Abstract

A model to calculate local heat transfer coefficients between the containment atmosphere and the walls of a pressurized water reactor containment building after a loss-of-coolant accident has been developed. The new calculation is based on the containment wall and atmosphere bulk temperatures, mass ratio of steam to air, and condensing or convective heat transfer conditions. Comparison with the Carolinas Virginia Tube Reactor Containment Tests shows good agreement. The model has been implemented into the containment code TECAR.

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