In this study, the structural integrity of liquid metal fast reactor fuel
assembly has been established for different parameters considering the
optimum fuel design. Analytical calculation of added mass effect due to lead
bismuth eutectic and verification through previously presented theories, has
been established. The integrity of the hexagonal wrapper of fuel assembly
has been guaranteed over the entire operating temperature range. Effect of
temperature on the density of lead bismuth eutectic, the subsequent
change in added mass of lead bismuth eutectic, the effect on natural
frequencies and effect on stresses on wrapper, has been studied in detail. A
simple empirical relationship is presented for estimation of added mass
effect for lead bismuth eutectic type fast reactors for any desired
temperature. An approach for assessment of fast reactor fuel assembly
performance has been outlined and calculated results are presented. Nuclear
seismic rules require that systems and components which are important to
safety, shall be capable of bearing earthquake effects and their integrity
and functionality should be guaranteed. Mode shapes, natural frequencies,
stresses on wrapper and seismic aspect has also been considered using
ANSYS. Modal analysis has been compared in vacuum and lead bismuth eutectic
using the calculated added mass.
Experimental study of local coolant hydrodynamics in TVS-Kvadrat PWR reactor fuel assembly using mixing spacer grids with different types of deflectors
