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dc.contributor.authorArias Montenegro, Francisco Javier
dc.contributor.authorHeras Jiménez, Salvador Augusto de las
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.identifier.citationArias, Francisco J. , De las Heras, Salvador. Hydrokinetic energy conversión using compliant surfaces. “International journal of energy research”, 2019, vol. 43, núm. 9, p. 4427-4435
dc.description.abstractIn this work, consideration is given for a novel technology based on the use of compliant surfaces (membranes) for hydrokinetic energy conversion (HEC) from residual waters where the use of traditional turbines is either not possible or strongly limited. Here, residual waters are understood as waters with a small total pressure difference relative to the surrounding environment that are not suitable to be turbined. Such waters encompass not only domestic or industrial waste water before being discharged into the sewer but also typical flows found in river waterways of small depth or even postturbined water. In summary, the proposed technology is based on the deliberated bifurcation of residual water into two streams separated by a compliant surface or membrane that equalizes the static pressure in both streams and also generates a relative velocity between them. As a result, Taylor instabilities translate into the oscillatory motion of the membrane, which can be transformed into output power. Utilizing linearized flow theory, an analytical expression for the extractable density power is derived. Experiments are carried out for a rectangular membrane, and the data obtained are quantitatively and qualitatively in good agreement with the theoretical model, where it is found that for typical residual water with a velocity of approximately 1.7 m/s, the output power density is on the order of 30 mW/cm2 based on the area of the membrane. Additional research and development is required to arrive at a reliable practical and commercial design
dc.format.extent9 p.
dc.subjectÀrees temàtiques de la UPC::Energies::Tecnologia energètica
dc.subject.lcshEnergy harvesting
dc.subject.lcshEnergy conversion
dc.subject.otherEnergy harvesting
dc.subject.otherHydrokinetic energy conversion (HEC)
dc.subject.otherResidual waters
dc.titleHydrokinetic energy conversion using compliant surfaces
dc.subject.lemacAigües residuals
dc.subject.lemacEnergia -- Captació
dc.subject.lemacEnergia -- Conversió
dc.contributor.groupUniversitat Politècnica de Catalunya. SIC - Sistemes Intel·ligents de Control
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorArias, F.J.; De Las Heras, S.A.
upcommons.citation.publicationNameInternational journal of energy research

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