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Thermohydraulic analysis of single phase heat transfer fluids in CSP solar receivers

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dc.contributor.author Conroy, Tim
dc.contributor.author Collins, Maurice N.
dc.contributor.author Fisher, James
dc.contributor.author Grimes, Ronan
dc.date.accessioned 2018-06-18T15:58:44Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10344/6904
dc.description peer-reviewed en_US
dc.description.abstract Theoretical modelling techniques are used to compare the thermohydraulic performance and thermal storage characteristics of molten salt, liquid sodium, and lead-bismuth in a CSP solar receiver concept. For molten salt, the performance of a number of heat transfer augmentation techniques are also studied. Sodium and lead-bismuth both yield excellent receiver thermal efficiency (max ∼92%), when compared to molten salt (max ∼90%), due to high thermal conductivity values that lead to large heat transfer coefficients. A high pressure drop penalty for lead-bismuth largely offsets its thermal performance gain over molten salt, however sodium retains its advantage as a receiver working fluid with a low pumping parasitic. The implementation of heat transfer enhancement techniques can significantly improve the performance of a molten salt receiver when compared to smooth tube designs. The low specific heat capacity and high unit cost of lead-bismuth is prohibitive towards its use as a storage medium in storage-integrated plant designs, resulting in very high LCOE values. Sodium is the most economically feasible fluid for systems with low storage (<3 h), however the low per-unit cost and high specific heat capacity of molten salt means that this is the most effective working fluid in systems with larger storage requirements. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Renewable Energy;129, Part A, pp. 150-167
dc.relation.uri https://doi.org/10.1016/j.renene.2018.05.101
dc.rights This is the author’s version of a work that was accepted for publication in Renewable Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Renewable Energy, 2018, 129, Part A, pp. 150-167, https://doi.org/10.1016/j.renene.2018.05.101 en_US
dc.subject concentrated solar power en_US
dc.subject solar receiver en_US
dc.subject molten salt en_US
dc.subject liquid metals en_US
dc.subject thermohydraulic performance en_US
dc.subject thermal storage en_US
dc.title Thermohydraulic analysis of single phase heat transfer fluids in CSP solar receivers en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.renene.2018.05.101
dc.contributor.sponsor IRC en_US
dc.date.embargoEndDate 2020-06-02
dc.embargo.terms 2020-06-02 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2869345


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