Comparison of simplified and detailed window models in office building energy simulations

Martin Thalfeldt; Jarek Kurnitski; Hendrik Voll

doi:10.1016/j.egypro.2015.11.235

Comparison of simplified and detailed window models in office building energy simulations

Martin Thalfeldt^*, Jarek Kurnitski, Hendrik Voll

^*Corresponding author for this work

Department of Civil Engineering

Tallinn University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

8 Citations (Scopus)

186 Downloads (Pure)

Abstract

The aim of this study is to quantify the gap between the simulated energy need of an office building with simplified and detailed glazing models. We studied triple, quadruple and quintuple windows and concluded that differences in energy need of similar cases with different glazing models reached 1.9 and 6.4 kWh/m² in space heating and cooling needs respectively. Significant relative differences in heating and cooling were up to 14% and 40% respectively. Largest differences appeared with triple glazing and smallest with quadruple glazing. Compared to detailed window models standard triple and quadruple glazing models resulted in lower heating and higher cooling needs, whereas in case of quintuple windows the results were the opposite.

Original language	English
Pages (from-to)	2076-2081
Number of pages	6
Journal	Energy Procedia
Volume	78
DOIs	https://doi.org/10.1016/j.egypro.2015.11.235
Publication status	Published - 1 Nov 2015
MoE publication type	A1 Journal article-refereed
Event	International Building Physics Conference - Duration: 1 Jan 1900 → …

Keywords

Energy simulations
Façade design
Glazing
Windows

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10.1016/j.egypro.2015.11.235

1-s2.0-S1876610215019670-mainFinal published version, 490 KBLicence: CC BY-NC-ND

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title = "Comparison of simplified and detailed window models in office building energy simulations",

abstract = "The aim of this study is to quantify the gap between the simulated energy need of an office building with simplified and detailed glazing models. We studied triple, quadruple and quintuple windows and concluded that differences in energy need of similar cases with different glazing models reached 1.9 and 6.4 kWh/m2 in space heating and cooling needs respectively. Significant relative differences in heating and cooling were up to 14% and 40% respectively. Largest differences appeared with triple glazing and smallest with quadruple glazing. Compared to detailed window models standard triple and quadruple glazing models resulted in lower heating and higher cooling needs, whereas in case of quintuple windows the results were the opposite.",

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AU - Voll, Hendrik

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N2 - The aim of this study is to quantify the gap between the simulated energy need of an office building with simplified and detailed glazing models. We studied triple, quadruple and quintuple windows and concluded that differences in energy need of similar cases with different glazing models reached 1.9 and 6.4 kWh/m2 in space heating and cooling needs respectively. Significant relative differences in heating and cooling were up to 14% and 40% respectively. Largest differences appeared with triple glazing and smallest with quadruple glazing. Compared to detailed window models standard triple and quadruple glazing models resulted in lower heating and higher cooling needs, whereas in case of quintuple windows the results were the opposite.

AB - The aim of this study is to quantify the gap between the simulated energy need of an office building with simplified and detailed glazing models. We studied triple, quadruple and quintuple windows and concluded that differences in energy need of similar cases with different glazing models reached 1.9 and 6.4 kWh/m2 in space heating and cooling needs respectively. Significant relative differences in heating and cooling were up to 14% and 40% respectively. Largest differences appeared with triple glazing and smallest with quadruple glazing. Compared to detailed window models standard triple and quadruple glazing models resulted in lower heating and higher cooling needs, whereas in case of quintuple windows the results were the opposite.

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Comparison of simplified and detailed window models in office building energy simulations

Abstract

Keywords

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