Exploració per autor "Rodríguez Pérez, Ivette María"
Ara es mostren els items 52-71 de 120
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Modular object-oriented methodology for the resolution of molten salt storage tanks for CSP plants
Rodríguez Pérez, Ivette María; Pérez Segarra, Carlos David; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (2013-09)
Article
Accés obertTwo-tank molten salt storages are the most widespread thermal energy storage technology within concentrated solar power plants. In spite of this, there are design aspects such as thermal losses control, optimisation of the ... -
Modular object-oriented methodology for the resolution of molten salt storage tanks for CSP plants
Oliva Llena, Asensio; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Torras Ortiz, Santiago (2012)
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Multi-layered solid-PCM thermocline thermal storage concept for CSP plants. Numerical analysis and perspectives
Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio; Rigola Serrano, Joaquim (2015-03-15)
Article
Accés obertThermocline storage concept has been considered for more than a decade as a possible solution to reduce the huge cost of the storage system in concentrated solar power (CSP) plants. However, one of the drawbacks of this ... -
Multi-layered solid-PCM thermocline thermal storage for CSP. Numerical evaluation of its application in a 50 MWe plant
Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Torras Ortiz, Santiago; Rigola Serrano, Joaquim (2015-09-01)
Article
Accés obertThermocline storage concept is considered as a possible solution to reduce the cost of thermal storage in concentrated solar power (CSP) plants. Recently, a multi-layered solid-PCM (MLSPCM) concept—consisting of a ... -
Non-Oberbeck-Boussinesq effects in a turbulent tall water-filled differentially heated cavity
Kizildag, Deniz; Rodríguez Pérez, Ivette María; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio; Pérez Segarra, Carlos David (Begell House, 2015)
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Accés restringit per política de l'editorialThe present work studies the non-Oberbeck-Boussinesq (NOB) effects in a tall water-filled differentially heated cavity by means of direct numerical simulation. The obtained results reveal significant NOB effects for this ... -
Non-Oberbeck-Boussinesq natural convection in a tall differentially heated cavity
Kizildag, Deniz; Ventosa, Jordi; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2010)
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Accés obertTurbulent flow in a water-filled rectangular parallelepiped tank of an integrated solar collector is analyzed by means of a set of two and three dimensional simulations. The geometry and the working conditions of the ... -
Numerical evaluation of multi-layered solid-PCM thermocline-like tanks as thermal energy storage systems for CSP applications
Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Torras Ortiz, Santiago; Rigola Serrano, Joaquim (2015-05)
Article
Accés obertThe two-tank system is the technology used for thermal energy storage (TES) in current concentrating solar power (CSP) plants. Thermocline storage concept has been considered for more than a decade as a possible solution ... -
Numerical investigation of forced convection heat transfer from a sphere at low Prandtl numbers
Rodríguez Pérez, Ivette María; Campo, Antonio (2023-02)
Article
Accés obertDirect numerical simulations of the flow and forced convective heat transfer around a sphere at Reynolds numbers between 𝑅𝑒 = 500 and 𝑅𝑒 = 1000 are performed. We investigate the effects of the Prandtl number (𝑃 𝑟) ... -
Numerical simulation of a parabolic trough solar collector considering the concentrated energy flux distribution
Amine Hachicha, Ahmed; Rodríguez Pérez, Ivette María; Capdevila Paramio, Roser; Oliva Llena, Asensio (2011)
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Numerical simulation of roughness effects on the flow past a circular cylinder
Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell, Ricard; Oliva Llena, Asensio (Institute of Physics (IOP), 2016)
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Accés obertIn the present work large eddy simulations of the flow past a rough cylinder are performed at a Reynolds number of Re = 4.2 × 105 and an equivalent sand-grain surface roughness height ks = 0.02D. In order to determine the ... -
Numerical simulation of the long-term cooling process applied to a storage tank with an internal gas flue
Hmouda, Imen; Rodríguez Pérez, Ivette María; Bouden, Chiheb (2009)
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Accés obertThe transient cooling of a fluid initially at rest, inside a storage tank with an internal gas flue submitted to heat losses to the ambient is studied. In order to identify the relevant non-dimensional groups that define ... -
Numerical simulation of wind flow around a parabolic trough solar collector
Amine Hachicha, Ahmed; Rodríguez Pérez, Ivette María; Castro González, Jesús; Oliva Llena, Asensio (2013-07-01)
Article
Accés restringit per política de l'editorialThe 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 ... -
Numerical simulations of energy storage with encapsulated phase change materials. Special emphasis on solid-liquid phase change CFD modelling
Galione Klot, Pedro Andrés; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Oliva Llena, Asensio; Rodríguez Pérez, Ivette María (2013)
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Numerical simulations of thermal energy storage systems with phase cahnge materials
Galione, Pedro; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Oliva Llena, Asensio; Rodríguez Pérez, Ivette María (2011)
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Accés obertThis paper deals with the numerical simulation of thermal energy storage systems with PCM. Numerical simulations are a powerful tool for predicting the thermal behaviour of thermal systems, as well as for optimizing their ... -
Numerical study of heat transfer from a synthetic impinging jet with a detailed model of the actuator membrane
Miró, Arnau; Soria Guerrero, Manel; Cajas García, Juan Carlos; Rodríguez Pérez, Ivette María (2019-02-02)
Article
Accés obertSynthetic jets are produced by the oscillatory movement of a membrane inside a cavity, causing the fluid to enter and leave through a small orifice. The present study is focused on investigating the cooling capabilities ... -
Numerical study of the flow past a three-element high-lift airfoil at different angles of attack
Montalà Sales, Ricard; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (2023)
Comunicació de congrés
Accés obertA parametric study of the 30p30n three-element high-lift airfoil is conducted by changing the angle of attack at α = 5, 9 and 23◦ at a constant Reynolds number of Rec = 750, 000. Computational predictions are performed ... -
On DNS and LES of natural convection of wall-confined flows: Rayleigh-Bénard convection
Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Pérez Segarra, Carlos David (Springer, 2010)
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On the boundary layer development and heat transfer from a sphere at moderate Reynolds numbers
Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Soria Guerrero, Manel; Gómez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2018)
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Accés restringit per política de l'editorialDirect and large-eddy numerical simulations have been performed for a heated sphere at Reynolds numbers 200, 300, 500, 750, 1000 and 104, in the context of the development of a spherical wind sensor for Mars atmosphere ... -
On the CFD&HT of the flow around a parabolic trough solar collector under real working conditions
Amine Hachicha, Ahmed; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (2013)
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Accés obertParabolic trough solar collector is currently one of the most mature and prominent solar applications for production of electricity. These systems are usually located in open terrain where strong winds may occur and affect ... -
On the Characteristics of the Super-Critical Wake behind a Circular Cylinder
Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol (Multidisciplinary Digital Publishing Institute (MDPI), 2021-11-03)
Article
Accés obertThe flow topology of the wake behind a circular cylinder at the super-critical Reynolds number of Re=7.2×105 is investigated by means of large eddy simulations. In spite of the many research works on circular cylinders, ...