Explosion of metastable droplets in immiscible liquids

Evaporation of metastable droplets in an immiscible liquid can occur a wide range practical applications and particular cryogenic systems due to the low saturation temperature liquid. In this article, we show experimentally that incomplete explosion droplet lead ‘film evaporation’ configuration, where remaining is eventually separated from host by established vapour layer. Based on transient heat diffusion model, identified necessary but not sufficient condition for complete must absorb, before explosion, amount larger than latent required full evaporation, i.e. global Jacob number Ja≥1. addition, measured superheat limits pentane isohexane are 420.65 K 444.95 respectively, which very close theoretical Spinodal points (≤ 1.5 K) other reported values existing literature. Therefore, experimental setup here be used as alternative way quantify limit. The Droplet relaxation time was also found scaled square root characteristic time.