Recent Submissions

  • Numerical simulations of complex flows in hydraulic turbomachinery. Actual R&D lines in the ‘CFD/Applied Maths Laboratory’ 

    Coussirat Núñez, Miguel Gustavo; Fontanals García, Alfred (2016-07-01)
    Article
    Open Access
  • Detection and analysis of part load and full load instabilities in a real Francis turbine prototype 

    Presas Batlló, Alexandre; Valentín Ruiz, David; Egusquiza Estévez, Eduard; Valero Ferrando, Ma. del Carmen (Institute of Physics (IOP), 2017)
    Conference report
    Open Access
    Francis turbines operate in many cases out of its best effici ency point, in order to regulate their output power according to the instantaneous ener gy demand of the grid. Therefore, it is of paramount importance to analyse ...
  • Overview of the experimental tests in prototype 

    Egusquiza Estévez, Eduard; Valentín Ruiz, David; Presas Batlló, Alexandre; Valero Ferrando, Ma. del Carmen (Institute of Physics (IOP), 2017)
    Conference report
    Open Access
    Experimental tests in prototype are necessary to understand the dynamic behaviour of the machine during different operating points. Hydraulic phenomena as well as its effect on the structure need to be studied in o rder ...
  • Dynamic response of the MICA runner. Experiment and simulation 

    Valentín Ruiz, David; Presas Batlló, Alexandre; Egusquiza Estévez, Eduard; Valero Ferrando, Ma. del Carmen; Bossio, Matias (Institute of Physics (IOP), 2017)
    Conference report
    Open Access
    Studying the dynamic response of Francis turbine runners is of paramount importance in order to avoid resonance problems during operating conditions. For this purpose, the natural frequencies as well as their associated ...
  • Condition monitoring of a prototype turbine. Description of the system and main results 

    Valero Ferrando, Ma. del Carmen; Egusquiza Estévez, Eduard; Presas Batlló, Alexandre; Valentín Ruiz, David; Egusquiza Montagut, Mònica; Bossio, Matias (Institute of Physics (IOP), 2017)
    Conference report
    Open Access
    The fast change in new renewable energy is affecting directly the required operating range of hydropower plants. According to the present demand of electricity, it is necessary to generate different levels of power. Because ...
  • Hydraulic components fatigue assessment based on real-life load histories 

    Roquet Fernandez de Aramburo, Pere; Perez, Juan José; Codina Macià, Esteban (INMA Bucharest, 2017)
    Conference report
    Restricted access - publisher's policy
    Many safety-critical hydraulic components in agricultural and other off-road mobile machinery experience static as well as time-varying loads, and obviously they undergo the latter during a major portion of their service ...
  • New high sensitivity MEMS sensor for indirect pressure measurement 

    Ruggeri, Massimiliano; Massarotti, Giorgio Paolo; Codina Macià, Esteban (The Japan Fluid Power System Society, 2017)
    Conference report
    Restricted access - publisher's policy
    Sensorization of modern electro-hydraulic systems is one of the key technologies for system observability and controllability. Increasing needs for closed loop controls, high precision, power control and energy monitoring, ...
  • Hydrostatic steering system and energy saving evaluation in idle regime 

    Massarotti, Giorgio Paolo; MARANI, Pietro; Ruggeri, Massimiliano; Codina Macià, Esteban (The Japan Fluid Power System Society, 2017)
    Conference report
    Restricted access - publisher's policy
    The main goal of modern steering systems is to ensure the feeling of control whilst keeping an high safety level since steering is one of the most critical function of a mobile machine. In manifold mobile machines the ...
  • Advanced condition monitoring of Pelton turbines 

    Egusquiza Montagut, Mònica; Valero Ferrando, Ma. del Carmen; Presas Batlló, Alexandre; Valentín Ruiz, David; Bossio, Matias; Egusquiza Estévez, Eduard (2017)
    Conference report
    Restricted access - publisher's policy
    The ability of hydropower to adapt the electricity generation to the demand is necessary to integrate wind and solar energy to the grid. Nowadays hydropower turbines are required to work under harsher operating conditions ...
  • Extension of operating range in pump-turbines. Influence of head and load 

    Valero Ferrando, Ma. del Carmen; Egusquiza Montagut, Mònica; Egusquiza Estévez, Eduard; Presas Batlló, Alexandre; Valentín Ruiz, David; Bossio, Matias (2017-12-19)
    Article
    Open Access
    Due to the increasing share of new renewable energies like wind and solar in the generation of electricity the need for power regulation and energy storage is becoming of paramount importance. One of the systems to store ...
  • FEMPAR: an object-oriented parallel finite element framework 

    Badia, Santiago; Martín Huertas, Alberto Francisco; Principe, Ricardo Javier (2018-04)
    Article
    Open Access
    FEMPAR is an open source object oriented Fortran200X scientific software library for the high-performance scalable simulation of complex multiphysics problems governed by partial differential equations at large scales, by ...
  • From Paris to 2C? From the global to the country 2C references: Iran case study 

    Alcaraz Sendra, Olga; Xercavins, Josep (2017)
    Conference lecture
    Open Access

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