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dc.contributor.authorAtienza Márquez, Antonio
dc.contributor.authorDominguez-Muñoz, Fernando 
dc.contributor.authorFernandez-Hernandez, Francisco Angel 
dc.contributor.authorCejudo-Lopez, Jose Manuel 
dc.date.accessioned2023-01-24T12:58:47Z
dc.date.available2023-01-24T12:58:47Z
dc.date.issued2022-12-15
dc.identifier.citationAntonio Atienza-Márquez, Fernando Domínguez Muñoz, Francisco Fernández Hernández, José Manuel Cejudo López, Domestic hot water production system in a hospital: Energy audit and evaluation of measures to boost the solar contribution, Energy, Volume 261, Part B, 2022, 125275, ISSN 0360-5442, https://doi.org/10.1016/j.energy.2022.125275.es_ES
dc.identifier.urihttps://hdl.handle.net/10630/25777
dc.description.abstractHospitals consume large quantities of energy to produce hot water and offset the distribution and recirculation thermal losses. This paper analyses a solar thermal system combined with gas boilers for domestic hot water production in a medium-size hospital. The solar contribution to the total demand (27%) is below design expectations (75%), resulting in significant gas consumption. The energy audit conducted in the first part of the paper highlights the vast thermal loss through poorly insulated pipes as the primary cause of the poor solar fraction. This issue is endemic to hot water-intensive buildings. The second part of the paper addresses the techno-economic evaluation of energy retrofit measures to reach a solar fraction of 60%. The simulation results indicate that cost-optimised solutions generally expand the solar caption area by 43–57% and improve insulations to reduce thermal losses by 70%. Depending on carbon taxes, the cost of hot water production would be 31–41 cent-€/kWh, which represents a 15–45% reduction from the current costs. Under stringent climate policies, installing heat pumps may further enhance economic competitiveness. The indicators and charts developed in this work are helpful decision-making tools concerning the energy refurbishment of solar domestic hot water systems.es_ES
dc.description.sponsorshipThe authors acknowledge the Universidad de Málaga and “Programa Operativo FEDER Andalucía 2014–2020″ the financial support of the contract UMA18-FEDERJA-247.Funding for open access charge: Universidad de Málaga / CBUAes_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHospitaleses_ES
dc.subject.otherHospital buildinges_ES
dc.subject.otherDomestic hot water (DHW)es_ES
dc.subject.otherSolar thermales_ES
dc.subject.otherEnergy audites_ES
dc.subject.otherEnergy retrofites_ES
dc.subject.otherTechno-economic analysises_ES
dc.titleDomestic hot water production system in a hospital: Energy audit and evaluation of measures to boost the solar contributiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroEscuela de Ingenierías Industrialeses_ES
dc.identifier.doi10.1016/j.energy.2022.125275.
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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