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Interlaboratory test for the determination of repeatability and reprocucibility of buildings airtightness measurements

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Abstract
The issue of the uncertainty of building airtightness measurements has built up a greater importance since this topic was introduced in many regulations regarding the energy performance of buildings. Different studies have contributed to the evaluation of the uncertainty but the question is still incompletely solved in practice. To contribute to the determination of the repeatability and reproducibility of these measurements in practice, the Belgian Building Research Institute organized interlaboratory tests with 10 other laboratories. This paper presents the details of the study together with the repeatability and reproducibility standard deviation calculated at different pressure differences. The issue of unweighted vs. weighted least square regression is also discussed. The reproducibility standard deviation calculated at 50 Pa was 2.4%. It was below 3% between 30 and 100 Pa but was noticeably higher at 4 and 10 Pa. However the application of a weighted least square regression showed a possibility to reduce the standard deviation of the results calculated at low pressure difference.
Keywords
blower door, Airtightness, uncertainty, round robin

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Citation

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Chicago
Delmotte, Christophe, and Jelle Laverge. 2011. “Interlaboratory Test for the Determination of Repeatability and Reprocucibility of Buildings Airtightness Measurements.” In AIVC Conferences, 32nd, Proceedings. Brussels, Belgium: AIVC.
APA
Delmotte, Christophe, & Laverge, J. (2011). Interlaboratory test for the determination of repeatability and reprocucibility of buildings airtightness measurements. AIVC conferences, 32nd, Proceedings. Presented at the 32nd AIVC conference ; 1st TightVent conference : Towards optimal airtightness performance, Brussels, Belgium: AIVC.
Vancouver
1.
Delmotte C, Laverge J. Interlaboratory test for the determination of repeatability and reprocucibility of buildings airtightness measurements. AIVC conferences, 32nd, Proceedings. Brussels, Belgium: AIVC; 2011.
MLA
Delmotte, Christophe, and Jelle Laverge. “Interlaboratory Test for the Determination of Repeatability and Reprocucibility of Buildings Airtightness Measurements.” AIVC Conferences, 32nd, Proceedings. Brussels, Belgium: AIVC, 2011. Print.
@inproceedings{1980491,
  abstract     = {The issue of the uncertainty of building airtightness measurements has built up a greater importance since this topic was introduced in many regulations regarding the energy performance of buildings. Different studies have contributed to the evaluation of the uncertainty but the question is still incompletely solved in practice. To contribute to the determination of the repeatability and reproducibility of these measurements in practice, the Belgian Building Research Institute organized interlaboratory tests with 10 other laboratories. This paper presents the details of the study together with the repeatability and reproducibility standard deviation calculated at different pressure differences. The issue of unweighted vs. weighted least square regression is also discussed. The reproducibility standard deviation calculated at 50 Pa was 2.4\%. It was below 3\% between 30 and 100 Pa but was noticeably higher at 4 and 10 Pa. However the application of a weighted least square regression showed a possibility to reduce the standard deviation of the results calculated at low pressure difference.},
  author       = {Delmotte, Christophe and Laverge, Jelle},
  booktitle    = {AIVC conferences, 32nd, Proceedings},
  keyword      = {blower door,Airtightness,uncertainty,round robin},
  language     = {eng},
  location     = {Brussels, Belgium},
  pages        = {9},
  publisher    = {AIVC},
  title        = {Interlaboratory test for the determination of repeatability and reprocucibility of buildings airtightness measurements},
  year         = {2011},
}