The Effective Convectivity Model for Simulation of Molten Metal Layer Heat Transfer in a Boiling Water Reactor Lower Head

<table>Dependency of metal layer thickness on fraction of metallic components in the initial debris bed (~180 tons).</table>

Science and Technology of Nuclear Installations

Figure 17: The Effective Convectivity Model for Simulation of Molten Metal Layer Heat Transfer in a Boiling Water Reactor Lower Head 