A computer model is proposed for single droplet vaporization at high pressure and temperature. The model is one‐dimensional in space, with no gas or liquid motion. The model is used to calculate the transient heat‐up and subsequent vaporization of the droplet. The numerical results indicate a rapid heat up period during which the droplet temperature surpasses its thermodynamic critical point under some relatively high pressure and temperature conditions. The current model does rely on some provisional methods for describing near‐critical point transport properties. Thus, the model should be improved by experimental data. An experimental procedure is described to verify the model results. Microgravity drop tower studies using a compression device with a droplet placed at a position of compressive symmetry will be pursued. The photographic results obtained from experiment should provide vaporization rate data throughout the droplet lifetime.