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Volume 30 Issue 5
Oct.  2009
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XUE Ai-jun, CHENG Xu. Stability Analysis of a Simplified Model of Supercritical Water-Cooled System[J]. Nuclear Power Engineering, 2009, 30(5): 35-39.
Citation: XUE Ai-jun, CHENG Xu. Stability Analysis of a Simplified Model of Supercritical Water-Cooled System[J]. Nuclear Power Engineering, 2009, 30(5): 35-39.

Stability Analysis of a Simplified Model of Supercritical Water-Cooled System

  • Received Date: 2008-08-09
  • Rev Recd Date: 2008-11-01
  • Available Online: 2025-07-28
  • Publish Date: 2009-10-15
  • This paper presents the stability analysis of a simplified model of supercritical water-cooled system. Based on the perturbation linearization and Laplace transformation, transfer function of the simplified system model is established. A stability map is generated using both dimensionless parameters, i.e. sub-pseudo-critical number and trans-pseudo-critical number. An unstable region nearby the pseudo-critical point is determined. The effect of some important parameters on the stability behavior is investigated. It is found that the system is stabilized with a higher hydraulic resistance of the inlet, fluid inlet velocity. It is also found that a longer heating zone or a bigger acceleration of gravity leads to a larger stability margin of the system.

     

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