Application of Partial Safety Factorsin Building Energy Performance Assessment

Henrik Brohus, Per Heiselberg, A. Hesselholt, H. Rasmussen

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Resumé

In practise many buildings show significant deviation between the predicted annual energy consumption and the actual energy consumption. One of the main reasons for the discrepancy is the difference between the assumptions made during the calculations and the actual conditions including occupants' behaviour.

This paper presents two methods to consider uncertainty and spread of energy consumption calculations in practise, namely a simulation approach and a safety factor approach.

A simulation approach is investigated using Monte Carlo analysis where a comprehensive list of stochastic input parameters is evaluated by sensitivity and uncertainty analysis to develop a significantly reduced set of stochastic input parameters.

The safety factor approach provides a means of enforcing the maximum allowed energy consumption in the building code by multiplying the maximum limit by a partial safety factor to obtain a design energy consumption that can be used for the usual energy calculations.

OriginalsprogEngelsk
TitelBuilding Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July : Proceedings of the 11th International Building Performance Simulation Association Conference
RedaktørerPaul A. Strachan, Nick J. Kelly, Michaël Kummert
ForlagThe International Building Performance Simulation Association Conference
Publikationsdato2009
Sider1014-1021
ISBN (Trykt)978-0-947649-40-1
StatusUdgivet - 2009
BegivenhedThe International Building Performance Simulation Association Conference (IBPSA) - Glasgow, Storbritannien
Varighed: 27 jul. 200930 jul. 2009
Konferencens nummer: 11

Konference

KonferenceThe International Building Performance Simulation Association Conference (IBPSA)
Nummer11
LandStorbritannien
ByGlasgow
Periode27/07/200930/07/2009

Bibliografisk note

Published on a DVD.

Citer dette

Brohus, H., Heiselberg, P., Hesselholt, A., & Rasmussen, H. (2009). Application of Partial Safety Factorsin Building Energy Performance Assessment. I P. A. Strachan, N. J. Kelly, & M. Kummert (red.), Building Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July: Proceedings of the 11th International Building Performance Simulation Association Conference (s. 1014-1021). The International Building Performance Simulation Association Conference.
Brohus, Henrik ; Heiselberg, Per ; Hesselholt, A. ; Rasmussen, H. / Application of Partial Safety Factorsin Building Energy Performance Assessment. Building Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July: Proceedings of the 11th International Building Performance Simulation Association Conference. red. / Paul A. Strachan ; Nick J. Kelly ; Michaël Kummert. The International Building Performance Simulation Association Conference, 2009. s. 1014-1021
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title = "Application of Partial Safety Factorsin Building Energy Performance Assessment",
abstract = "In practise many buildings show significant deviation between the predicted annual energy consumption and the actual energy consumption. One of the main reasons for the discrepancy is the difference between the assumptions made during the calculations and the actual conditions including occupants' behaviour.This paper presents two methods to consider uncertainty and spread of energy consumption calculations in practise, namely a simulation approach and a safety factor approach.A simulation approach is investigated using Monte Carlo analysis where a comprehensive list of stochastic input parameters is evaluated by sensitivity and uncertainty analysis to develop a significantly reduced set of stochastic input parameters.The safety factor approach provides a means of enforcing the maximum allowed energy consumption in the building code by multiplying the maximum limit by a partial safety factor to obtain a design energy consumption that can be used for the usual energy calculations.",
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Brohus, H, Heiselberg, P, Hesselholt, A & Rasmussen, H 2009, Application of Partial Safety Factorsin Building Energy Performance Assessment. i PA Strachan, NJ Kelly & M Kummert (red), Building Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July: Proceedings of the 11th International Building Performance Simulation Association Conference. The International Building Performance Simulation Association Conference, s. 1014-1021, The International Building Performance Simulation Association Conference (IBPSA), Glasgow, Storbritannien, 27/07/2009.

Application of Partial Safety Factorsin Building Energy Performance Assessment. / Brohus, Henrik; Heiselberg, Per; Hesselholt, A.; Rasmussen, H.

Building Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July: Proceedings of the 11th International Building Performance Simulation Association Conference. red. / Paul A. Strachan; Nick J. Kelly; Michaël Kummert. The International Building Performance Simulation Association Conference, 2009. s. 1014-1021.

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

TY - GEN

T1 - Application of Partial Safety Factorsin Building Energy Performance Assessment

AU - Brohus, Henrik

AU - Heiselberg, Per

AU - Hesselholt, A.

AU - Rasmussen, H.

N1 - Published on a DVD.

PY - 2009

Y1 - 2009

N2 - In practise many buildings show significant deviation between the predicted annual energy consumption and the actual energy consumption. One of the main reasons for the discrepancy is the difference between the assumptions made during the calculations and the actual conditions including occupants' behaviour.This paper presents two methods to consider uncertainty and spread of energy consumption calculations in practise, namely a simulation approach and a safety factor approach.A simulation approach is investigated using Monte Carlo analysis where a comprehensive list of stochastic input parameters is evaluated by sensitivity and uncertainty analysis to develop a significantly reduced set of stochastic input parameters.The safety factor approach provides a means of enforcing the maximum allowed energy consumption in the building code by multiplying the maximum limit by a partial safety factor to obtain a design energy consumption that can be used for the usual energy calculations.

AB - In practise many buildings show significant deviation between the predicted annual energy consumption and the actual energy consumption. One of the main reasons for the discrepancy is the difference between the assumptions made during the calculations and the actual conditions including occupants' behaviour.This paper presents two methods to consider uncertainty and spread of energy consumption calculations in practise, namely a simulation approach and a safety factor approach.A simulation approach is investigated using Monte Carlo analysis where a comprehensive list of stochastic input parameters is evaluated by sensitivity and uncertainty analysis to develop a significantly reduced set of stochastic input parameters.The safety factor approach provides a means of enforcing the maximum allowed energy consumption in the building code by multiplying the maximum limit by a partial safety factor to obtain a design energy consumption that can be used for the usual energy calculations.

M3 - Article in proceeding

SN - 978-0-947649-40-1

SP - 1014

EP - 1021

BT - Building Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July

A2 - Strachan, Paul A.

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PB - The International Building Performance Simulation Association Conference

ER -

Brohus H, Heiselberg P, Hesselholt A, Rasmussen H. Application of Partial Safety Factorsin Building Energy Performance Assessment. I Strachan PA, Kelly NJ, Kummert M, red., Building Simulation 2009 : University of Stractclyde, Glosgow, 27th-30th July: Proceedings of the 11th International Building Performance Simulation Association Conference. The International Building Performance Simulation Association Conference. 2009. s. 1014-1021