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Plant Startup and Stability

  • Yoshiaki Oka
  • Seiichi Koshizuka
  • Yuki Ishiwatari
  • Akifumi Yamaji
Chapter

Abstract

This chapter presents the startup and stability of the Super LWR plant. Two startup schemes are proposed referring to those of fossil-fuel fired power plants (FPPs). The operating region of the reactor power and feedwater flow rate for satisfying the thermal criteria are identified with thermal analyses. Then, thermal-hydraulic stability of the Super LWR is analyzed with the frequency domain approach. Coupled neutronic thermal-hydraulic stability of the Super LWR is also analyzed with the same approach. These stability analyses include both supercritical and subcritical pressure conditions covering the startup process as well as the rated operation. The startup curve is finally drawn based on the thermal and stability considerations. The limiting constraint is identified for each process of plant startup. In addition, system pressurization by nuclear heating and the necessary equipment are proposed with reference to BWRs and FPPs. The feasibility of this concept is assessed by system transient analysis.

Keywords

Main Steam Fuel Channel Decay Ratio Core Power Flash Tank 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Yoshiaki Oka
    • 1
  • Seiichi Koshizuka
    • 2
  • Yuki Ishiwatari
    • 3
  • Akifumi Yamaji
    • 4
  1. 1.Department of Nuclear Energy Graduate School of Advanced Science and EngineeringWaseda UniversityShinjuku-kuJapan
  2. 2.Department of Systems Innovation Graduate School of EngineeringUniversity of TokyoBunkyo-kuJapan
  3. 3.Department of Nuclear Engineering and Management Graduate School of EngineeringUniversity of TokyoBunkyo-kuJapan
  4. 4.Department of Nuclear Engineering and ManagementUniversity of TokyoBunkyo-kuJapan

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