Enviaments recents

  • Evaluation of the Lubrication Regime for Rotary Compressors. Influence of Thermal Expansions on the Minimum Film Thickness. 

    Vera i Fernández, Jordi; Schillaci, Eugenio; Rigola Serrano, Joaquim (Purdue University, 2022)
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    Accés restringit per política de l'editorial
    In this work, the lubrication regime of a rotary compressor is studied in the regions of the roller, cylinder, shaft, and bearings. A code is programmed so it can solve multiple cases with different suction-discharge ...
  • Thermal Systems Oriented Two-Phase Heat Exchanger Models. Focus on Numerical Robustness 

    Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim (Purdue University, 2022)
    Comunicació de congrés
    Accés obert
    The simulation of complex refrigeration architectures (that usually include vapor compression cycles) provides useful information for design, study and optimization purposes. Such arrangements may include several interconnected ...
  • Air Conditioning in Public Transport Vehicles. Numerical Simulation of Contaminants Transport and Infection Probability 

    Vera i Fernández, Jordi; Schillaci, Eugenio; Rigola Serrano, Joaquim; Arolas, Marc; Del Rivero, Oriol (Purdue University, 2022)
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    In this work, a numerical set-up is built to perform transient numerical simulations of air flow and contaminant transport within transport vehicles. In particular the case of a urban bus is proposed and analysed in detail, ...
  • Sensitivity Study To An Absorption System Performance Considering Heat And Mass Transfer Enhancements 

    Zheng, Jian; Castro González, Jesús; Papakokkinos, Giorgos; Oliva Llena, Asensio (Purdue University, 2022)
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    This 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. ...
  • Numerical Simulation of a cost efficient novel CPVT solar collector 

    Santos Serrano, Daniel; Castro González, Jesús; Kizildag, Deniz; Rigola Serrano, Joaquim; Oliva Llena, Asensio (International Society of Exposure Science (ISES), 2021)
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    In this work, the simulation of a Concentrated PhotoVoltaic Thermal (CPVT) solar collector system has been done by means of Finite Volume Method. The system consists of a parabolic collector, which concentrates solar ...
  • Mathematical Modeling and Experimental Validation of a Highly Efficient Flat Plate Solar Collector with compound Transparent Insulation Materials including a Silica Layer 

    Febrer Cordoba, Rafael; Castro González, Jesús; Zheng, Jian; Rigola Serrano, Joaquim; Oliva Llena, Asensio; Kizildag, Deniz (International Society of Exposure Science (ISES), 2021)
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    Accés restringit per política de l'editorial
    The present work consists in the development of a highly efficient solar thermal flat plate solar collector [FPC] with transparent insulation materials [TIM] at high-temperature ranges (¿ at ¿T/G close to 0.1 Km2/W). The ...
  • Energy-preserving stable computations of high-pressure supercritical fluids turbulence 

    Bernades, Marc; Capuano, Francesco; Trias Miquel, Francesc Xavier; Jofre Cruanyes, Lluís (2022)
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    High-fidelity computations of turbulent flows at high-pressure supercritical fluid conditions present significant challenges. Besides the inherent broadband nature of the flow, the rapid variation of thermophysical properties ...
  • Study of the conservation properties in two-way coupled dispersed multiphase flows using finite volume methods 

    Bahramian, Linda; Muela Castro, Jordi; Pérez Segarra, Carlos David (Institute of Physics (IOP), 2021)
    Comunicació de congrés
    Accés obert
    In order to simulate dispersed multiphase flows, the coupling level must be determined according to the volume fraction in the system. The volume fraction is the ratio of the total volume of the dispersed phases over the ...
  • DNS of Mass Transfer in Bi-dispersed Bubble Swarms 

    Balcázar Arciniega, Néstor; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2022)
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    This work presents Direct Numerical Simulation of mass transfer in a bi-dispersed bubble swarm at high Reynolds number, by using a multiple marker level-set method. Transport equations are discretized by the finite-volume ...
  • MAGICA project: development of a Multi-frequency Automotive GNSS Integrated Cost effective Antenna 

    Filatov, Evgenii; Vélez, Marco Antonio; Gemio, Joan; Vicente, Jose Javier; Capdevila Paramio, Roser; Tantinyà, Laura; Gil, Alberto; Cardalda, Adrián; Baños, Daniel; Mogas, Pere; Reyes, Joaquín (2021)
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    The present work describes the Multi-frequency Automotive GNSS Integrated Cost-effective Antenna (MAGICA) project and the first results. This is a two years project that started in August 2020 under the sponsorship of the ...
  • Numerical Investigation on fluid flow of protruding branching duct in a dividing junction of a minichannel heat exchanger 

    Settati, Mohamed; Oliet Casasayas, Carles; Oliva Llena, Asensio (2021)
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    This study focuses on investigating the effect of protruding branching duct on laminar fluid field in 90¿ dividing pipe junction of mini heat exchanger. The ducts under study, main and branch side, are of minichannel scale ...
  • DNS of unequal size droplets collision using a moving-mesh/level-set method 

    Amani, Ahmad; Balcázar Arciniega, Néstor; Gutierrez, Enrique; Oliva Llena, Asensio (Springer, 2019)
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    The dynamics of binary droplets collision is of huge importance in different fields, from multiphase reactors (Dudukovic et al in Chem Eng Sci 54:1975–1995, 1999 [11]), raindrop formation, ink-jet printing, spray combustion, ...

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