Wall assemblies U-value calculation in test buildings using constant power heating

Janis Ratnieks; Andris Jakovics; Stanislavs Gendelis

doi:10.1016/j.egypro.2018.07.061

Wall assemblies U-value calculation in test buildings using constant power heating

Janis Ratnieks^*
, Andris Jakovics
, Stanislavs Gendelis

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

13 Citations (Scopus)

Abstract

Building envelopes under various climates behave differently, in this paper the actual thermal transmittance or U-value of five different wall assemblies are evaluated and compared with values, calculated using standard EN ISO 6946. The experiment is carried out in five test buildings with equal spatial orientation, the same ceiling and floor assemblies as well as the same windows and doors mounted in each building. The thermal transmittances for these partitions are assumed to be well known and therefore, by knowing temperature difference and heat sources inside the building, the thermal transmittance of wall assembly can be calculated. It is shown that for small buildings the corner effects are of great importance and therefore a more precise calculation of them are done.

Original language	English
Pages (from-to)	207-213
Number of pages	7
Journal	Energy Procedia
Volume	147
DOIs	https://doi.org/10.1016/j.egypro.2018.07.061
Publication status	Published - 2018
Event	2018 International Scientific Conference on Environmental and Climate Technologies, CONECT 2018 - Riga, Latvia Duration: 16 May 2018 → 18 May 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure
SDG 12 Responsible Consumption and Production

Keywords

U-value
energy efficiency
thermal bridges
thermal mass

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10.1016/j.egypro.2018.07.061

Cite this

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title = "Wall assemblies U-value calculation in test buildings using constant power heating",

abstract = "Building envelopes under various climates behave differently, in this paper the actual thermal transmittance or U-value of five different wall assemblies are evaluated and compared with values, calculated using standard EN ISO 6946. The experiment is carried out in five test buildings with equal spatial orientation, the same ceiling and floor assemblies as well as the same windows and doors mounted in each building. The thermal transmittances for these partitions are assumed to be well known and therefore, by knowing temperature difference and heat sources inside the building, the thermal transmittance of wall assembly can be calculated. It is shown that for small buildings the corner effects are of great importance and therefore a more precise calculation of them are done.",

keywords = "U-value, energy efficiency, thermal bridges, thermal mass",

author = "Janis Ratnieks and Andris Jakovics and Stanislavs Gendelis",

note = "Publisher Copyright: {\textcopyright} 2018 The Authors. Published by Elsevier Ltd.; 2018 International Scientific Conference on Environmental and Climate Technologies, CONECT 2018 ; Conference date: 16-05-2018 Through 18-05-2018",

year = "2018",

doi = "10.1016/j.egypro.2018.07.061",

language = "English",

volume = "147",

pages = "207--213",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Wall assemblies U-value calculation in test buildings using constant power heating

AU - Ratnieks, Janis

AU - Jakovics, Andris

AU - Gendelis, Stanislavs

PY - 2018

Y1 - 2018

N2 - Building envelopes under various climates behave differently, in this paper the actual thermal transmittance or U-value of five different wall assemblies are evaluated and compared with values, calculated using standard EN ISO 6946. The experiment is carried out in five test buildings with equal spatial orientation, the same ceiling and floor assemblies as well as the same windows and doors mounted in each building. The thermal transmittances for these partitions are assumed to be well known and therefore, by knowing temperature difference and heat sources inside the building, the thermal transmittance of wall assembly can be calculated. It is shown that for small buildings the corner effects are of great importance and therefore a more precise calculation of them are done.

AB - Building envelopes under various climates behave differently, in this paper the actual thermal transmittance or U-value of five different wall assemblies are evaluated and compared with values, calculated using standard EN ISO 6946. The experiment is carried out in five test buildings with equal spatial orientation, the same ceiling and floor assemblies as well as the same windows and doors mounted in each building. The thermal transmittances for these partitions are assumed to be well known and therefore, by knowing temperature difference and heat sources inside the building, the thermal transmittance of wall assembly can be calculated. It is shown that for small buildings the corner effects are of great importance and therefore a more precise calculation of them are done.

KW - U-value

KW - energy efficiency

KW - thermal bridges

KW - thermal mass

UR - https://www.scopus.com/pages/publications/85054104782

U2 - 10.1016/j.egypro.2018.07.061

DO - 10.1016/j.egypro.2018.07.061

M3 - Conference article

AN - SCOPUS:85054104782

SN - 1876-6102

VL - 147

SP - 207

EP - 213

JO - Energy Procedia

JF - Energy Procedia

T2 - 2018 International Scientific Conference on Environmental and Climate Technologies, CONECT 2018

Y2 - 16 May 2018 through 18 May 2018

ER -

Wall assemblies U-value calculation in test buildings using constant power heating

Abstract

UN SDGs

Keywords

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