Measuring the heat transfer coefficient (HTC) in buildings: A stakeholder's survey

Deb, Chirag; Gelder, Liesje Van; Spiekman, M.E.; Pandraud, Guillaume; Jack, Richard; Fitton, Richard

doi:10.1016/j.rser.2021.111008

Cited by 22 publications

(14 citation statements)

References 37 publications

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“…As an integrated part of the IEA EBC Annex-71 project: 'Building energy performance assessment based on in-situ measurements' [47]. A portable site office (PSO) is customized and constructed for this study (Fig.…”

Section: /33mentioning

confidence: 99%

Time-dependent solar aperture estimation of a building: Comparing grey-box and white-box approaches

Zhang

Rasmussen

Sælens

et al. 2022

Renewable and Sustainable Energy Reviews

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Section: /33mentioning

confidence: 99%

Time-dependent solar aperture estimation of a building: Comparing grey-box and white-box approaches

Zhang

Rasmussen

Sælens

et al. 2022

Renewable and Sustainable Energy Reviews

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“…A further motivation for isolating ground losses is to quantify heat loss to a particular element. This dissagregation of the HTC is advantagous for detecting if particular elements are or are not performing in line with expetaiton [8]. The QUB method has shown to be effective in measuring elemental heat loss in all other external facing elements [17,23].…”

Section: Floor Losses In Slab-on-ground Constructionsmentioning

confidence: 99%

“…The calculations for determining fabric performance contain assumptions or default performance values that do not match as built performance [6,7]. Awareness of the performance gap has popularised the concept of measuring building fabric performance to give stakeholders confidence in the thermal performance of their buildings [7,8]. QUB is an in-situ rapid measurement technique that can measure the whole house performance of a property within a single night.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Floor Losses in the Context of QUB Measurements of a Passivhaus Dwelling

Collett,

Hardy,

Meulemans

et al. 2023

J. Phys.: Conf. Ser.

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Measuring the performance of building fabric is increasingly important as stakeholders wish to compare as-built performance with design expectations. When measuring whole house performance (Heat Transfer Coefficient) heat losses through the floor in slab-on-ground type constructions are intractable and introduce uncertainty into measurements. As such efforts are often made to isolate them from measurements. The QUB method is a practical method of measuring whole house building performance. Previous work has shown floor losses can successfully be isolated from measurement through use of heat flux measurements and additional calculation steps. To further test this isolation procedure, three QUB tests were performed on a slab-on-ground Passivhaus dwelling. Whilst the whole house performance measurements agree with the design performance (all results within 11% of the design) the floor losses measured appear unrealistically high. The conditions of the tests, conducted in late summer and in a highly insulated property, are likely causing the heat flux measurements to capture heat being stored in the floor construction rather than heat being lost from the property. Follow up measurements in more preferable conditions are planned which will assist in determining the cause of these observations.

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“…This study is a part of the Ph.D. research of the first author, aiming to develop, evaluate and optimize on-site databased dynamic solar gain estimation techniques. It is also part of the IEA EBC Annex-71 project: 'Building energy performance assessment based on in-situ measurements' [65]. The basic strategy of the Ph.D. research is exploring solar gain estimation techniques step-by-step alongside an increased complexity of cases: from reduced size to fullscale building cases and from simplified heating signal to real occupants' heating profiles.…”

Section: Study Case 41 Description Of the Test Buildingmentioning

confidence: 99%

Estimating dynamic solar gains from on-site measured data: An ARX modelling approach

2022

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Measuring the heat transfer coefficient (HTC) in buildings: A stakeholder's survey

Cited by 22 publications

References 37 publications

Time-dependent solar aperture estimation of a building: Comparing grey-box and white-box approaches

Time-dependent solar aperture estimation of a building: Comparing grey-box and white-box approaches

Evaluating Floor Losses in the Context of QUB Measurements of a Passivhaus Dwelling

Estimating dynamic solar gains from on-site measured data: An ARX modelling approach

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