title: Room temperature water Leidenfrost droplets.
abstract: We experimentally investigate the Leidenfrost effect at pressures ranging from 1 to 0.05 atmospheric pressure. As a direct consequence of the Clausius–Clapeyron phase diagram of water, the droplet temperature can be at ambient temperature in a non-sophisticated lab environment. Furthermore, the lifetime of the Leidenfrost droplet is significantly increased in this low pressure environment. The temperature and pressure dependence of the evaporation rate is successfully tested against a recently proposed model. These results may pave the way for reaching efficient Leidenfrost micro-fluidic and milli-fluidic applications.
authors.affiliation: Laboratoire de Physique de la Matière Condensée, CNRS UMR 7366, Université de Nice Sophia-Antipolis, Parc Valrose 06108, Nice Cedex 2, France.
authors.forename: Franck
authors.initials: F
authors.lastname: Celestini
authors.forename: Thomas
authors.initials: T
authors.lastname: Frisch
authors.forename: Yves
authors.initials: Y
authors.lastname: Pomeau