film boiling

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film boiling

[′film ‚bȯil·iŋ]
(physical chemistry)
A stage in the boiling process in which the heater surface is totally covered by a film of vapor and the liquid does not contact the solid.
(thermodynamics)
Boiling in which a continuous film of vapor forms at the hot surface of the container holding the boiling liquid, reducing heat transfer across the surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Participants of Al-Bairaq's "I am a Researcher" track Fatma al-Maaedid, Amna al-Jumaili and Mariam al-Thani presented a project titled, "Leidenfrost Effect Drops as a Reactor for Direct Methanol Fuel Cell Catalyst," and discussed the skills they gained through the programme, which helped implement the project and carry out their research.
Participants of Al-Bairaq's 'I am a Researcher' track Fatma al Maaedid, Amna al Jumaili and Mariam al Thani presented a project titled 'Leidenfrost Effect Drops as a Reactor for Direct Methanol Fuel Cell Catalyst', and discussed the skills they gained through the programme, which helped implement the project and carry out their research.
Theoretically, even if the human body were to come in contact with the liquid nitrogen, it is possible to avoid this painful freezing because of the Leidenfrost effect, where a protective layer of relatively warmer gas forms around the body preventing heat transfer.
Among the topics are wetting of surfaces: the contact angle, capillary interactions between particles: particles placed on liquid surfaces: the elasticity of liquid surfaces covered by colloidal particles, oscillation of droplets, the evaporation of droplets: the Kelvin effect and the coffee-stain effect, superhydrophobicity and superoleophobicity: the Wenzel and Cassie wetting regimes, and the Leidenfrost effect: liquid marbles and self-propulsion.
One popular theory which is apparently accepted by mainstream science is the Leidenfrost effect. According to this theory: For brief periods at high temperature, moisture from perspiration vaporizes into a protective layer of air to insulate the skin.
It proposes a new kind of engine for producing energy based on the Leidenfrost effect - a phenomenon which happens when a liquid comes into near contact with a surface much hotter than its boiling point.
India, March 10 -- A team of researchers have developed a new technique based on the Leidenfrost effect, which produces energy from carbon dioxide (CO2) that could be used to power space explorations and sustain life on Mars.
It proposes a new kind of engine for producing energy based on the Leidenfrost effect -- a phenomenon which happens when a liquid comes into near contact with a surface much hotter than its boiling point.
Authors [7] proposed to reduce the drag force by using boiling crisis or Leidenfrost effect. In 1756 year J.
Chemists have now exploited this phenomenon, known as the Leidenfrost effect, to boil water without making bubbles (as seen at left, top).
Using a principle called the Leidenfrost effect as a guide, the team was able to make water droplets stretch out on the hot surface of a steel ball covered in nanoparticles, rather than bubble.