Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface

Practices to avoid thermal bridges in the building shell, consists one of the key elements in the comprehensive assessment of the energy behaviour of buildings. As we are moving fast to the era of nearly zero energy buildings, both the use of non-invasive measurement techniques as well as the use of...

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Autores principales:	Justas Terentjevas, Monika Šadauskaitė, Jolanta Šadauskienė, Juozas Ramanauskas, Andrius Buska, Paris A. Fokaides
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Thermal bridge Point thermal bridge Window Numerical analysis THERM HEAT3 Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/b338f915e46e46958692e8a1dfc86ea4
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id	oai:doaj.org-article:b338f915e46e46958692e8a1dfc86ea4
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spelling	oai:doaj.org-article:b338f915e46e46958692e8a1dfc86ea42021-11-06T04:28:53ZNumerical investigation of buildings point thermal bridges observed on window-thermal insulation interface2214-509510.1016/j.cscm.2021.e00768https://doaj.org/article/b338f915e46e46958692e8a1dfc86ea42021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214509521002837https://doaj.org/toc/2214-5095Practices to avoid thermal bridges in the building shell, consists one of the key elements in the comprehensive assessment of the energy behaviour of buildings. As we are moving fast to the era of nearly zero energy buildings, both the use of non-invasive measurement techniques as well as the use of analytical and numerical models, have intensified research and substantiated best practices around this interesting issue. The sole criterion of the energy assessment of thermal bridges is the reduction of the heat losses, thus heat transfer analysis dominates the field.This short technical note presents and analyses the thermal behaviour of point thermal bridges, observed in areas of higher thermal transmittance at the joints of windows and supporting structures through different types of fasteners. Specifically, the method of direct support of windows in a layer of stone wool is considered, and the energy performance of three alternative ways of supporting the construction is examined. The heat transfer assessment of the investigated solutions is conducted with the use of numerical analysis, performed with the use of two analytical tools (THERM and HEAT3), in two- and three dimensional domains. The work concludes with substantiated suggestions in relation to the solutions that are proposed, always guided by the reduction in energy consumption. The paper aspires to provide informed answers to engineers and researchers in the field of energy efficiency of buildings, thus creating the field for future developments in the field of point thermal point bridges in window.Justas TerentjevasMonika ŠadauskaitėJolanta ŠadauskienėJuozas RamanauskasAndrius BuskaParis A. FokaidesElsevierarticleThermal bridgePoint thermal bridgeWindowNumerical analysisTHERMHEAT3Materials of engineering and construction. Mechanics of materialsTA401-492ENCase Studies in Construction Materials, Vol 15, Iss , Pp e00768- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Thermal bridge Point thermal bridge Window Numerical analysis THERM HEAT3 Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Thermal bridge Point thermal bridge Window Numerical analysis THERM HEAT3 Materials of engineering and construction. Mechanics of materials TA401-492 Justas Terentjevas Monika Šadauskaitė Jolanta Šadauskienė Juozas Ramanauskas Andrius Buska Paris A. Fokaides Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
description	Practices to avoid thermal bridges in the building shell, consists one of the key elements in the comprehensive assessment of the energy behaviour of buildings. As we are moving fast to the era of nearly zero energy buildings, both the use of non-invasive measurement techniques as well as the use of analytical and numerical models, have intensified research and substantiated best practices around this interesting issue. The sole criterion of the energy assessment of thermal bridges is the reduction of the heat losses, thus heat transfer analysis dominates the field.This short technical note presents and analyses the thermal behaviour of point thermal bridges, observed in areas of higher thermal transmittance at the joints of windows and supporting structures through different types of fasteners. Specifically, the method of direct support of windows in a layer of stone wool is considered, and the energy performance of three alternative ways of supporting the construction is examined. The heat transfer assessment of the investigated solutions is conducted with the use of numerical analysis, performed with the use of two analytical tools (THERM and HEAT3), in two- and three dimensional domains. The work concludes with substantiated suggestions in relation to the solutions that are proposed, always guided by the reduction in energy consumption. The paper aspires to provide informed answers to engineers and researchers in the field of energy efficiency of buildings, thus creating the field for future developments in the field of point thermal point bridges in window.
format	article
author	Justas Terentjevas Monika Šadauskaitė Jolanta Šadauskienė Juozas Ramanauskas Andrius Buska Paris A. Fokaides
author_facet	Justas Terentjevas Monika Šadauskaitė Jolanta Šadauskienė Juozas Ramanauskas Andrius Buska Paris A. Fokaides
author_sort	Justas Terentjevas
title	Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
title_short	Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
title_full	Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
title_fullStr	Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
title_full_unstemmed	Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
title_sort	numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b338f915e46e46958692e8a1dfc86ea4
work_keys_str_mv	AT justasterentjevas numericalinvestigationofbuildingspointthermalbridgesobservedonwindowthermalinsulationinterface AT monikasadauskaite numericalinvestigationofbuildingspointthermalbridgesobservedonwindowthermalinsulationinterface AT jolantasadauskiene numericalinvestigationofbuildingspointthermalbridgesobservedonwindowthermalinsulationinterface AT juozasramanauskas numericalinvestigationofbuildingspointthermalbridgesobservedonwindowthermalinsulationinterface AT andriusbuska numericalinvestigationofbuildingspointthermalbridgesobservedonwindowthermalinsulationinterface AT parisafokaides numericalinvestigationofbuildingspointthermalbridgesobservedonwindowthermalinsulationinterface
_version_	1718443936876331008

Numerical investigation of buildings point thermal bridges observed on window-thermal insulation interface

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