Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks

15 figures, 6 tables.

Detalles Bibliográficos
Autores: Remacha, Pilar, Tizné, Eduardo, Pina, Antonio, Barroso Estébanez, Jorge, Muelas, Álvaro, Ballester, Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/381668
Acceso en línea:http://hdl.handle.net/10261/381668
Access Level:acceso abierto
Palabra clave:Hydrogen/natural gas blend
Gas leaks
Flammable atmosphere
Explosion risk
Orifice flow
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
id ES_640cfbc4ff3543c135728006ae834530
oai_identifier_str oai:digital.csic.es:10261/381668
network_acronym_str ES
network_name_str España
repository_id_str
spelling Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaksRemacha, PilarTizné, EduardoPina, AntonioBarroso Estébanez, JorgeMuelas, ÁlvaroBallester, JavierHydrogen/natural gas blendGas leaksFlammable atmosphereExplosion riskOrifice flowhttp://metadata.un.org/sdg/7Ensure access to affordable, reliable, sustainable and modern energy for all15 figures, 6 tables.This study addresses the potential impact of hydrogen addition to natural gas (NG) on the formation of flammable atmospheres due to small gas leaks. First, the effect of hydrogen blending on leak rate in realistic situations is estimated with an alternative flow model validated with experimental data for a wide range of gases and pressures on real and manufactured leaking coupons. Second, the temporal evolution of gas concentration in ventilated rooms and the time to reach flammable conditions is predicted for NG/hydrogen blends, showing that hydrogen addition leads to faster gas build-up. This may have practical consequences, for example, on required response times to attend emergency calls due to gas leakages. In general, hydrogen addition results in a faster formation of flammable atmospheres, but differences with respect to natural gas are less severe than expected from the usual ideal flow model, which tends to overestimate leak rates and may lead to a too conservative assessment of actual behaviors in most practical situations.The authors gratefully acknowledge the financial support received from the Spanish Gas Association (SEDIGAS) and from Nedgia S.A. through several collaboration projects, which were instrumental to develop the experimental facilities and to generate a part of the results reported in this work. This work was partially supported by the Spanish Ministry of Science, Innovation and Universities (MICIU), Agencia Estatal de Investigación (AEI) and “ESF Investing in your future” [project no.: PID2022-140620OB-I00 funded by MICIU/AEI/10.13039/501100011033].Peer reviewedElsevierAsociación Española del GasNaturgyMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionRemacha, Pilar [0000-0001-9446-8461]Pina, Antonio [0000-0002-3868-6197]Barroso Estébanez, Jorge [0000-0002-0063-1318]Muelas, Álvaro [0000-0003-1337-0310]Ballester, Javier [0000-0003-2863-4681]Ballester, Javier [ballester@unizar.es]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/vnd.ms-excelhttp://hdl.handle.net/10261/381668reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-140620OB-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.ijhydene.2025.01.253http://dx.doi.org/10.1016/j.ijhydene.2025.01.253Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3816682026-05-22T06:33:51Z
dc.title.none.fl_str_mv Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
title Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
spellingShingle Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
Remacha, Pilar
Hydrogen/natural gas blend
Gas leaks
Flammable atmosphere
Explosion risk
Orifice flow
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
title_short Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
title_full Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
title_fullStr Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
title_full_unstemmed Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
title_sort Impact of hydrogen blending on the formation of flammable atmospheres in enclosed spaces due to gas leaks
dc.creator.none.fl_str_mv Remacha, Pilar
Tizné, Eduardo
Pina, Antonio
Barroso Estébanez, Jorge
Muelas, Álvaro
Ballester, Javier
author Remacha, Pilar
author_facet Remacha, Pilar
Tizné, Eduardo
Pina, Antonio
Barroso Estébanez, Jorge
Muelas, Álvaro
Ballester, Javier
author_role author
author2 Tizné, Eduardo
Pina, Antonio
Barroso Estébanez, Jorge
Muelas, Álvaro
Ballester, Javier
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Asociación Española del Gas
Naturgy
Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
European Commission
Remacha, Pilar [0000-0001-9446-8461]
Pina, Antonio [0000-0002-3868-6197]
Barroso Estébanez, Jorge [0000-0002-0063-1318]
Muelas, Álvaro [0000-0003-1337-0310]
Ballester, Javier [0000-0003-2863-4681]
Ballester, Javier [ballester@unizar.es]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Hydrogen/natural gas blend
Gas leaks
Flammable atmosphere
Explosion risk
Orifice flow
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
topic Hydrogen/natural gas blend
Gas leaks
Flammable atmosphere
Explosion risk
Orifice flow
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
description 15 figures, 6 tables.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/381668
url http://hdl.handle.net/10261/381668
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-140620OB-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.ijhydene.2025.01.253
http://dx.doi.org/10.1016/j.ijhydene.2025.01.253
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/vnd.ms-excel
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409617690230784
score 15,812455

Similares en LA Referencia