Exploració per autor "Castro González, Jesús"
Ara es mostren els items 66-84 de 84
-
Parallelization study of a VOF/Navier-Stokes model for 3D unstructured staggered meshes
(2011)
Comunicació de congrés
Accés obertThe numerical simulation of interfacial and free surface flows is a vast and interesting topic in the areas of engineering and fundamental physics, such as the study of liquid-gas interfaces, formation of droplets, bubbles ... -
Preliminary assessment of a polygeneration system based on a concentrated photovoltaic thermal (CPVT) solar collectors
(Technishe Universität Berlin, 2021)
Text en actes de congrés
Accés obertECOSun project has as main objective a cost reduction of electricity and heat co-generation via a Concentrated Photovoltaic/Thermal (CPV-T) system by applying low-cost materials and advanced industrial manufacturing methods. ... -
Preliminary evaluation of a pre-industrial air-cooled LiBr-H2O small capacity absorption machine
(Chinese Association of Refrigeration, 2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper describes the thermal design, and evaluates the preliminary operational results of a small capacity pre-industrial LiBr-H2O air-cooled absorption machine in order to validate a numerical model and apply it to ... -
Recent developments in the design of a new air-cooled, hot-water-driven H2O-LiBr absorption chiller
(ASHRAE, 2008)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper explains the up-to-date stage of development of an air-cooled H2O-LiBr absorption chiller. The methodology of development is based on the systematic application of advanced numerical and experimental techniques, ... -
Sensitivity Study To An Absorption System Performance Considering Heat And Mass Transfer Enhancements
(Purdue University, 2022)
Text en actes de congrés
Accés restringit per política de l'editorialThis work describes the absorption system performance with working pairs LiBr-H2O and Carrol-H2O (Carrol contains LiBr and EG -Ethylene glycol- with a mass ratio at 4.5:1) considering the thermal characteristics enhancement. ... -
Simulation of heat and mass transfer phenomena in the critical elements of H2O-LiBr absorption cooling machines. Experimental validation and application to design
(Universitat Politècnica de Catalunya, 2005-05-06)
Tesi
Accés obertDegut a la tendència a l'increment del preu de la energia, i el seu ús cada cop més estès per aire condicionat en els paisos desenvolupats, els sistemes de refrigeració basats en energia solar tenen cada cop més atractiu. ... -
Simulaton of absorption of H2O in falling film of LiBr aqueous in vertical tubes in wavy regime
(2011)
Comunicació de congrés
Accés restringit per política de l'editorialA mathematical model of falling film absorption of H2O by LiBr aqueous solutions which considers wavy regimes has been implemented. The model is semi-empirical, based on Navier Stokes equations together with energy and ... -
Solid-liquid phase change with turbulent flow
(Begell House, 2012)
Text en actes de congrés
Accés restringit per política de l'editorialThe present paper describes a numerical simulation of the solid-liquid phase change Computational Fluid Dynamics and Heat Transfer (CFD&HT) model developed in order to account for natural convection inside Phase Change ... -
Study of the influence of surfactants and surface treatments on the minimum wetting rate of falling films of aqueous LiBr and Carrol solutions
(Elsevier, 2022-09)
Article
Accés restringit per política de l'editorialThe wettability is one of the critical properties of the falling film type absorber, limiting the wetting area in the absorber, hence the total mass transfer performance. To achieve low values of wetting rate in the ... -
Study on temperature distribution of vertical liquid falling film heat transfer with Al2O3 nanofluid
(Elsevier, 2024-02-15)
Article
Accés obertThis study presents a laminar smooth 2-D theoretical model of the falling liquid film using an in-house code and validated with experimental results. The numerical model considers thermophysical property enhancements with ... -
Surface tension and contact angle measurement of LiBr and Carrol solution
(Technishe Universität Berlin, 2021)
Text en actes de congrés
Accés obertThe surface tension and contact angle play a relevant role in the heat and mass transfer for the absorption system working pairs. However, LiBr aqueous solution surface tension/contact angle studies are limited and for ... -
Testing and modeling of direct steam generating parabolic trough collectors
(2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe present work is elaborated in the framework of the REELCOOP research project. A mini hybrid (solar/biomass) power plant was installed and is under testing at ENIT (Ecole Nationale d’Ingénieurs de Tunis), Tunisia. The ... -
Thermal and fluid dynamic optimization of a CPV-T receiver for solar co-generation applications: numerical modelling and experimental validation
(Elsevier, 2023-07)
Article
Accés obertSolar co-generation, i.e., the generation of electricity and heat in a single device by concentrating the sunbeams, has the potential to significantly increase the overall system performance. The main challenge is related ... -
Thermal and thermochemicalenergy storage: bridging the gap between the virtual classroom and the face-to-face attendance
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-06)
Comunicació de congrés
Accés obertThermal and thermochemicalenergy storage is a course offered within the Master's degree in Energy Engineering and the KIC InnoenergyRenEMaster. This course is not only targeted to face-to-face attendees but also to students ... -
Three dimensional numerical simulations of combined conduction and radiation in transparent insulation material
(2012)
Comunicació de congrés
Accés restringit per política de l'editorialA coupled radiative and conductive three dimensional numerical model of transparent insulation material (TIM) is presented and the simulation results are compared with experimental results found in the literature. Since ... -
Three-dimensional direct numerical simulation (dns) Of taylor bubbles rising in non-Newtonian environments
(International Centre for Numerical Methods in Engineering (CIMNE), 2021)
Text en actes de congrés
Accés obertThree-dimensional numerical simulation of Taylor gas bubbles as primary unites of slug flow patterns rising in non-Newtonian environments is performed in the context of Direct Numerical Simulation (DNS) of the governing ... -
Transient model for the development of an air-cooled LiBr-H2O absorption chiller based on heat and mass transfer empirical correlations
(Elsevier, 2020-12)
Article
Accés obertThis work describes transient numerical modeling of a direct air-cooled,single-effect absorption chiller. The model is lumped parametric based on transient mass, momentum, and energy balances, applied to the internal ... -
VOF/Navier-Stokes implementation on 3D unstructured staggered meshes. Application to the Richtmyer-Meshkov instability
(2011)
Comunicació de congrés
Accés restringit per política de l'editorialThe numerical simulation of interfacial and free surface flows is a vast and interesting topic in the areas of engineering and fundamental physics, such as the study of liquid-gas interfaces, formation of droplets, bubbles ... -
Waste heat and water recovery for an industrial dryer by employing an absorption heat pump
(International Institute of Refrigeration, 2023)
Text en actes de congrés
Accés restringit per política de l'editorialThis study elaborates the incorporation of thermally-driven absorption heat pumps (AbHP) in industrial dryers for waste heat recovery purposes. The waste heat stream – hot humid air that would otherwise be rejected – ...
