Listar EMC_Articles por autoría "1c3df9f7-9675-498c-9f0e-ec42f8d460c9"
Mostrando ítems 1-20 de 33
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Bentonite as an active natural filler for silicone leading to piezoelectric-like response material
Iacob, Mihail; tiron, vasile; Stiubianu, George Theodor; Dascalu, Mihaela; Hernandez, Leonor; Varganici, Cristian-Dragos; Tugui, Codrin; Cazacu, Maria Elsevier (2022-01-10)Raw sodium bentonite (Bent) without preliminary treatments is incorporated as a filler in a silicone matrix, from 5 to 100 parts per hundred (pph), by weight, by simple mixing in solution. The mixtures are processed as ... -
Characterization of halloysite-water nanofluid for heat transfer applications
Alberola-Borràs, Jaume-Adrià; Mondragon, Rosa; Juliá Bolívar, José Enrique; Hernandez, Leonor; Cabedo, Luis Elsevier (2014-07-04)Nanofluids based on water with halloysite (Hal) nanotubes were prepared and characterized in order to evaluate its suitability to be used as a heat transfer fluid. A characterization of the Hal powder nanoparticles was ... -
Characterization study of a thermal oil-based carbon black solar nanofluid
Gimeno Furió, Alexandra; Hernandez, Leonor; Navarrete Argilés, Nuria; Mondragon, Rosa Elsevier (2019)Carbon nanoparticles are very useful in solar thermal applications, since they absorb much of the solar spectrum, are cheap and have excellent optical properties. Carbon nanoparticlesthermal oil-based nanofluid was ... -
Convective heat transfer performance of thermal oil-based nanofluids in a high-temperature thermohydraulic loop
Gil Font, Javier; Navarrete Argilés, Nuria; Cervantes Calvo, Estefanía; Mondragon, Rosa; Torró Cueco, Salvador Francisco; Martinez Cuenca, Raul; Hernandez, Leonor Elsevier Masson SAS (2021-09-08)Enhancing the performance of heat transfer fluids (HTF) is a key target for improving the efficiency of many industrial processes. Employing nanofluids for this purpose, by dispersing nanoparticles into the initial HTF to ... -
Development of a low-medium temperature T-history setup for the thermal storage characterization of non-homogeneous mixtures containing PCMs
Ayora Fernández, Marina; Isaza Ruiz, Marllory; Burgos Rodríguez, Jorge; Udayashankar, Nithiyanantham; Hernandez, Leonor Elsevier (2023-12-25)More attention has been paid to thermal energy storage in recent years for its advantages in heating and cooling applications to foster the use of renewable energies. As part of the design of new thermal energy storage ... -
Effects of Carbon Nanohorn Based Nanofluids Pool Boiling on Optical Properties and Wettability of Different Metal Surfaces
Gimeno Furió, Alexandra; Hernandez, Leonor; Barison, Simona; Agresti, Filippo; BOTTARO, GREGORIO; Cabaleiro, David; Doretti, Luca; mancin, simone Taylor & Francis (2020-09-16)Oxidized carbon nanohorn water based nanofluids are attracting more and more attention for solar harvesting applications because of their peculiar features: stable suspension without any surfactant, higher solar absorbance ... -
Experimental Characterization and Statistical Analysis of Water-Based Gold Nanofluids for Solar Applications: Optical Properties and Photothermal Conversion Efficiency
Burgos Rodríguez, Jorge; Mondragon, Rosa; Elçioğlu, Elif Begüm; Fabregat-Santiago, Francisco; Hernandez, Leonor Wiley (2022-03-26)Optimizing optical and photothermal properties of the solar nanofluids (NFs) to be used in direct absorption solar collectors is a key issue to maximize efficiencies in these collector types. This work both experimentally ... -
Experimental study of different coatings on silica sand in a directly irradiated fluidised bed: Thermal behaviour and cycling analysis
García-Plaza, J.; Díaz, Minerva; Mondragon, Rosa; Hernandez, Leonor; Calderon, Alejandro; Barreneche, Camila; Canales-Vázquez, J.; Fernandez, Ana Ines; Almendros-Ibáñez, José A. Elsevier (2022-11-25)The present work shows the experimental results obtained with sand particles, which where coated to increase the thermal absorptivity for CSP applications. The particles were tested in a lab-scale fluidised bed with ... -
Improved thermal energy storage of nanoencapsulated phase change materials by atomic layer deposition
Navarrete Argilés, Nuria; La Zara, Damiano; Goulas, Aristeidis; Valdesueiro, David; Hernandez, Leonor; van Ommen, J. Ruud; Mondragon, Rosa Elsevier (2020-03-31)Renewable energy has become of great interest over the past years in order to mitigate Global Warming. One of the actions gaining attention is the enhancement of the thermal energy storage capacity of Concentrated Solar ... -
Improving heat transfer of stabilised thermal oil-based tin nanofluids using biosurfactant and molecular layer deposition
Gil Font, Javier; Hatte, Marie-Anne; Bailey, Maximilian; Navarrete Argilés, Nuria; Ventura Espinosa, Jorge; Goulas, Aristeidis; La Zara, Damiano; van Ommen, J. Ruud; Mondragon, Rosa; Hernandez, Leonor Elsevier (2020-09)The development of advanced heat transfer fluids (HTF) with enhanced heat transfer properties has been identified as a key target to increase the efficiency of industrial processes. In this work, heat transfer performance ... -
Increment of specific heat capacity of solar salt with SiO2 nanoparticles
Andreu Cabedo, Patricia; Mondragon, Rosa; Hernandez, Leonor; Martinez Cuenca, Raul; Cabedo, Luis Springer (2014)Thermal energy storage (TES) is extremely important in concentrated solar power (CSP) plants since it represents the main difference and advantage of CSP plants with respect to other renewable energy sources such as wind, ... -
Influence of Particle Size on the Drying Kinetics of Single Droplets Containing Mixtures of Nanoparticles and Microparticles: Modeling and Pilot-Scale Validation
Mondragon, Rosa; Juliá Bolívar, José Enrique; Hernandez, Leonor; Jarque Fonfría, Juan Carlos Taylor & Francis (2013-05-03)The particle size of the primary particles is an important parameter influencing the drying behavior of droplets. In this work, the influence of particle size on the drying kinetics and grain properties was analyzed for ... -
Influence of the production method on the thermophysical properties of high temperature molten salt-based nanofluids
Navarrete Argilés, Nuria; Hernandez, Leonor; VELA GASULLA, ANTONIO FABIAN; Mondragon, Rosa Elsevier (2020-01-28)The potential use of molten salt-based nanofluids as thermal energy storage material in Concentrated Solar Power plants has gained attention over the last years due to their enhanced storage capacity. The possible effects ... -
K2CO3–Li2CO3 molten carbonate mixtures and their nanofluids for thermal energy storage: An overview of the literature
Navarrete Argilés, Nuria; Nithiyanantham, U.; Hernandez, Leonor; Mondragon, Rosa Elsevier (2021-12-23)The research and development of new thermal energy storage materials with high working temperatures are key topics to increase the efficiency of thermal energy to electricity conversion. The use of molten salt combinations ... -
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 ... -
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 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 ...