Improving the efficiency of gas turbine systems with volumetric solar receivers

Petrakopoulou, Foteini Konstantina; Sánchez Delgado, Sergio; Marugán Cruz, Carolina; Santana Santana, Domingo José

Publication:
Improving the efficiency of gas turbine systems with volumetric solar receivers

dc.affiliation.dpto	UC3M. Departamento de Ingeniería Térmica y de Fluidos	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sostenible	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticos	es
dc.contributor.author	Petrakopoulou, Foteini Konstantina
dc.contributor.author	Sánchez Delgado, Sergio
dc.contributor.author	Marugán Cruz, Carolina
dc.contributor.author	Santana Santana, Domingo José
dc.contributor.funder	European Commission	en
dc.contributor.funder	Ministerio de Economía y Competitividad (España)	es
dc.date.accessioned	2021-04-30T09:49:23Z
dc.date.available	2021-04-30T09:49:23Z
dc.date.issued	2017-10-01
dc.description.abstract	The combustion process of gas turbine systems is typically associated with the highest thermodynamic inefficiencies among the system components. A method to increase the efficiency of a combustor and, consequently that of the gas turbine, is to increase the temperature of the entering combustion air. This measure reduces the consumption of fuel and improves the environmental performance of the turbine. This paper studies the incorporation of a volumetric solar receiver into existing gas turbines in order to increase the temperature of the inlet combustion air to 800 °C and 1000 °C. For the first time, detailed thermodynamic analyses involving both energy and exergy principles of both small-scale and large-scale hybrid (solar-combined cycle) power plants including volumetric receivers are realized. The plants are based on real gas turbine systems, the base operational characteristics of which are derived and reported in detail. It is found that the indications obtained from the energy and exergy analyses differ. The addition of the solar plant achieves an increase in the exergetic efficiency when the conversion of solar radiation into thermal energy (i.e., solar plant efficiency) is not accounted for in the definition of the overall plant efficiency. On the other hand, it is seen that it does not have a significant effect on the energy efficiency. Nevertheless, when the solar efficiency is included in the definition of the overall efficiency of the plants, the addition of the solar receiver always leads to an efficiency reduction. It is found that the exergy efficiency of the combustion chamber depends on the varying air-to-fuel ratio and, in most cases, it is maximized somewhere between the applied inlet combustion air temperatures of 800 °C and 1000 °C.	en
dc.format.extent	14
dc.identifier.bibliographicCitation	Petrakopoulou, F., Sánchez-Delgado, S., Marugán-Cruz, C. & Santana, D. (2017). Improving the efficiency of gas turbine systems with volumetric solar receivers. Energy Conversion and Management, vol. 149, pp. 579–592.	en
dc.identifier.doi	https://doi.org/10.1016/j.enconman.2017.07.058
dc.identifier.issn	0196-8904
dc.identifier.publicationfirstpage	579
dc.identifier.publicationlastpage	592
dc.identifier.publicationtitle	Energy Conversion and Management	en
dc.identifier.publicationvolume	149
dc.identifier.uri	https://hdl.handle.net/10016/32516
dc.identifier.uxxi	AR/0000020533
dc.language.iso	eng
dc.publisher	Elsevier	en
dc.relation.projectID	info:eu-repo/grantAgreement/EC/PCOFUND-GA-2012-600371
dc.relation.projectID	Gobierno de España. COFUND 2014-51509	es
dc.relation.projectID	Gobierno de España. ENE2014-54942-R	es
dc.relation.projectID	Gobierno de España. ENE2015-69486-R	es
dc.rights	© 2017 Elsevier Ltd.	en
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 España	*
dc.rights.accessRights	open access
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es/	*
dc.subject.eciencia	Energías Renovables	es
dc.subject.other	Exergy analysis	en
dc.subject.other	Solar energy	en
dc.subject.other	Volumetric solar receiver	en
dc.subject.other	Gas turbines	en
dc.subject.other	Combined-cycle power plant	en
dc.subject.other	Hybrid plants	en
dc.title	Improving the efficiency of gas turbine systems with volumetric solar receivers	en
dc.type	research article	*
dc.type.hasVersion	AM	*
dspace.entity.type	Publication