Uncertainty of Energy Consumption Assessment of Domestic Buildings

Henrik Brohus, Per Heiselberg, A. Simonsen, K.C. Sørensen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

24 Citationer (Scopus)
167 Downloads (Pure)

Resumé

In order to assess the influence of energy reduction initiatives, to determine the expected annual cost, to calculate life cycle cost, emission impact, etc. it is crucial to be able to assess the energy consumption reasonably accurate.

The present work undertakes a theoretical and empirical study of the uncertainty of energy consumption assessment of domestic buildings. The calculated energy consumption of a number of almost identical domestic buildings in Denmark is compared with the measured energy consumption. Furthermore, the uncertainty is determined by means of stochastic modelling based on input distributions found by literature study, industry guidelines, measurements and - when necessary - simple assumptions.

A number of parameters are investigated and ranked in terms of importance to determine which ones contribute the most to the overall level of uncertainty. Measurements and simulations are found to correspond reasonably well; however, it is also found that significant differences may occur between calculated and measured energy consumption due to the spread and due to the fact that the result can only be determined with a certain probability. It is found that occupants' behaviour is the major contributor to the variance of the energy consumption.
OriginalsprogEngelsk
Titele-nova Internationaler Kongress 2009 : Null Emissions Gebäude : Gebäude, Gebäudeteile, Anlagen, Anlagenkomponenten, Energie- und Gebäudekonzepte
RedaktørerHildegard Gremmel-Simon
ForlagFachhochschulstudiengänge Burgenland
Publikationsdato2009
Sider31-38
ISBN (Trykt)9783950091991
StatusUdgivet - 2009
Begivenhede-nova Internationaler Kongress - Pinkafeld, Østrig
Varighed: 19 nov. 200920 nov. 2009

Konference

Konferencee-nova Internationaler Kongress
LandØstrig
ByPinkafeld
Periode19/11/200920/11/2009

Fingerprint

Energy utilization
Uncertainty
Costs
Life cycle
Industry

Citer dette

Brohus, H., Heiselberg, P., Simonsen, A., & Sørensen, K. C. (2009). Uncertainty of Energy Consumption Assessment of Domestic Buildings. I H. Gremmel-Simon (red.), e-nova Internationaler Kongress 2009: Null Emissions Gebäude : Gebäude, Gebäudeteile, Anlagen, Anlagenkomponenten, Energie- und Gebäudekonzepte (s. 31-38). Fachhochschulstudiengänge Burgenland.
Brohus, Henrik ; Heiselberg, Per ; Simonsen, A. ; Sørensen, K.C. / Uncertainty of Energy Consumption Assessment of Domestic Buildings. e-nova Internationaler Kongress 2009: Null Emissions Gebäude : Gebäude, Gebäudeteile, Anlagen, Anlagenkomponenten, Energie- und Gebäudekonzepte. red. / Hildegard Gremmel-Simon. Fachhochschulstudiengänge Burgenland, 2009. s. 31-38
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title = "Uncertainty of Energy Consumption Assessment of Domestic Buildings",
abstract = "In order to assess the influence of energy reduction initiatives, to determine the expected annual cost, to calculate life cycle cost, emission impact, etc. it is crucial to be able to assess the energy consumption reasonably accurate.The present work undertakes a theoretical and empirical study of the uncertainty of energy consumption assessment of domestic buildings. The calculated energy consumption of a number of almost identical domestic buildings in Denmark is compared with the measured energy consumption. Furthermore, the uncertainty is determined by means of stochastic modelling based on input distributions found by literature study, industry guidelines, measurements and - when necessary - simple assumptions.A number of parameters are investigated and ranked in terms of importance to determine which ones contribute the most to the overall level of uncertainty. Measurements and simulations are found to correspond reasonably well; however, it is also found that significant differences may occur between calculated and measured energy consumption due to the spread and due to the fact that the result can only be determined with a certain probability. It is found that occupants' behaviour is the major contributor to the variance of the energy consumption.",
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Brohus, H, Heiselberg, P, Simonsen, A & Sørensen, KC 2009, Uncertainty of Energy Consumption Assessment of Domestic Buildings. i H Gremmel-Simon (red.), e-nova Internationaler Kongress 2009: Null Emissions Gebäude : Gebäude, Gebäudeteile, Anlagen, Anlagenkomponenten, Energie- und Gebäudekonzepte. Fachhochschulstudiengänge Burgenland, s. 31-38, e-nova Internationaler Kongress, Pinkafeld, Østrig, 19/11/2009.

Uncertainty of Energy Consumption Assessment of Domestic Buildings. / Brohus, Henrik; Heiselberg, Per; Simonsen, A.; Sørensen, K.C.

e-nova Internationaler Kongress 2009: Null Emissions Gebäude : Gebäude, Gebäudeteile, Anlagen, Anlagenkomponenten, Energie- und Gebäudekonzepte. red. / Hildegard Gremmel-Simon. Fachhochschulstudiengänge Burgenland, 2009. s. 31-38.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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T1 - Uncertainty of Energy Consumption Assessment of Domestic Buildings

AU - Brohus, Henrik

AU - Heiselberg, Per

AU - Simonsen, A.

AU - Sørensen, K.C.

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N2 - In order to assess the influence of energy reduction initiatives, to determine the expected annual cost, to calculate life cycle cost, emission impact, etc. it is crucial to be able to assess the energy consumption reasonably accurate.The present work undertakes a theoretical and empirical study of the uncertainty of energy consumption assessment of domestic buildings. The calculated energy consumption of a number of almost identical domestic buildings in Denmark is compared with the measured energy consumption. Furthermore, the uncertainty is determined by means of stochastic modelling based on input distributions found by literature study, industry guidelines, measurements and - when necessary - simple assumptions.A number of parameters are investigated and ranked in terms of importance to determine which ones contribute the most to the overall level of uncertainty. Measurements and simulations are found to correspond reasonably well; however, it is also found that significant differences may occur between calculated and measured energy consumption due to the spread and due to the fact that the result can only be determined with a certain probability. It is found that occupants' behaviour is the major contributor to the variance of the energy consumption.

AB - In order to assess the influence of energy reduction initiatives, to determine the expected annual cost, to calculate life cycle cost, emission impact, etc. it is crucial to be able to assess the energy consumption reasonably accurate.The present work undertakes a theoretical and empirical study of the uncertainty of energy consumption assessment of domestic buildings. The calculated energy consumption of a number of almost identical domestic buildings in Denmark is compared with the measured energy consumption. Furthermore, the uncertainty is determined by means of stochastic modelling based on input distributions found by literature study, industry guidelines, measurements and - when necessary - simple assumptions.A number of parameters are investigated and ranked in terms of importance to determine which ones contribute the most to the overall level of uncertainty. Measurements and simulations are found to correspond reasonably well; however, it is also found that significant differences may occur between calculated and measured energy consumption due to the spread and due to the fact that the result can only be determined with a certain probability. It is found that occupants' behaviour is the major contributor to the variance of the energy consumption.

M3 - Article in proceeding

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SP - 31

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BT - e-nova Internationaler Kongress 2009

A2 - Gremmel-Simon, Hildegard

PB - Fachhochschulstudiengänge Burgenland

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Brohus H, Heiselberg P, Simonsen A, Sørensen KC. Uncertainty of Energy Consumption Assessment of Domestic Buildings. I Gremmel-Simon H, red., e-nova Internationaler Kongress 2009: Null Emissions Gebäude : Gebäude, Gebäudeteile, Anlagen, Anlagenkomponenten, Energie- und Gebäudekonzepte. Fachhochschulstudiengänge Burgenland. 2009. s. 31-38