Modeling of Cesium Release from Light Water Reactor Fuel Under Severe Accident Conditions

Several empirically based models of fission product release, recently developed at various laboratories for severe reactor accident conditions, have been compared with the measured cesium release from light water reactor fuel in the VI series of experiments performed at the Oak Ridge National Laboratory. The models under consideration treat the underlying process of release by first-order kinetics or by classical diffusion theory. In addition, a state-of-the-art approach using an artificial neural network is evaluated.