Listar por autoría "1c3df9f7-9675-498c-9f0e-ec42f8d460c9"
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Képzési igények a megújuló energiák vidékfejlesztési hasznosításában. Tanulmány a jövőbeli és képzési igényekről a megújuló energia piac helyi fejlesztésekben betöltött szerepére vonatkozóan Magyarországon
Hernandez, Leonor; Burriel Calvet, Joan Raül; Bujdosó, Zoltán; Topliceanu, Liliana Alma Mater (2017)The general goal of the research is to advance in the study of the training needs in the field of RES for rural development, in order to reduce the existing scarcities and to contribute to the development of relevant ... -
Macro-porous permeability aspects of MgSO4 salt hydrate foams for energy storage applications
CALABRESE, LUIGI; Hernandez, Leonor; Mondragon, Rosa; CABEZA, LUISA F. Wiley (2021-11-16)In the present work a macroporous silicone foam, able to contain the magnesium sulfate, was chosen as matrix for the reversible hydration/dehydration process of the salt hydrate. The aim of the article was addressed ... -
Mechanical reliability analysis of nanoencapsulated phase change materials combining Monte Carlo technique and the finite element method
Forner Escrig, Josep; Mondragon, Rosa; Hernandez, Leonor; Palma Guerrero, Roberto Elsevier (2021-07)Nanoencapsulated phase change materials (nePCMs) are one of the technologies currently under research for energy storage purposes. These nePCMs are composed of a phase change core surrounded by a shell which confines the ... -
Modeling of Drying Curves of Silica Nanofluid Droplets Dried in an Acoustic Levitator Using the Reaction Engineering Approach (REA) Model
Mondragon, Rosa; Juliá Bolívar, José Enrique; Hernandez, Leonor; Jarque Fonfría, Juan Carlos Taylor & Francis (2013)The use of nanoparticles has become of great interest in different industrial applications. The spray drying of nanofluids forms nanostructured grains, preserving the nanoparticle properties. In this work, individual ... -
Module 1. Renewable energy and local development
Hernandez, Leonor; Beltran, Hector; Querol, Vicente Alberto Universitat Jaume I (2016)To start the course, we will initially focus on the nature and characteristics of three natural and renewable resources: the sun, the wind, and the biomass. Although basically the three of them are obtained from the sun ... -
Module 2. Photovoltaic energy
Hernandez, Leonor; Segarra, José; Jorro-Ripoll, Juan; Kray, Zsuzsanna Universitat Jaume I (2016)To start this PV module the main uses of photovoltaics will be detailed in order to get an idea of the possibilities that this technology offers for the development of modern living. Once the technological possibilities ... -
Module 3: Biomass
Hernandez, Leonor; Radic, Zsolt; Patkós, Csaba Eszterházy Károly University (2016)The chapter gives an introduction to the main concepts of biomass. The students get familiar with the categories of biomass materials and the principles of biomass utilization. The chapter also gives a detailed analysis ... -
Module 4: Small wind energy
Grigore, Roxana; Puiu, Gabriel; Segarra, José; Jorro-Ripoll, Juan; Hernandez, Leonor University "Vasile Alecsandri" of Bacau (2016)To start this module it is necessary an introductive part about the use of wind energy to produce electricity. There are presented historical data of wind energy use, the evolution in time of wind turbines, basic constructive ... -
Necesidades formativas en el ámbito de las energías renovables para el desarrollo local. Comparativa de prospectiva y necesidades formativas en el mercado de las energías renovables para el desarrollo local en España, Rumanía y Hungría
Hernandez, Leonor; Burriel Calvet, Joan Raül; Bujdosó, Zoltán; Topliceanu, Liliana Alma Mater (2017)The general goal of the research is to advance in the study of the training needs in the field of RES for rural development, in order to reduce the existing scarcities and to contribute to the development of relevant ... -
Nevoile de instruire în domeniul energiilor regenerabile pentru dezvoltarea locală: Studiu privind necesitățile viitoare de instruire în domeniul energilor regenerabile pentru dezvoltare locală în România
Hernandez, Leonor; Burriel Calvet, Joan Raül; Bujdosó, Zoltán; Topliceanu, Liliana Alma Mater (2017)The general goal of the research is to advance in the study of the training needs in the field of RES for rural development, in order to reduce the existing scarcities and to contribute to the development of relevant ... -
New coloured coatings to enhance silica sand absorbance for direct particle solar receiver applications
Gimeno Furió, Alexandra; Hernandez, Leonor; Martinez Cuenca, Raul; Mondragon, Rosa; VELA GASULLA, ANTONIO FABIAN; Cabedo, Luis; Barreneche, Camila; Iacob, Mihail Elsevier (2020-06-30)New systems using solid particles for solar energy capturing, heat transfer and thermal energy storage have been proposed and analysed in direct particle solar receivers. In this work, black coloured silica sand was ... -
Non-linear finite element modelling of light-to-heat energy conversion applied to solar nanofluids
Forner Escrig, Josep; Mondragon, Rosa; Hernandez, Leonor; Palma Guerrero, Roberto Elsevier (2020-07-19)Nanoparticles (NPs) exhibit remarkable photothermal conversion efficiency under optical illumination. This light-induced heating on NPs is interesting in many different applications, such as solar radiation absorption in ... -
Numerical analysis of mechanical reliability of multi-coated phase change materials
Forner Escrig, Josep; Navarrete Argilés, Nuria; Palma Guerrero, Roberto; La Zara, Damiano; Valdesueiro, David; van Ommen, J. Ruud; Hernandez, Leonor; Mondragon, Rosa EDP Sciences (2021)Nanoencapsulated phase change materials (nePCMs) are nowadays under research for thermal energy storage purposes. NePCMs are composed of a phase change core surrounded by a shell that confines the core when molten. One of ... -
Numerical analysis of performance uncertainty of heat exchangers operated with nanofluids
Kamenik, B.; Begum Elcioglu, E.; Turgut, A.; Mondragon, Rosa; Hernandez, Leonor; Vallejo, Javier P.; Lugo, Luis; Buschmann, Matthias; Ravnik, Jure Elsevier Ltd. (2022-03-07)In this paper, we analyse the performance of two types of heat exchangers with nanofluid as the working fluid in turbulent flow regime ( 4, 000–180, 000). Based on the experimental uncertainty of the thermophysical properties ... -
Numerical and experimental characterization of the hydrodynamics and drying kinetics of a barbotine slurry spray
Sebastia-Saez, Daniel; Hernandez, Leonor; Arellano-Garcia, Harvey; Juliá Bolívar, José Enrique Elsevier (2019-02-23)Spray drying is a basic unit operation in several process industries such as food, pharmaceutical, ceramic, and others. In this work, a Eulerian-Lagrangian three-phase simulation is presented to study the drying process ... -
Numerical Modeling of the Mechanical Reliability of Multicoated Nanoencapsulated Phase-Change Materials with Improved Thermal Performance
Forner Escrig, Josep; Navarrete Argilés, Nuria; Palma Guerrero, Roberto; La Zara, Damiano; Goulas, Aristeidis; Valdesueiro, David; van Ommen, J. Ruud; Hernandez, Leonor; Mondragon, Rosa Wiley (2021-12-21)Nanoencapsulated phase-change materials (nePCMs) are investigated for enhancing thermal energy storage. However, the shell of these nanocapsules may fail due to stress developed during thermal processes, leading to melting ... -
On the use of area-averaged void fraction and local bubble chord length entropies as two- phase flow regime indicators
Hernandez, Leonor; Juliá Bolívar, José Enrique; Paranjape, Sidharth; Hibiki, Takashi; Ishii, M. Springer Verlag (2010)In this work, the use of the area-averaged void fraction and bubble chord length entropies is introduced as flow regime indicators in two-phase flow systems. The entropy provides quantitative information about the disorder ... -
Optical characterisation and photothermal conversion efficiency of a water-based carbon nanofluid for direct solar absorption applications.
Gimeno Furió, Alexandra; Martinez Cuenca, Raul; Mondragon, Rosa; VELA GASULLA, ANTONIO FABIAN; Doñate-Buendía, Carlos; Mínguez-Vega, Gladys; Hernandez, Leonor Elsevier (2020-12-01)Carbon nanoparticles are very useful in solar thermal applications as they absorb much of the solar spectrum and can be inexpensive. Water-based carbon nanofluids with two different concentrations (3 and 33 mg l−1) were ... -
Optical characterisation of oxidised carbon nanohorn nanofluids for direct solar energy absorption applications
Gimeno Furió, Alexandra; Hernandez, Leonor; Barison, Simona; Agresti, Filippo; Cabaleiro, David; mancin, simone Elsevier (2019-10-31)Carbon nanohorns and oxidised carbon nanohorns-based nanofluids were characterised by taking one step forward. The advantage of studying oxidised carbon nanohorns is that they are surfactant-free. The stability of both ... -
Photothermal properties and performance of hybrid carbon-paraffin/water emulsions
Burgos Rodríguez, Jorge; Mondragon, Rosa; Martinez Cuenca, Raul; Udayashankar, Nithiyanantham; Barison, Simona; mancin, simone; Fabregat-Santiago, Francisco; Hernandez, Leonor Elsevier (2023-10-09)Solar thermal energy has attracted renewed research interest for its excellent energy efficiency among different types of solar technologies. However, the limiting factor of them all is the intermittent nature of solar ...