Enviaments recents

  • Computational fluid dynamics modeling of impinging gas-jet systems: II. Application to an industrial cooling system device 

    Coussirat Núñez, Miguel Gustavo; van Beeck, J; Mestres Ridge, Marc; Egusquiza Estévez, Eduard; Buchlin, J-M; Valero Ferrando, Ma. del Carmen (2005-07-15)
    Article
    Accés restringit per política de l'editorial
    A numerical analysis of the flow behavior in industrial cooling systems based on arrays of impinging jets has been performed, using several eddy viscosity models to determine their modeling capabilities. For the cooling ...
  • Computational fluid dynamics modeling of impinging gas-jet systems: I. Assessment of eddy viscosity models 

    Coussirat Núñez, Miguel Gustavo; van Beeck, J; Mestres Ridge, Marc; Egusquiza Estévez, Eduard; Buchlin, J-M; Escaler Puigoriol, Francesc Xavier (2005-07-15)
    Article
    Accés restringit per política de l'editorial
    Computational fluid dynamics plays an important role in engineering design. To gain insight into solving problems involving complex industrial flows, such as impinging gas-jet systems (IJS), an evaluation of several eddy ...
  • Experimental study of 3D movement in cushioning of hydraulic cylinder 

    Algar, Antonio; Codina Macià, Esteban; Freire Venegas, Francisco Javier (2017-05-25)
    Article
    Accés obert
    A double acting cylinder operation has been fully monitored in its key functional parameters, focused on characterization of end-of-stroke cushioning and starting phases. Being the cylinder performance reliant in the piston ...
  • Method for fluid flow simulation of a gerotor pump using OpenFOAM 

    Castilla López, Roberto; Gámez Montero, Pedro Javier; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (2017-07-21)
    Article
    Accés restringit per política de l'editorial
    A new approach based on the open source tool OpenFOAM is presented for the numerical simulation of a mini gerotor pump working at low pressure. The work is principally focused on the estimation of leakage flow in the ...
  • On the use of a dedicated ballast pellet for a prompt self-ejection mechanism after a temperature transient in lead-cooled fast reactors 

    Arias Montenegro, Francisco Javier (2017-10)
    Article
    Accés restringit per política de l'editorial
    The potential use of changes in buoyancy as a reactivity feedback mechanism during temperature transients in heavy liquid metal fast reactors (HLMFRs) is discussed. It is shown that with the use of ballast pellets (~15% ...
  • Ocean thermal energy conversion by deliberate seawater salinization 

    Arias Montenegro, Francisco Javier (2017-07-27)
    Article
    Accés restringit per política de l'editorial
    Consideration is given to the possibility of ocean thermal energy conversion (OTEC) by the deliberate salinization of surface seawater. The proposed technique is similar to traditional OTEC, with one important exception: ...
  • Ecotoxicological risks of the abandoned F-Ba-Pb-Zn mining area of Osor (Spain) 

    Bori Dols, Jaume; Valles Malet, Bettina; Navarro Flores, Andrés Francisco; Riva Juan, Mª del Carmen (2017-06-01)
    Article
    Accés restringit per política de l'editorial
    Due to its potential toxic properties, metal mobilization is of major concern in areas surrounding Pb-Zn mines. In the present study, metal contents and toxicity of soils, water extracts from soils, and mine drainage waters ...
  • The brinesiphon: a homolog of the thermosiphon driven by induced salinity and downward heat transfer 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2017-09-01)
    Article
    Accés restringit per política de l'editorial
    The basis of a novel method for passive solar water heating homologous to the thermosiphon but driven by induced salinity, which causes a fluid to circulate without the need for a mechanical pump and with inverse natural ...
  • Simulation model to find the best comfort, energy and cost scenarios for building refurbishment 

    Fonseca Casas, Antoni; Ortiz, Joana Aina; Garrido Soriano, Núria; Fonseca Casas, Pau; Salom Tormo, Jaume (2017-05-12)
    Article
    Accés restringit per política de l'editorial
    This article proposes a methodology to assess building behaviour, whilst taking its life cycle into account. Understanding of the system can be obtained by combining well-known energy consumption calculation engines (TRNSYS) ...
  • Experimental study on the impulsion port of a trochoidal wheeled pump 

    Raush Alviach, Gustavo Adolfo; Gámez Montero, Pedro Javier; Castilla López, Roberto; Codina Macià, Esteban (2017-06-01)
    Article
    Accés restringit per política de l'editorial
    All positive displacement pumps produce a pulsating flow. The present paper reports the experimental measurement of steady flow pulsations in the outlet of the internal wheeled pump. In the measured flow, the manufacturing ...

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