Measurement of Leidenfrost phenomenon using image-processing under high-pressure environment

This paper presents an experimental study of Leidenfrost conditions on stainless plate in high-pressure environment. By utilizing a pressure vessel, Leidenfrost conditions of water droplets were measured up to 2.1 MPa of ambient pressure. The results revealed that the wetting limit temperature increased with the ambient pressure. The theoretical equations regarding to the wall temperature at onset of liquid contact in pool boiling predicted well the present results. (author)