Assessment of power and hydrogen production performance of an integrated system based on middle-grade geothermal source and solar energy

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dc.contributor.authorAtız, Ayhan
dc.contributor.authorKarakılçık, Hatice
dc.contributor.authorErden, Mustafa
dc.contributor.authorKarakılçık, Mehmet
dc.date.accessioned2021-02-19T21:16:23Z
dc.date.available2021-02-19T21:16:23Z
dc.date.issued2021
dc.departmentALKÜ
dc.description.abstractIn this study, power and hydrogen production performance of an integrated system is investigated. The system consists of an organic Rankine cycle (ORC), parabolic trough solar collectors (PTSCs) having a surface area of 545 m(2), middle-grade geothermal source (MGGS), cooling tower and proton exchange membrane (PEM). The final product of this system is hydrogen that produced via PEM. For this purpose, the fluid temperature of the geothermal source is upgraded by the solar collectors to drive the ORC. To improve the electricity generation efficiency, four working fluids namely n-butane, n-pentane, n-hexane, and cyclohexane are tried in the ORC. The mass flow rate of each working fluid is set as 0.1, 0.2, 0.3, 0.4 kg/s and calculations are made for 16 different situations (four types of working fluids and four different mass flow rates for each). As a result, n-butane with a mass flow rate of 0.4 kg/s is found to be the best option. The average electricity generation is 66.02 kW between the hours of 11(00)-13(00). The total hydrogen production is 9807.1 g for a day. The energy and exergy efficiency is calculated to be 5.85% and 8.27%, respectively. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2020.10.016
dc.identifier.endpage288en_US
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage272en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2020.10.016
dc.identifier.urihttps://hdl.handle.net/20.500.12868/405
dc.identifier.volume46en_US
dc.identifier.wosWOS:000605110100022
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMiddle-grade geothermal source
dc.subjectParabolic trough solar collectors
dc.subjectOrganic rankine cycle
dc.subjectPower generation
dc.subjectHydrogen production
dc.titleAssessment of power and hydrogen production performance of an integrated system based on middle-grade geothermal source and solar energy
dc.typeArticle

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