
ISSN Online: 2688-7231
ISBN Flash Drive: 978-1-56700-497-7
ISBN Online: 978-1-56700-496-0
Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)
Study on Droplet Size Distribution Effect in the Analysis of Postulated Sodium Spray Fire Events Pertaining to SFR Safety
Resumo
Numerical studies have been carried out to analyze the
influence of droplet size distribution on the consequence of
sodium spray fire scenarios pertaining to SFR safety
evaluation. The most commonly applied droplet size
distribution functions for the liquid spray i.e., Rosin-
Rammler, Log-Normal and Nukiyama-Tanasawa functions
were used in order to compare their utility to represent the
droplets size distribution in liquid sodium sprays. The effect
of initial droplet size distribution on spray fire consequences
has been studied using a 1-D sodium spray fire analysis code
by incorporating three different distribution functions chosen.
The code predicted values of peak pressure and maximum
gas temperature based on the estimated parameters of
different distribution functions have been compared. Based
on this study, the sensitivity of 1-D code predictions with
respect to chosen droplet size distribution functions in the
evaluation of sodium spray fire consequences has been
brought out. The results of this study are useful in the safety
analysis of postulated sodium spray fire scenarios in SFR.