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dc.contributor.authorAmine Hachicha, Ahmed
dc.contributor.authorRodríguez Pérez, Ivette María
dc.contributor.authorCastro González, Jesús
dc.contributor.authorOliva Llena, Asensio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.identifier.citationAmine Hachicha, A. [et al.]. Numerical simulation of wind flow around a parabolic trough solar collector. "Applied energy", 01 Juliol 2013, vol. 107, p. 426-437.
dc.description.abstractThe use of parabolic trough solar technology in solar power plants has been increased in recent years. Such devices are located in open terrain and can be the subject of strong winds. As a result, the stability of these devices to track accurately the sun and the convection heat transfer from the receiver tube could be affected. In this paper, a detailed numerical aerodynamic and heat transfer model based on Large Eddy Simulations (LES) modelling for these equipments is presented. First, the model is verified on a circular cylinder in a cross-flow. The drag forces and the heat transfer coefficients are then validated with available experimental measurements. After that, simulations are performed on an Eurotrough solar collector to study the fluid flow and heat transfer around the solar collector and its receiver. Computations are carried out for a Reynolds number of Re W = 3.6 x 10(5) (based on the aperture) and for various pitch angles (h=0,45,90, 135, 80, 270). The aerodynamic coefficients are calculated around the solar collector and validated with measurements performed in wind tunnel tests. Instantaneous velocity field is also studied and compared to aerodynamic coefficients for different pitch angles. The time-averaged flow is characterised by the formation of several recirculation regions around the solar collector and the receiver tube depending on the pitch angle. The study also presents a comparative study of the heat transfer coefficients around the heat collector element with the circular cylinder in a cross-flow and the effect of the pitch angle on the Nusselt number.
dc.format.extent12 p.
dc.subjectÀrees temàtiques de la UPC::Física::Termodinàmica::Física de la transmissió de la calor
dc.subjectÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
dc.subjectÀrees temàtiques de la UPC::Energies::Energia eòlica
dc.subject.lcshWind power
dc.subject.lcshSolar energy
dc.titleNumerical simulation of wind flow around a parabolic trough solar collector
dc.subject.lemacCalor -- Transmissió
dc.subject.lemacEnergia solar
dc.subject.lemacEnergia eòlica
dc.contributor.groupUniversitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorAmine Hachicha, A.; Rodriguez, I.; Castro, J.; Oliva, A.
upcommons.citation.publicationNameApplied energy

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