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Effect of wall merging on a simplified building energy model: Accuracy vs number of equations

Abstract : In many countries, ambitious strategies and policies have been deployed to reduce building energy consumption. The method usually advised by standards is the building energy simulation with a large choice of software as TrnSys or EnergyPlus. These dynamic simulation tools are widely used and their results are reliable. However, their major drawback is their lack of flexibility and their complexity with respect to the source code. Moreover, these tools feature exhaustive descriptions of buildings' thermal behaviour, which can be time- consuming when such a degree of accuracy is not required. In this context, we chose to introduce our in-house model. Thus, we give in this article a brief description of this model. Then, we present a comparison and a validation of this model with the numerical software EnergyPlus 011 both small and high insulation monozone buildings. Moreover, we propose to study the effect of merging walls 011 the accuracy and the computation time.
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Conference papers
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https://hal-cea.archives-ouvertes.fr/cea-01844710
Contributor : Léna Le Roy <>
Submitted on : Thursday, July 19, 2018 - 3:57:59 PM
Last modification on : Monday, February 10, 2020 - 6:14:14 PM

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  • HAL Id : cea-01844710, version 1

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A. Foucquier, A. Brun, G.A. Faggianelli, F. Suard. Effect of wall merging on a simplified building energy model: Accuracy vs number of equations. 13th Conference of the International Building Performance Simulation Association, BS 2013, Aug 2013, Chambery, France. pp.3161-3168. ⟨cea-01844710⟩

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