Recent Submissions

  • Mean kinetic energy distribution in finite-size wind farms: A function of turbines arrangement 

    Cortina, Gerard; Sharma, V.; Torres Cámara, Ricardo; Calaf, Marc (2019-10-28)
    Article
    Open Access
    In this work the redistribution and recovery of mean kinetic energy in a realistic, finite size wind farm is studied for neutral atmospheric boundary layer conditions. Five different wind farm configurations, with different ...
  • Geophonino-W: a wireless multichannel seismic noise recorder system for array measurements 

    Soler Llorens, Juan Luis; Galiana Merino, Juan José; Giner Caturla, José Juan; Rosa Cintas, Sergio; Benabdeloued, Boualem Youcef Nassim (Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-21)
    Article
    Open Access
    The characterization of soil is essential for the evaluation of seismic hazard, because soil properties strongly influence the damage caused by earthquakes. Methods based on seismic noise are the most commonly used in soil ...
  • Numerical investigation into the influence on hydrofoil vibrations of water tunnel test section acoustic modes 

    Wang, Wei; Zhou, Lingjiu; Wang, Zhengwei; Escaler Puigoriol, Francesc Xavier; De La Torre, Oscar (2019-06-17)
    Article
    Restricted access - publisher's policy
    High-speed water tunnels are typically used to investigate the single-phase and two-phase flows around hydrofoils for hydraulic machinery applications but their dynamic behavior is not usually evaluated. The modal analysis ...
  • Gas film heat transfer as enhancement strategy for phase change materials 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (Wiley (John Wiley & Sons), 2019-10-16)
    Article
    Restricted access - publisher's policy
    In this work, consideration is given to an alternative strategy for phase change materials (PCMs) heat transfer enhancement with particular reference to horizontal plates. In contrast with current approaches in which heat ...
  • On the feasibility of ocean brine pool power stations 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-10-22)
    Article
    Restricted access - publisher's policy
    The demonstrated existence of vast brine pools in a number of places in the ocean basin around the world offers an interesting opportunity to the production of power from ocean, which has not been yet considered. The ...
  • Ice friction for moving the heavy stones at the ancient Pumapunku complex. A first technological approach to the age problem 

    Arias Montenegro, Francisco Javier (2019-06-25)
    External research report
    Open Access
    In this work, ice-lubrication for moving the lithic material at the Tiwanaku complex and particulary at the ancient Pumapunku site is discussed. Ice friction (sliding stones on a sheet of ice) is identified as the most ...
  • A review of gerotor technology in hydraulic machines 

    Gámez Montero, Pedro Javier; Codina Macià, Esteban; Castilla López, Roberto (2019-06-24)
    Article
    Open Access
    Over the years, numerous investigations have established the gerotor fundamentals. This work aims to provide a complete review of the literature from the last decade, focusing on the articles published in the past five ...
  • Mining the hydrogen peroxide of Mars for monopropellant rocket fuel 

    Arias Montenegro, Francisco Javier (2019-10-10)
    External research report
    Open Access
    Already since the 1970s, hydrogen peroxide (H2O2) has been suggested as a possible oxidizer of the Martian surface, but until only three decades latter it was finally detected. So far, the interest aroused by planetary ...
  • An estimate for thermal osmotic heat storage using precipitation of common salts 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-09-09)
    Article
    Restricted access - publisher's policy
    In this brief note, a first assessment on the possibilities for thermal osmotic storage by harnessing the thermal dependence of the solubility of common salts as an alternative method to sensible heat storage is discussed. ...
  • The use of compliant surfaces for harvesting energy from water streams 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-09-13)
    Article
    Restricted access - publisher's policy
    The possibility for hydrokinetic energy harvesting from small water streams by using compliant surfaces is considered. The basis of the proposed idea is the deliberate bifurcation of a water stream into two streams separated ...
  • On osmotic heat powered cycles driven by thermal saturation-precipitation of aqueous solutions 

    Arias Montenegro, Francisco Javier (2019-08-09)
    Article
    Restricted access - publisher's policy
    The basis of a novel concept for osmotic heat powered cycles driven by the thermal dependence of the solubility of aqueous solutions inducing the continuous thermal precipitation/dissolution of solute is outlined. In this ...
  • A first estimate for thermal osmotic long storage 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-09-15)
    Article
    Restricted access - publisher's policy
    In this brief note, a first assessment on the possibilities for thermal osmotic storage using the thermal precipitation of aqueous solutions as alternative to sensible heat storage is performed. In a recent study it was ...

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