A Study on Vapour Explosion Caused by the Contact Between Molten Salt of Na$_2$CO$_3$-NaOH Mixture and water

Na$_2$CO$_3$-NaOH 혼합용융염과 물의 접촉에 의한 증기폭발에 관한 연구

Molten salt-water explosion caused by the contact between molten salt and water is one of vapour explosions. An experimental study of the vapour explosion, which occurs when the molten mixture of Na$_2$CO$_3$-NaOH and water come in contact was performed. The pressure wave generated in each composition Of molten mixtures was measured. The results obtained are as follows： 1) The vapour explosion didn't occur for a molten salt of 100%-Na$_2$CO$_3$- 2) For a molten salt of Na$_2$CO$_3$ 80％-NaOH 20% mixture, a small vapour explosion occured initially, and a large vapour explosion, which showed the largest pressure wave among the present experiments, occurred after an induced period. 3) For molten salt of Na$_2$CO$_3$60％ - NaOH 40％ mixture and Na$_2$CO$_3$ 40％ - NaOH 60％ mixture, the vapour explosion occurred near the water surface shortly after they come in contact with water. This explosion would be caused by fragmentation of the molten salts due to impulse generated when thee molten salts and water come in contact.