Modeling of turbulent condensation heat transfer in the boiling water reactor primary containment

A condensation heat transfer model ius developed for the purpose of predicting the atmosphere temperature response within during the initial forced convention heat transfer period following a postulated LOCA. The model utilizes simultaneous heat and mass transfer for the process of condensation in the presence of a non-condensible gas. The gas-vapor diffusion layer formed is in the mode of turbulent, forced convection. The predicted heat transfer is determined to be diffusion controlled with negligible resistance being contributed by the condensate film. The model is qualified through the analysis of the response of a containment test facility; the results compare favorably with experimental observations made by GE. Predicted temperature responses for a typical containment are also shown and compared with those obtained through use of the Uchida heat transfer correlations. (orig./HP)