Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients

[EN]The actual building energy performance essentially depends on the building occupant's behaviour, the real performance of the installed energy systems and the in-use performance of the building envelope. The thermal performance characterization of in-use building envelopes, based on monitore...

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Autores: Uriarte Pérez de Nanclares, Irati, Ercoreca González, Aitor, Legorburu, Asier, Martín Escudero, Koldobika, Giraldo Soto, Catalina, Odriozola Maritorena, Moisés
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/54255
Acceso en línea:http://hdl.handle.net/10810/54255
Access Level:acceso abierto
Palabra clave:energy performance gap
heat loss coefficient (HLC)
transmission (UA value) and infiltration (Cv) heat loss coefficient
metabolic CO2 decay
decoupling HLC
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spelling Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficientsUriarte Pérez de Nanclares, IratiErcoreca González, AitorLegorburu, AsierMartín Escudero, KoldobikaGiraldo Soto, CatalinaOdriozola Maritorena, Moisésenergy performance gapheat loss coefficient (HLC)transmission (UA value) and infiltration (Cv) heat loss coefficientmetabolic CO2 decaydecoupling HLC[EN]The actual building energy performance essentially depends on the building occupant's behaviour, the real performance of the installed energy systems and the in-use performance of the building envelope. The thermal performance characterization of in-use building envelopes, based on monitored data, represents a crucial step towards bridging the gap between the designed and as-built energy performance of buildings. The main indicator to analyse the performance gap of building envelopes is the Heat Loss Coefficient (HLC); when measured, it commonly shows considerable differences when compared with the design value. This research goes further and proposes a method, based on monitored data from in-use buildings, for the decoupling of the HLC of in-use buildings into its transmission (UA) and infiltration (C-v) heat loss coefficients, in order to identify the origin of the heat losses. The identification of this origin will facilitate the reduction of the performance gap. Therefore, a multi-storey occupied office building of the University of the Basque Country has been monitored and analysed, where the in-use HLC for each floor and for the whole building have already been estimated using an average method. Then, based on the ASTM D6245-18 Standard, the decay method of the metabolic CO2 of the building's occupants has been successfully applied in this paper to obtain the Air Change per Hour (ACH) rates due to infiltrations. These ACH values have been used to decouple the estimated HLC values into their transmission and infiltration parts.This work was supported by the Spanish Ministry of Science, Inno-vation and Universities and the European Regional Development Fund (grant number RTI2018-096296-B-C22) through the MONITHERM project 'Investigation of monitoring techniques of occupied buildings for their thermal characterization and methodology to identify their key performance indicators', project reference: RTI2018-096296-B-C22 (MCIU/AEI/FEDER, UE) . The corresponding author also acknowledges the support provided by the Education Department of the Basque Gov-ernment through a scholarship granted to her to complete her PhD degree.Elsevier202120212021info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/54255reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MICINN/RTI2018-096296-B-C22/info:eu-repo/grantAgreement/MICINN/RTI2018-096296-B-C22/https://www.sciencedirect.com/science/article/pii/S2352710221004496?via%3Dihubinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2021 The Author(s). This is an open access article under the CC BY-NC-ND licenseAtribución-NoComercial-SinDerivadas 3.0 Españaoai:addi.ehu.eus:10810/542552026-06-18T09:23:17Z
dc.title.none.fl_str_mv Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
title Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
spellingShingle Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
Uriarte Pérez de Nanclares, Irati
energy performance gap
heat loss coefficient (HLC)
transmission (UA value) and infiltration (Cv) heat loss coefficient
metabolic CO2 decay
decoupling HLC
title_short Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
title_full Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
title_fullStr Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
title_full_unstemmed Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
title_sort Decoupling the heat loss coefficient of an in-use office building into its transmission and infiltration heat loss coefficients
dc.creator.none.fl_str_mv Uriarte Pérez de Nanclares, Irati
Ercoreca González, Aitor
Legorburu, Asier
Martín Escudero, Koldobika
Giraldo Soto, Catalina
Odriozola Maritorena, Moisés
author Uriarte Pérez de Nanclares, Irati
author_facet Uriarte Pérez de Nanclares, Irati
Ercoreca González, Aitor
Legorburu, Asier
Martín Escudero, Koldobika
Giraldo Soto, Catalina
Odriozola Maritorena, Moisés
author_role author
author2 Ercoreca González, Aitor
Legorburu, Asier
Martín Escudero, Koldobika
Giraldo Soto, Catalina
Odriozola Maritorena, Moisés
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv energy performance gap
heat loss coefficient (HLC)
transmission (UA value) and infiltration (Cv) heat loss coefficient
metabolic CO2 decay
decoupling HLC
topic energy performance gap
heat loss coefficient (HLC)
transmission (UA value) and infiltration (Cv) heat loss coefficient
metabolic CO2 decay
decoupling HLC
description [EN]The actual building energy performance essentially depends on the building occupant's behaviour, the real performance of the installed energy systems and the in-use performance of the building envelope. The thermal performance characterization of in-use building envelopes, based on monitored data, represents a crucial step towards bridging the gap between the designed and as-built energy performance of buildings. The main indicator to analyse the performance gap of building envelopes is the Heat Loss Coefficient (HLC); when measured, it commonly shows considerable differences when compared with the design value. This research goes further and proposes a method, based on monitored data from in-use buildings, for the decoupling of the HLC of in-use buildings into its transmission (UA) and infiltration (C-v) heat loss coefficients, in order to identify the origin of the heat losses. The identification of this origin will facilitate the reduction of the performance gap. Therefore, a multi-storey occupied office building of the University of the Basque Country has been monitored and analysed, where the in-use HLC for each floor and for the whole building have already been estimated using an average method. Then, based on the ASTM D6245-18 Standard, the decay method of the metabolic CO2 of the building's occupants has been successfully applied in this paper to obtain the Air Change per Hour (ACH) rates due to infiltrations. These ACH values have been used to decouple the estimated HLC values into their transmission and infiltration parts.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/54255
url http://hdl.handle.net/10810/54255
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN/RTI2018-096296-B-C22/
info:eu-repo/grantAgreement/MICINN/RTI2018-096296-B-C22/
https://www.sciencedirect.com/science/article/pii/S2352710221004496?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
© 2021 The Author(s). This is an open access article under the CC BY-NC-ND license
Atribución-NoComercial-SinDerivadas 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
© 2021 The Author(s). This is an open access article under the CC BY-NC-ND license
Atribución-NoComercial-SinDerivadas 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,228081

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