SUPERH-SG, A Computer Model Describing Nonequilibrium, Two Phase Flow in a Light Water Reactor Steam Generator During Reflood

摘要

An existing computer model for emergency core cooling reflood heat transfer has been modified to describe the nonequilibrium, two-phase, thermal-hydraulic pheonomena in a double-pass steam generator of a light water reactor during reflood. The predictive quality of the model has been assessed by comparison of calculated results with temperature, quality, and heat transfer data from an experiment which simulated the thermal-hydraulic performance of a pressurized water reactor steam generator. The calculated temperatures and qualities are generally within the experimental data uncertainty for a wide range of test conditions. Calculated heat transfer is less well calculated, but adequate for many purposes. (ERA citation 05:036683)