IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v294y2024ics0360544224005899.html
   My bibliography  Save this article

Transient simulation and analysis of a supercritical CO2 heat removal system under different abnormal operation conditions

Author

Listed:
  • Hofer, Markus
  • Hecker, Frieder
  • Buck, Michael
  • Starflinger, Jörg

Abstract

The supercritical carbon dioxide (sCO2) heat removal system, which is based on multiple closed Brayton cycles with sCO2 as the working fluid, is an innovative, self-propelling and modular heat removal system for existing and future nuclear power plants. Previous studies analysed its design, layout, control and operation. In addition, this study considers different sudden failures during the accident progress, e.g. failure of single sCO2 cycles, control systems and valves. These abnormal conditions were investigated with the thermal-hydraulic system code ATHLET for a generic Konvoi pressurized water reactor. In most cases, the failure of a single sCO2 cycle can be compensated. On the one hand, failure of the fans of the gas cooler leads to a pressure increase which may be mitigated by an inventory control system or cycle shutdown. On the other hand, unintended fan speed-up can cause compressor surge without adequate countermeasures. Furthermore, the system can operate under the cyclic blow-off from the steam generator safety valves when the relief valves are not available. Finally, the unintended closure of the valve which controls the steam flow through the compact heat exchanger triggers a fast cycle shutdown but a subsequent restart might be possible.

Suggested Citation

  • Hofer, Markus & Hecker, Frieder & Buck, Michael & Starflinger, Jörg, 2024. "Transient simulation and analysis of a supercritical CO2 heat removal system under different abnormal operation conditions," Energy, Elsevier, vol. 294(C).
    • Handle: RePEc:eee:energy:v:294:y:2024:i:c:s0360544224005899
    DOI: 10.1016/j.energy.2024.130817
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224005899
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.130817?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Mauger, Gedeon & Tauveron, Nicolas & Bentivoglio, Fabrice & Ruby, Alain, 2019. "On the dynamic modeling of Brayton cycle power conversion systems with the CATHARE-3 code," Energy, Elsevier, vol. 168(C), pages 1002-1016.
    2. Hofer, Markus & Ren, Haikun & Hecker, Frieder & Buck, Michael & Brillert, Dieter & Starflinger, Jörg, 2022. "Simulation, analysis and control of a self-propelling heat removal system using supercritical CO2 under varying boundary conditions," Energy, Elsevier, vol. 247(C).
    3. Marchionni, Matteo & Usman, Muhammad & Chai, Lei & Tassou, Savvas A., 2023. "Inventory control assessment for small scale sCO2 heat to power conversion systems," Energy, Elsevier, vol. 267(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zhang, Lianjie & Deng, Tianrui & Klemeš, Jiří Jaromír & Zeng, Min & Ma, Ting & Wang, Qiuwang, 2021. "Supercritical CO2 Brayton cycle at different heat source temperatures and its analysis under leakage and disturbance conditions," Energy, Elsevier, vol. 237(C).
    2. Mustafa Erguvan & David W. MacPhee, 2021. "Can a Wastewater Treatment Plant Power Itself? Results from a Novel Biokinetic-Thermodynamic Analysis," J, MDPI, vol. 4(4), pages 1-24, October.
    3. Xu, Chi & Kong, Fanli & Yu, Dali & Yu, Jie & Khan, Muhammad Salman, 2021. "Influence of non-ideal gas characteristics on working fluid properties and thermal cycle of space nuclear power generation system," Energy, Elsevier, vol. 222(C).
    4. Cheng, Kunlin & Yu, Jianchi & Dang, Chaolei & Qin, Jiang & Jing, Wuxing, 2024. "Performance comparison between closed-Brayton-cycle power generation systems using supercritical carbon dioxide and helium–xenon mixture at ultra-high turbine inlet temperatures on hypersonic vehicles," Energy, Elsevier, vol. 293(C).
    5. Theologou, Konstantinos & Mertz, Rainer & Laurien, Eckart & Starflinger, Jörg, 2022. "Experimental investigations on heat transfer of CO2 under supercritical pressure in heated horizontal pipes," Energy, Elsevier, vol. 254(PA).
    6. Hofer, Markus & Ren, Haikun & Hecker, Frieder & Buck, Michael & Brillert, Dieter & Starflinger, Jörg, 2022. "Simulation, analysis and control of a self-propelling heat removal system using supercritical CO2 under varying boundary conditions," Energy, Elsevier, vol. 247(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:294:y:2024:i:c:s0360544224005899. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.