Reflooding phenomena in a single heated rod, (2)

This study presents analysis for transients of clad surface temperature and quench front. It was said that film boiling which occurs on the wall surface above the quench front was a predominant heat transfer during the reflood portion in LOCA. Comparison of experimental results with analysis indicated that the heat transfer for the film boiling was correlated considering the effect of flooding speed as follows: h = (0.023 U sup(1.6) + 0.8)(lambda sub(ν) 3rho sub(ν)(rho sub(iota) - rho sub(ν))gHfg) sup(0.25)(μ sub(ν)L sub(x)(T sub(w) - T sub(s)))sup(-0.25). (author)