[2015] [2014] [2013] [2012] [2011] [2006]

2015 [to top]

• article-journal
  
  Ruopp, A., Daus, P., Biskup, F., Riedelbauch, S.: Performance prediction of a tidal in-stream current energy converter and site assessment next to Jindo, South Korea. Journal of Renewable and Sustainable Energy. 7, (2015).
  [URL]
   
• chapter
  
  Ruopp, A., Daus, P.: Simulation von Gezeitenströmungen zur Standortanalyse und Bestimmung vorhandener Potenziale. Wasserkraftprojekte Band II. S. 84--89. Springer Vieweg, Stephan Heimerl (2015).
   

2014 [to top]

• article-journal
  
  Ruopp, A., Ruprecht, A., Riedelbauch, S., Arnaud, G., Hamad, I.: Development of a hydro kinetic river turbine with simulation and operational measurement results in comparison. IOP Conference Series: Earth and Environmental Science. 22, 062002 (2014).
  [Abstract][URL]
   
  The development of a hydro-kinetic prototype was shown including the
  compound structure, guide vanes, runner blades and a draft tube section
  with a steeply sloping, short spoiler. The design process of the
  hydrodynamic layout was split into three major steps. First the compound
  and the draft tube section was designed and the best operating point
  was identified using porous media as replacement for the guide vane
  and runner section (step one). The best operating point and the volume
  flux as well as the pressure drop was identified and used for the
  design of the guide vane section and the runner section. Both were
  designed and simulated independently (step two). In step three, all
  parts were merged in stationary simulation runs detecting peak power
  and operational bandwidth. In addition, the full scale demonstrator
  was installed in August 2010 and measured in the St. Lawrence River
  in Quebec supporting the average inflow velocity using ADCP (Acoustic
  Doppler Current Profiler) and the generator power output over the
  variable rotational speed. Simulation data and measurements are in
  good agreement. Thus, the presented approach is a suitable way in
  designing a hydro kinetic turbine.
• paper-conference
  
  Daus, P., Ruopp, A., Biskup, F., Arlitt, R.: Performance prediction of a tidal in-stream current energy converter. 3rd IAHR Europe Congress, Book of Proceedings, 2014, Porto -Portugal (2014).
  [Abstract]
   
  The magnitude of energy, which is extracted by tidal energy converter
  devices, has a significant impact on the commercial viability of
  an entire project. Therefore a substantialcharacterization of the
  tidal current at the location of interest and subsequently a confident
  prediction of the electricity production of the tidal energy converter
  at an early stage of the project is of high interest. This paper
  deals with a method to estimate the production of a single device
  using results from a 2D shallow water equation model combined with
  turbine performance curves and its validation by performance data
  from operations of the Voith prototype HyTide 110-5.3 under real
  conditions in Jindo, South Korea. A recently developed 2D shallow
  water equation solver based on OpenFOAM (tidalFoam) is used to accurately
  simulate the tidal current around the installation location of the
  device.High-resolved bathymetry data, shorelines and tidal elevation
  at the open boundaries of the unstructured mesh is used to set up
  the model. The bottom friction as an additional implicit source term
  in the model is used to calibrate the simulation against Acoustic
  Doppler Current Profiler (ADCP) measurements at site. The expected
  electricity production is compared with actual field measurements
  during the operation of the Voith scaled demonstrator. The complete
  analysis and results gives valuable and significant confidence in
  the performance expectation of the single tidal turbine. The results
  show that the production of single devices can be accurately estimated.
  This grants an important first input to commercial evaluations of
  future tidal energy projects.

2013 [to top]

• paper-conference
  
  Ruopp, A., Daus, P., Ruprecht, A., Riedelbauch, S.: A Two-Dimensional Finite Volume Shallow Water Model for Tidal Current Simulations Using OpenFOAM® - Numerical Validation and High-Resolution Ocean Modelling Case. EWTEC, Aalbourg, Denmark. S. 10. , Aalborg, Denmark (2013).
   
• article-journal
  
  Ruopp, A., Daus, P.: Simulation von Gezeitenströmungen zur Standortanalyse und Bestimmung vorhandener Potenziale. Wasserwirtschaft. 103, 54 - 57 (2013).
   

2012 [to top]

• paper-conference
  
  Ruprecht, A., Ruopp, A., Simader, J.: CFD Based Mathematical Optimization of Hydro Turbine Components Using Cloud Computing. SimHydro, Hydraulic modelling and uncertainty (2012).
   
• paper-conference
  
  Ruprecht, A., Ruopp, A., Bauer, N., Riedelbauch, S.: Hydraulic Development of Hydro Kinetic Turbines. 17th International Seminar on Hydropower Plants. , Vienna, Austria (2012).
   

2011 [to top]

• paper-conference
  
  Ruopp, A., Ruprecht, A., Riedelbauch, S.: Automatic Blade Optimisation of Tidal Current Turbines Using OpenFOAM®. EWTEC, Southampton, England. S. 7. , Southampton, UK (2011).
   
• article-journal
  
  Ruprecht, A., Ruopp, A.: Entwicklung einer kinetischen Strömungsturbine. Wasserwirtschaft 101. 10, 34-37 (2011).
   

2006 [to top]

• paper-conference
  
  Koissin, V., Ruopp, A., Lomov, S.V., Verpoest, I., Witzel, V., Drechsler, K.: Internal structure of structurally stitched NCF preform. 12th European Conference on Composite Materials, ECCM 12, 2006 (2006).
  [Abstract][URL]
   
  The paper addresses the experimental investigation of the unit cell
  architecture in a structurally stitched multilayer carbon-fibre preform.
  Each layer is a multiaxial multiply non-crimp fabric (NCF) knit with
  a non-structural stitching. The term structural presumes here that
  the stitching yarn does not only consolidate the plies (as the non-structural
  one does) but also forms a 3D reinforcement. One stitching technique tufting is studied, with 120 tex aramide yarn. The experimental
  data reveals a considerable irregularity of the piercing pattern
  and fibre distribution.
• article-journal
  
  Koissin, V., Ruopp, A., Lomov, S.V., Verpoest, I., Witzel, V., Drechsler, K.: On-surface fibre-free zones and irregularity of piercing pattern in structurally stitched NCF preforms. Advanced Composites Letters. 15, 81--88 (2006).
  [Abstract][URL]
   
  The paper addresses the surface imperfections (openings in fibrous
  plies) and irregularity of the piercing pattern in structurally stitched
  multilayer carbon-fibre preforms. Each layer is a multiaxial multiply
  non-crimp fabric (NCF) with a non-structural stitching. The term
  ?structural? presumes here that the stitching yarn does not only
  consolidate the plies (as the non-structural one does) but forms
  also a through-the-thickness (3D) reinforcement. Four stitching methods
  are studied: ordinary CNC-sewing, tufting, dual-needle, and curved
  needle techniques with multifilament yarns: aramide (60 or 120 tex)
  or glass (204 tex). In total, 14 stitching cases are investigated
  experimentally. It is observed that a non-negligible variability
  exists in the meso-level geometry of the reinforcement. The geometrical
  characterization provides important input data for analysis of the
  permeability and mechanical properties of the preforms.