Abstract
This report presents a detailed description of models that have been developed for the transient simulation of light water reactor steam generators. The steam generator models are based on a finite-difference formulation, and use an extended implicit continuous-fluid Eulerian (EICE) solution method that has been developed for implicit treatment of both fluid compressibility and heating effects during steam generator transients. An empirical two-phase slip flow model is also included in the formulation. Based upon the models developed for fluid flow and heat transfer, the specific models for once-through and U-tube steam generators are presented. The results of various transient calculations representing load follow maneuvers, turbine trips, natural flow oscillations, and vessel blowdown are presented.
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