Sodium vapor deposition on a simulated model of an LMFBR rotating shield plug annulus, (1)

The paper present sodium vapor deposition rate onto annular walls of the test assemblies, which are consisted with three annuli and are mounted at cover gas space of sodium vessel. Experiment carried out are measurements of deposition rates and their dependence on pool temperature, cover gas pressure and temperature drop across cover gas space above the pool. The results are discussed and compared with those derived from previously known theories on evaporation of vapor in the presence of mist formation. But, the experimental results and theoretical predictions did not agree. The dependence of the experimental data were known to be caused by the evaporation rate dependence on these factors. (author)