tests. Building Research & Information, 46 (4), pp.383-401.|
|Abstract: ||This paper provides powerful evidence empirically demonstrating for the first time the reliability of the co-heating test. The test is widely used throughout Europe to measure the total heat transfer through the fabric of buildings and to calculate the heat-transfer coefficient (HTC; units W/K). A reliable test is essential to address the ‘performance gap’, where in-use energy performance is consistently, and often substantially, poorer than predicted. The co-heating test could meet this need, but its reliability requires confirmation. Seven teams independently conducted co-heating tests on the same detached house near Watford, UK. Despite differences in the weather and in the experimental and analytical approaches, the teams’ final reported HTC measurements were within ±10% of the mean. With further standardization it is likely to be possible to improve upon this reproducibility. Furthermore, uncertainty analysis based upon a 95% confidence interval
resulted in an estimated uncertainty in HTC measurements of ±8%. This research addresses persistent doubts about the reliability of the co-heating test. Avenues to further improvement of the test are discussed. This work helps to enable the test’s wider adoption as a component of
the regulatory process and thus improvements to standards of house construction.|
|Description: ||This is an Open Access Article. It is published by Taylor & Francis under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/|
|Sponsor: ||This analysis was conducted as part of a doctoral research project pursued within the London–Loughborough EPSRC Centre
for Doctoral Training in Energy Demand. Engineering and Physical Sciences Research Council (EPSRC) funding for the Centre is gratefully acknowledged [grant number EP/H009612/1].|
|Publisher Link: ||http://dx.doi.org/10.1080/09613218.2017.1299523|
|Appears in Collections:||Published Articles (Architecture, Building and Civil Engineering)|
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