Publikationen

2021

• Digital Competences of Prospective Engineers and Science Teachers: A Latent Profile and Correspondence Analysis

  Schulze-Heuling, L. ., Wild, S. ., & Vest, A. . (2021). Digital Competences of Prospective Engineers and Science Teachers: A Latent Profile and Correspondence Analysis. International Journal of Education in Mathematics, Science and Technology (IJEMST), 9(4), 760-782. http://doi.org/https://doi.org/10.46328/ijemst.1831 (Original work published Oktober 2021)

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    • Vest, Anja

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2021
  • Journal Article
  • • Lydia Schulze-Heuling
    • Steffen Wild
    • Anja Vest

• The Physical Optimum as an Ideal Reference Value for Balancing Thermodynamic Processes Integrating the Exergetic Evaluation by the Example of Heat Supply

  Volta, D. ., & Weber, S. . (2021). The Physical Optimum as an Ideal Reference Value for Balancing Thermodynamic Processes Integrating the Exergetic Evaluation by the Example of Heat Supply. MDPI Energies, 14(15), 15. http://doi.org/https:// doi.org/10.3390/en14154426 (Original work published Juli 2021)

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  This paper contains the basic definition and application of the physical optimum as a method for process evaluation and optimization. By means of the exemplary balance of a wood pellet-fired boiler, the conventional efficiency is compared to the PhO. Furthermore, this study demonstrates the possibility of applying the thermodynamic state variable exergy as a physical reference property of a system within the PhO method. To explain the approach, the heat generation in the wood pellet-fired boiler is compared to the supply from a heat pump, which itself is connected to a power plant. Furthermore, the process-independent PhO is explained in order to illustrate the limitations of feasible optimization. Additionally, possible research topics such as the inte-gration of dynamic behavior in the method are approached. As a conclusion, the differences be-tween the methods outline the advantage of the PhO in the optimization process.

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    • Volta, Dirk
    • Rohm, Samanta Alena

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2021
  • Journal Article
  • • Dirk Volta
    • Samanta Weber
  • • physical optimum
    • PhO
    • reference process
    • energy efficiency
    • energy optimization
    • method comparison
    • energy

• SonoGame

  Gürgan, S. ., Mayer, L. ., Hahn, M. ., Seller, A. ., Bertel, S. ., Teistler, M. ., & Gall, C. . (2021). SonoGame. In Senologie - Zeitschrift für Mammadiagnostik und -therapie (Bd. 18). Thieme. http://doi.org/10.1055/s-0041-1730164 (Original work published Juni 2021)

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  • Personenseiten

    • Bertel, Sven
    • Teistler, Michael

  • Forschungsprojekt

    • Entwicklung und praktischer Einsatz virtueller und spielbasierter Lernsysteme in der medizinischen Bildgebung

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

  • Profilbereich

    • Informatik und Gestaltung

  • Forschungsfeld

    • Digitalisierung im Gesundheitswesen
    • Human-Computer-Interaction

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2021
  • Conference Paper
  • • Selin Gürgan
    • Lukas Mayer
    • Markus Hahn
    • Anna Seller
    • Sven Bertel
    • Michael Teistler
    • Christian Gall

• Symbolic Flexible Multibody Models for Wind Turbine Controller Design and Analysis

  Geisler, J. ., & Branlard, E. . (2021). Symbolic Flexible Multibody Models for Wind Turbine Controller Design and Analysis. Hannover / Online: Wind Energy Science Conference. http://doi.org/10.5281/zenodo.5148447 (Original work published Mai 2021)

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    • Geisler, Jens

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • Presentation
  • • Jens Geisler
    • Emmanuel Branlard
  • • flexible multi-body
    • equations of motion
    • automatic code generation
    • framework
    • wind energy
    • controller design

• A Familie of Simplified Aerodynamic Models for Wind Turbine Controller Design and Analysis

  Geisler, J. . (2021). A Familie of Simplified Aerodynamic Models for Wind Turbine Controller Design and Analysis. Hannover / Online: Wind Energy Science Conference. http://doi.org/10.5281/zenodo.5148441 (Original work published Mai 2021)

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    • Geisler, Jens

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2021
  • Presentation
  • • Jens Geisler
  • • controller design
    • simplified aerodynamics
    • aerodynamic damping
    • blade modes
    • kalman filter

• Application of a New Dispatch Methodology to Identify the Influence of Inertia Supplying Wind Turbines on Day-Ahead Market Sales Volumes

  Thiesen, H. ., & Jauch, C. . (2021). Application of a New Dispatch Methodology to Identify the Influence of Inertia Supplying Wind Turbines on Day-Ahead Market Sales Volumes. Energies, 14(5). http://doi.org/10.3390/en14051255 (Original work published Februar 2021)

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  Power system inertia is an essential part of grid frequency control. The number of synchronously connected machines, which inherently provide inertia, is decreasing due to the transition to renewable energies. Conventional generation units are being replaced by renewable generation units which are connected to the grid via frequency converters. Some power systems already suffer from too little power system inertia. Hence, inertia is a valuable yet non-traded commodity. A day-ahead dispatch methodology to secure power system inertia was developed and is applied and assessed in this work. Day-ahead market data of the combined market of the Republic of Ireland and Northern Ireland is used. If the superimposition of sell and buy bids results in insufficient inertia, the dispatch algorithm is applied. In decreasing price order, non-inertia-providing sell bids get replaced by the following sell bids in the merit order. The iterative process is repeated until sufficient inertia is in the system. The provision of synthetic inertia by wind turbines is considered in the process. The costs for additional stored kinetic energy for the assessed time periods and scenarios result in costs ranging from 1.02 to 4.49 EUR/kgm2.

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  • Personenseiten

    • Thiesen, Henning
    • Jauch, Clemens

  • Abteilung/Einrichtung

    • Wind Energy Technology Institute

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  • 2021
  • Journal Article
  • • Henning Thiesen
    • Prof. Dr. Clemens Jauch

• Tower and Foundation

  Faber, P. D.-I. T. . (2021). Tower and Foundation. In Understanding Wind Power Technology, Theory, Deployment and Optimisation. John Wiley & Sons.

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    • Faber, Torsten

  • Abteilung/Einrichtung

    • Wind Energy Technology Institute

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  • 2021
  • Book Chapter
  • • Prof. Dr.-Ing. Torsten Faber
  • • WETI

• Willemers Informatik-Ecke http://www.willemer.de/informatik

  Willemer, A. . (2021). Willemers Informatik-Ecke http://www.willemer.de/informatik. http://www.willemer.de/informatik: Arnold Willemer.

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    • Willemer, Arnold

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2021
  • Website
  • • Arnold Willemer

• Grid Services and Stress Reduction with a Flywheel in the Rotor of a Wind Turbine

  Jauch, C. . (2021). Grid Services and Stress Reduction with a Flywheel in the Rotor of a Wind Turbine. Energies, 14. http://doi.org/10.3390/en14092556

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  Wind power penetration increases in most grids and the sizes of wind turbines increase. This leads to increasingly tough requirements, which are imposed on wind turbines, both from the grid as well as from economics. Some of these partially contradictory requirements can only be satisfied with additional control mechanisms in the wind turbines. In this paper, such a mechanism, i.e., a hydraulic–pneumatic flywheel system in the rotor of a wind turbine, is discussed. This flywheel system supports a wind turbine in providing grid services such as steadying the power infeed, fast frequency response, continuous inertia provision, power system stabilization, and low voltage ride-through. In addition, it can help mitigate the stress on the mechanical structure of a wind turbine, which results from varying operating points, imbalances in the rotor, gravitation that acts on the blades, in-plane vibrations, and emergency braking. The study presented in this paper is based on simulations of a publicly available reference wind turbine. Both the rotor blade design as well as the design of the flywheel system are as previously published. It is discussed how the aforementioned grid services and the stress reduction mechanisms can be combined. Finally, it is concluded that such a flywheel system broadens the range of control mechanisms of a wind turbine substantially, which is beneficial for the grid as well as for the wind turbine itself.

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    • Jauch, Clemens

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2021
  • Journal Article
  • • Prof. Dr. Clemens Jauch

• Ciona intestinalis in the spotlight of metabolomics and microbiomics : New insights into its invasiveness and the biotechnological potential of its associated microbiota

  Utermann, C. ., Tasdemir, D. ., & Labes, A. . (2021). Ciona intestinalis in the spotlight of metabolomics and microbiomics : New insights into its invasiveness and the biotechnological potential of its associated microbiota (S. Online-Ressource). Kiel: Universitätsbibliothek Kiel.

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  • 2021
  • Book
  • • Caroline Utermann
    • Deniz Tasdemir
    • Antje Labes