Impact of fluid substitution on the performance of an axial compressor blade cascade working with supercritical carbon dioxide

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dc.contributor.authorTello, Carlos
dc.contributor.authorMuñoz, Alejandro
dc.contributor.authorSánchez, David
dc.contributor.authorKipouros, Timoleon
dc.contributor.authorSavill, Mark
dc.date.accessioned2020-01-27T12:13:58Z
dc.date.available2020-01-27T12:13:58Z
dc.date.issued2019-12-11
dc.description.abstractRecent research on turbomachinery design and analysis for supercritical Carbon Dioxide (sCO2) power cycles has relied on Computational Fluid Dynamics. This has produced a large number of works whose approach is mostly case-specific, rather than of general application to sCO2 turbomachinery design. As opposed to such approach, this work explores the aerodynamic performance of compressor blade cascades operating on air and supercritical CO2 with the main objective to evaluate the usual aerodynamic parameters of the cascade for variable boundary conditions and geometries, enabling 'full' or 'partial' similarity. The results present both the global performance of the cascades and certain features of the local flow (trailing edge and wake). The discussion also highlights the mechanical limitations of the analysis (forces exerted on the blades), which is the main restriction to applying similarity laws to extrapolate the experi- ence gained through decades of work on air turbomachinery to the new working fluid. This approach is a step towards the understanding and appropriate formulation of a multi-objective optimisation problem for the design of such turbomachinery components where sCO2 is used as the operating fluid. With this objective, the paper aims to identify and analyse what would be expected if a common description of such computational design problems similar to those where air is the working fluid were used.en_UK
dc.identifier.citationTello C, Sánchez D, Muñoz A, et al., (2020) Impact of fluid substitution on the performance of an axial compressor blade cascade working with supercritical carbon dioxide. Journal of Engineering for Gas Turbines and Power, Volume 142, Issue 1, January 2020, Article number 011019, Paper number GTP-19-1625en_UK
dc.identifier.issn0742-4795
dc.identifier.urihttps://doi.org/10.1115/1.4045473
dc.identifier.urihttps://asmedigitalcollection.asme.org/gasturbinespower/article/142/1/011019/1068335/Impact-of-Fluid-Substitution-on-the-Performance-of
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15014
dc.language.isoenen_UK
dc.publisherASMEen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectBladesen_UK
dc.subjectCascades (Fluid dynamics)en_UK
dc.subjectCompressorsen_UK
dc.subjectFluidsen_UK
dc.subjectSupercritical carbon dioxideen_UK
dc.subjectSupercritical carbon dioxideen_UK
dc.subjectDesignen_UK
dc.subjectTurbomachineryen_UK
dc.subjectBoundary-value problemsen_UK
dc.subjectPareto optimizationen_UK
dc.subjectThermodynamic power cyclesen_UK
dc.subjectComputational fluid dynamicsen_UK
dc.titleImpact of fluid substitution on the performance of an axial compressor blade cascade working with supercritical carbon dioxideen_UK
dc.typeArticleen_UK

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