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dc.creatorChacartegui, Ricardoes
dc.creatorMuñoz de Escalona, J.es
dc.creatorBecerra Villanueva, José Antonioes
dc.creatorFernández Morales, Alonsoes
dc.creatorSánchez Martínez, David Tomáses
dc.date.accessioned2020-10-16T11:14:14Z
dc.date.available2020-10-16T11:14:14Z
dc.date.issued2013
dc.identifier.citationChacartegui, R., Muñoz de Escalona, J., Becerra Villanueva, J.A., Fernández Morales, A. y Sánchez Martínez, D.T. (2013). Potential of ORC Systems to Retrofit CHP Plants in Wastewater Treatment Stations. Journal of Sustainable Development of Energy, Water and Environment Systems, 1 (4), 352-374.
dc.identifier.issn1848-9257es
dc.identifier.urihttps://hdl.handle.net/11441/102014
dc.description.abstractWastewater treatment stations take advantage of the biogas produced from sludge in anaerobic digesters to generate electricity (reciprocating gas engines) and heat (cooling water and engine exhaust gases). A fraction of this electricity is used to operate the plant while the remaining is sold to the grid. Heat is almost entirely used to support the endothermic anaerobic digestion and a minimum fraction of it is rejected to the environment at a set of fan coolers. This generic description is applicable to on-design conditions. Nevertheless, the operating conditions of the plant present a large seasonal variation so it is commonly found that the fraction of heat rejected to the atmosphere increases significantly at certain times of the year. Moreover, the heat available in the exhaust gases of the reciprocating engine is at a very high temperature (around 650 ºC), which is far from the temperature at which heat is needed for the digestion of sludge (around 40 ºC in the digesters). This temperature difference offers an opportunity to introduce an intermediate system between the engines and the digesters that makes use of a fraction of the available heat to convert it into electricity. An Organic Rankine Cycle (ORC) with an appropriate working fluid is an adequate candidate for these hot/cold temperature sources. In this paper, the techno-economic effect of adding an Organic Rankine Cycle as the intermediate system of an existing wastewater treatment station is analysed. On this purpose, different working fluids and system layouts have been studied for a reference wastewater treatment station giving rise to optimal systems configurations. The proposed systems yield very promising results with regard to global efficiency and electricity production (thermodynamically and economically).es
dc.formatapplication/pdfes
dc.format.extent23 p.es
dc.language.isoenges
dc.publisherInternational Centre for Sustainable Development of Energy, Water and Environment Systemses
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectCHPes
dc.subjectOrganic Rankine Cyclees
dc.subjectWastewater treatment stationes
dc.titlePotential of ORC Systems to Retrofit CHP Plants in Wastewater Treatment Stationses
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Ingeniería Energéticaes
dc.relation.publisherversionhttp://www.sdewes.org/jsdewes/pi2013.01.0027es
dc.identifier.doi10.13044/j.sdewes.2013.01.0027es
dc.journaltitleJournal of Sustainable Development of Energy, Water and Environment Systemses
dc.publication.volumen1es
dc.publication.issue4es
dc.publication.initialPage352es
dc.publication.endPage374es
dc.identifier.sisius21032531es

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