L'activitat de recerca del Grup està centrada en tres línies principals: i) RECERCA BÀSICA: formulació matemàtica, resolució numèrica i validació experimental de fenòmens de transferència de calor i massa i de dinàmica de fluid; ii) RECERCA APLICADA: en els camps de la refrigeració; HVAC; sistemes actius i passius d'aprofitament de l'energia solar; bescanviadors de calor, aerodinàmica, refrigeració de components electrònics, etc; iii) TRANSFERÈNCIA DE TECNOLOGIA a sectors industrials i socials: innovació, estalvi energètic, reducció d'impacte ambiental.

The main objectives of the centre are teaching, research and technology transfer in the field of heat and mass transfer. Studies are carried out either from a basic research perspective, in which mathematical formulation, numerical solutions and experimental validation are considered, or from the perspective of applied research, in which the know-how acquired in the basic research line is applied to thermal and fluid dynamic design and the optimisation of thermal systems and equipment. The basic research line includes natural and forced convection, turbulence simulation, combustion, two-phase flow, solid-liquid phase change, radiation, porous media, computational fluid dynamics (CFD) and heat transfer, aerodynamics, high-performance computing (numerical algorithms and solvers, parallel computing), etc. In the applied research line, particular attention is paid to projects in the fields of refrigeration, HVAC, active and passive solar energy systems, heat exchangers, heat storage using liquids and phase change

The main objectives of the centre are teaching, research and technology transfer in the field of heat and mass transfer. Studies are carried out either from a basic research perspective, in which mathematical formulation, numerical solutions and experimental validation are considered, or from the perspective of applied research, in which the know-how acquired in the basic research line is applied to thermal and fluid dynamic design and the optimisation of thermal systems and equipment. The basic research line includes natural and forced convection, turbulence simulation, combustion, two-phase flow, solid-liquid phase change, radiation, porous media, computational fluid dynamics (CFD) and heat transfer, aerodynamics, high-performance computing (numerical algorithms and solvers, parallel computing), etc. In the applied research line, particular attention is paid to projects in the fields of refrigeration, HVAC, active and passive solar energy systems, heat exchangers, heat storage using liquids and phase change

Recent Submissions

  • Power electronics high performance air-cooled heat sinks integrating graphite based materials 

    Oliet Casasayas, Carles; Mullen, David; Hoell, Klaus; Cochrane, Nathan; Preishuber-Pfluegl, Florian; Rigola Serrano, Joaquim; Bouton, Mathieu; Pontrucher, Marc; Castrillo Green, Pablo; Santos Serrano, Daniel; Schillaci, Eugenio; McKay, Connor; Halimic, Elvedin; Freismuth, Juergen (Purdue University, 2021)
    Conference report
    Restricted access - publisher's policy
    The thermal management of the power electronics cooling in the aircraft is getting more attention in the recent years due to the progressive implementation of electrical systems, especially in the framework of the more ...
  • Subgrid-Scale Model Based on the Invariants of the Gradient Model Tensor 

    Folch Flórez, David; Trias Miquel, Francesc Xavier; Gorobets, A.; Oliva Llena, Asensio (2021)
    Conference report
    Open Access
    The incompressible Navier-Stokes equations stand as the best mathematical model for turbulent flows. However, direct numerical simulations at high Reynolds numbers are not yet feasible because the convective term produces ...
  • Numerical Analysis of Viscoelastic Fluid Injection Processes 

    Amani, Ahmad; Schillaci, Eugenio; Kizildag, Deniz; Pérez Segarra, Carlos David
    Conference report
    Open Access
    In this work, a numerical framework aimed at simulating high-viscous and viscoelastic liquid injection processes is presented. The study of fluid injection with viscoelastic properties, such as synthetic polymers, is of ...
  • Dynamic simulations of an absorption system with different working pairs at chiller and heat pump application 

    Zheng, Jian; Castro González, Jesús; Oliet Casasayas, Carles (Purdue University, 2021)
    Conference report
    Restricted access - publisher's policy
    This work describes the dynamic simulation of a direct air-cooled single effect solar-driven absorption system and demonstrates the numerical results of the absorption system with different working pairs. The working pairs ...
  • Experimental Analysis of a Draft Beer Ice Bank Machine 

    Torras, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2021)
    Conference report
    Restricted access - publisher's policy
    In a long-term established application as draft beer cooling and servicing machines, seems difficult to see any research application at first sight. However, this perspective change when one considers that the costs ...
  • A symmetry-preserving second-order time-accurate PISO-based method 

    Komen, E.M.J.; Hopman, Johannes Arend; Frederix, E.M.A.; Trias Miquel, Francesc Xavier; Verstappen, Roel (Elsevier, 2021-07-15)
    Article
    Restricted access - publisher's policy
    A new conservative symmetry-preserving second-order time-accurate PISO-based pressure-velocity coupling for solving the incompressible Navier-Stokes equations on unstructured collocated grids is presented in this paper. ...
  • Preliminary assessment of a polygeneration system based on a concentrated photovoltaic thermal (CPVT) solar collectors 

    Castro González, Jesús; Rigola Serrano, Joaquim; Kizildag, Deniz; Oliet Casasayas, Carles (Technishe Universität Berlin, 2021)
    Conference report
    Open Access
    ECOSun 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. ...
  • Surface tension and contact angle measurement of LiBr and Carrol solution 

    Zheng, Jian; Castro González, Jesús; Oliet Casasayas, Carles; Oliva Llena, Asensio (Technishe Universität Berlin, 2021)
    Conference report
    Open Access
    The 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 ...
  • Optimization of the progress variable definition using a genetic algorithm for the combustion of complex fuels 

    Both, Ambrus; Mira Martínez, Daniel; Lehmkuhl Barba, Oriol (MCM, 2021)
    Conference lecture
    Open Access
    In this work counterflow diffusion flamelets of n-heptane and air are used at stable and unsteady extinguishing conditions for building a thermo-chemical database for Computational Fluid Dynamics (CFD) calculations. The ...
  • High-fidelity simulations of the mixing and combustion of a technically premixed hydrogen flame 

    Mira Martínez, Daniel; Both, Ambrus; Lehmkuhl Barba, Oriol; Gomez Gonzalez, Samuel; Forck, Jonathan; Tanneberger, Tom; Stathopoulos, Panagiotis; Paschereit, Christian Oliver (MCM, 2021)
    Conference lecture
    Open Access
    Numerical simulations are used here to obtain further understanding on the flashback mechanism of a technically premixed hydrogen flame operated in lean conditions. Recent work from the authors (Mira et al., 2020) showed ...
  • Energy preserving multiphase flows: applications to falling films 

    Valle Marchante, Nicolás; Trias Miquel, Francesc Xavier; Castro González, Jesús (2021)
    Conference report
    Open Access
    The numerical simulation of multiphase flows presents several challenges, namely the transport of different phases within de domain and the inclusion of capillary effects. Here, these are approached by enforcing a discrete ...
  • Development of a reduced order model of solar heat gains prediction 

    Tamm, Meril; Macià, Jordi; Capdevila Paramio, Roser; Farnós Baulenas, Joan; Thalfeldt, Martin; Kurnitski, Jarek (2020-12-01)
    Article
    Open Access
    The aim of this study was to elaborate and validate a reduced order model able to forecast solar heat gains as a function of the architectural parameters that determine the solar heat gains. The study focused on office ...

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