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.
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Oka, Y., Koshizuka, S., Ishiwatari, Y., Yamaji, A. (2010). Plant Startup and Stability. In: Super Light Water Reactors and Super Fast Reactors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-6035-1_5
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DOI: https://doi.org/10.1007/978-1-4419-6035-1_5
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