Advanced Course in Heat Transfer in Nuclear Reactor Safety
DOI: 10.1615/ICHMT.1982.AdvCourHeatTransfNucReactSaf
ISBN Print: 978-0-89116-223-0
4.16 Rewet Heat Transfer in Hot Tubes Cooled by Bottom, Top Flooding and Falling Films
pages 797-808
DOI: 10.1615/ICHMT.1982.AdvCourHeatTransfNucReactSaf.520
RÉSUMÉ
Experimental procedure and experimental results of rewet heat transfer data in electric heated tube cooled by bottom forced flooding and also by top flooding and falling film for pressurized water reactor emergency core cooling conditions are presented. Empirical correlations on heat transfer ahead of rewetting front, rewetting velocity and heat flux in rewetting front are presented. Comparision of experimental data in tubes with and without spacers was done. Rewetting front holding-up(flooding) in experiments with falling film is explained not only by hydrodinamical, but also by thermal factors.