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The water cost effect of hybrid-parallel condensing systems in the thermo-economical performance of solar tower plants

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorFernández Torrijos, María
dc.contributor.authorMarugán Cruz, Carolina
dc.contributor.authorSobrino Fernández, Celia
dc.contributor.authorSantana Santana, Domingo José
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2022-02-16T12:06:55Z
dc.date.available2022-02-16T12:06:55Z
dc.date.issued2022-02-05
dc.description.abstractThe importance of considering the water price in the analysis of the impact of dry versus hybrid condensing systems in the thermo economical performance of solar tower plants was demonstrated in this work. The dry condensing system consists of several induced-draft air-cooled condenser cells (ACCs) and the hybrid system consists of a parallel system where the condensing steam is split between the ACCs and a surface steam condenser where circulating water is cooled in a wet mechanical-draft cooling tower. The influence of the operating parameters of either the dry or wet cooling systems on the cooling load and fan power consumption were studied. Then, for a given condensing system (a system with a defined number of installed ACCs units and cooling tower units) and given the dry-air and wet-bulb air temperatures, the operating parameters were optimized to maximize the revenues of the power plant. This optimization depends on the water-to-electricity price ratio 𝑅, showing that at low ambient temperature when this ratio increases it is not profitable to turn on the cooling towers since the water cost is not counterbalanced by the higher cycle efficiency obtained with the lower condensation temperature. Finally, the annual operation and the LCOE and NPV of the CSP plant located in Dunhuang were analyzed for both dry and hybrid condensing systems with different number of ACCs and wet towers, showing that the most cost-effective configuration is the 16 ACCs with 3 wet cooling towers for water-to-electricity price ratio 𝑅 = 4 ($/m3)/($/kWhe) and 𝑅 = 5 ($/m3)/($/kWhe), but for 𝑅 = 10($/m3)/($/kWhe), the best option is with only 2 wet towers.en
dc.description.sponsorshipThis research is partially funded by the Spanish government under the project RTI2018-096664-B-C21 (MICINN/FEDER, UE).en
dc.format.extent21
dc.identifier.bibliographicCitationFernández-Torrijos, M., Marugán-Cruz, C., Sobrino, C., & Santana, D. (2022). The water cost effect of hybrid-parallel condensing systems in the thermo-economical performance of solar tower plants. Applied Thermal Engineering, 202, 117801.en
dc.identifier.doihttps://doi.org/10.1016/j.applthermaleng.2021.117801
dc.identifier.issn1359-4311
dc.identifier.publicationfirstpage117801-1
dc.identifier.publicationlastpage117801-21
dc.identifier.publicationtitleApplied Thermal Engineeringen
dc.identifier.publicationvolume202
dc.identifier.urihttps://hdl.handle.net/10016/34142
dc.identifier.uxxiAR/0000029196
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. RTI2018-096664-B-C21es
dc.relation.projectIDAT-2021
dc.rights© 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaEnergías Renovableses
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.otherHybrid condensing systemen
dc.subject.otherWater consumptionen
dc.subject.otherAir-cooled condenseren
dc.subject.otherWet cooling toweren
dc.subject.otherConcentrating solar energyen
dc.titleThe water cost effect of hybrid-parallel condensing systems in the thermo-economical performance of solar tower plantsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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