Numerical Analysis of the Impact of Thermal Inertia from the Furniture / Indoor Content and Phase Change Materials on the Building Energy Flexibility

Hicham Johra, Per Kvols Heiselberg, Jérôme Le Dréau

Research output: Contribution to conference without publisher/journalPosterResearchpeer-review

Abstract

Many numerical models for building energy simulation assume empty rooms and do not account for the indoor content of occupied buildings. Furnishing elements and indoor items have complicated shapes and are made of various materials. Therefore, most of the people prefer to ignore them. However, this simplification can be problematic for accurate calculation of the transient indoor temperature. This article firstly reviews different solutions to include the indoor content in building models and suggests typical values for its characteristics. Secondly, the paper presents the results of a numerical study investigating the influence of the different types of thermal inertia on buildings energy flexibility. Although the insulation level and thermal mass of a building envelope are the dominant parameters, it appears that indoor content cannot be neglected for lightweight structure building simulations. Finally, it is shown that the integration of phase change materials in wallboards or furniture elements can appreciably improve the energy flexibility of buildings.
Original languageEnglish
Publication date9 Aug 2017
Publication statusPublished - 9 Aug 2017
Event15th IBPSA Conference: Building Simulation 2017 - San Francisco, United States
Duration: 7 Aug 20179 Aug 2017

Conference

Conference15th IBPSA Conference
CountryUnited States
CitySan Francisco
Period07/08/201709/08/2017

Fingerprint

Phase change materials
Numerical analysis
Insulation
Numerical models
Hot Temperature
Temperature

Keywords

  • Furniture
  • Thermal mass
  • thermal inertia
  • Building energy flexibility
  • Phase Change Material

Cite this

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title = "Numerical Analysis of the Impact of Thermal Inertia from the Furniture / Indoor Content and Phase Change Materials on the Building Energy Flexibility",
abstract = "Many numerical models for building energy simulation assume empty rooms and do not account for the indoor content of occupied buildings. Furnishing elements and indoor items have complicated shapes and are made of various materials. Therefore, most of the people prefer to ignore them. However, this simplification can be problematic for accurate calculation of the transient indoor temperature. This article firstly reviews different solutions to include the indoor content in building models and suggests typical values for its characteristics. Secondly, the paper presents the results of a numerical study investigating the influence of the different types of thermal inertia on buildings energy flexibility. Although the insulation level and thermal mass of a building envelope are the dominant parameters, it appears that indoor content cannot be neglected for lightweight structure building simulations. Finally, it is shown that the integration of phase change materials in wallboards or furniture elements can appreciably improve the energy flexibility of buildings.",
keywords = "Furniture, Thermal mass, thermal inertia, Building energy flexibility, Phase Change Material",
author = "Hicham Johra and Heiselberg, {Per Kvols} and {Le Dr{\'e}au}, J{\'e}r{\^o}me",
year = "2017",
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note = "15th IBPSA Conference : Building Simulation 2017 ; Conference date: 07-08-2017 Through 09-08-2017",

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Numerical Analysis of the Impact of Thermal Inertia from the Furniture / Indoor Content and Phase Change Materials on the Building Energy Flexibility. / Johra, Hicham; Heiselberg, Per Kvols; Le Dréau, Jérôme.

2017. Poster presented at 15th IBPSA Conference, San Francisco, United States.

Research output: Contribution to conference without publisher/journalPosterResearchpeer-review

TY - CONF

T1 - Numerical Analysis of the Impact of Thermal Inertia from the Furniture / Indoor Content and Phase Change Materials on the Building Energy Flexibility

AU - Johra, Hicham

AU - Heiselberg, Per Kvols

AU - Le Dréau, Jérôme

PY - 2017/8/9

Y1 - 2017/8/9

N2 - Many numerical models for building energy simulation assume empty rooms and do not account for the indoor content of occupied buildings. Furnishing elements and indoor items have complicated shapes and are made of various materials. Therefore, most of the people prefer to ignore them. However, this simplification can be problematic for accurate calculation of the transient indoor temperature. This article firstly reviews different solutions to include the indoor content in building models and suggests typical values for its characteristics. Secondly, the paper presents the results of a numerical study investigating the influence of the different types of thermal inertia on buildings energy flexibility. Although the insulation level and thermal mass of a building envelope are the dominant parameters, it appears that indoor content cannot be neglected for lightweight structure building simulations. Finally, it is shown that the integration of phase change materials in wallboards or furniture elements can appreciably improve the energy flexibility of buildings.

AB - Many numerical models for building energy simulation assume empty rooms and do not account for the indoor content of occupied buildings. Furnishing elements and indoor items have complicated shapes and are made of various materials. Therefore, most of the people prefer to ignore them. However, this simplification can be problematic for accurate calculation of the transient indoor temperature. This article firstly reviews different solutions to include the indoor content in building models and suggests typical values for its characteristics. Secondly, the paper presents the results of a numerical study investigating the influence of the different types of thermal inertia on buildings energy flexibility. Although the insulation level and thermal mass of a building envelope are the dominant parameters, it appears that indoor content cannot be neglected for lightweight structure building simulations. Finally, it is shown that the integration of phase change materials in wallboards or furniture elements can appreciably improve the energy flexibility of buildings.

KW - Furniture

KW - Thermal mass

KW - thermal inertia

KW - Building energy flexibility

KW - Phase Change Material

M3 - Poster

ER -