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- Fluidization abstract "Fluidization (or fluidisation) is a process similar to liquefaction whereby a granular material is converted from a static solid-like state to a dynamic fluid-like state. This process occurs when a fluid (liquid or gas) is passed up through the granular material. When a gas flow is introduced through the bottom of a bed of solid particles, it will move upwards through the bed via the empty spaces between the particles. At low gas velocities, aerodynamic drag on each particle is also low, and thus the bed remains in a fixed state. Increasing the velocity, the aerodynamic drag forces will begin to counteract the gravitational forces, causing the bed to expand in volume as the particles move away from each other. Further increasing the velocity, it will reach a critical value at which the upward drag forces will exactly equal the downward gravitational forces, causing the particles to become suspended within the fluid. At this critical value, the bed is said to be fluidized and will exhibit fluidic behavior. By further increasing gas velocity, the bulk density of the bed will continue to decrease, and its fluidization becomes more violent, until the particles no longer form a bed and are “conveyed” upwards by the gas flow. When fluidized, a bed of solid particles will behave as a fluid, like a liquid or gas. Like water in a bucket: the bed will conform to the volume of the chamber, its surface remaining perpendicular to gravity; objects with a lower density than the bed density will float on its surface, bobbing up and down if pushed downwards, while objects with a higher density sink to the bottom of the bed. The fluidic behavior allows the particles to be transported like a fluid, channeled through pipes, not requiring mechanical transport (e.g. conveyor belt).A simplified every-day-life example of a gas-solid fluidized bed would be a hot-air popcorn popper. The popcorn kernels, all being fairly uniform in size and shape, are suspended in the hot air rising from the bottom chamber. Because of the intense mixing of the particles, akin to that of a boiling liquid, this allows for a uniform temperature of the kernels throughout the chamber, minimizing the amount of burnt popcorn. After popping, the now larger popcorn particles encounter increased aerodynamic drag which pushes them out of the chamber and into a bowl.The process is also key in the formation of a sand volcano and fluid escape structures in sediments and sedimentary rocks.".
- Fluidization thumbnail Fluidized_Bed_Reactor_Graphic.svg?width=300.
- Fluidization wikiPageExternalLink icfar.ca.
- Fluidization wikiPageExternalLink fluidization.
- Fluidization wikiPageID "1149065".
- Fluidization wikiPageRevisionID "606547555".
- Fluidization hasPhotoCollection Fluidization.
- Fluidization subject Category:Chemical_processes.
- Fluidization subject Category:Fluidization.
- Fluidization comment "Fluidization (or fluidisation) is a process similar to liquefaction whereby a granular material is converted from a static solid-like state to a dynamic fluid-like state. This process occurs when a fluid (liquid or gas) is passed up through the granular material. When a gas flow is introduced through the bottom of a bed of solid particles, it will move upwards through the bed via the empty spaces between the particles.".
- Fluidization label "Fluidisation".
- Fluidization label "Fluidización".
- Fluidization label "Fluidization".
- Fluidization label "Fluidizzazione".
- Fluidization label "Fluidyzacja".
- Fluidization label "Fluïdisatie".
- Fluidization label "Wirbelschicht".
- Fluidization label "Псевдоожижение".
- Fluidization label "固体流态化".
- Fluidization sameAs Fluidizace.
- Fluidization sameAs Wirbelschicht.
- Fluidization sameAs Fluidización.
- Fluidization sameAs Fluidisation.
- Fluidization sameAs Fluidizzazione.
- Fluidization sameAs Fluïdisatie.
- Fluidization sameAs Fluidyzacja.
- Fluidization sameAs m.04bhzz.
- Fluidization sameAs Q1002145.
- Fluidization sameAs Q1002145.
- Fluidization wasDerivedFrom Fluidization?oldid=606547555.
- Fluidization depiction Fluidized_Bed_Reactor_Graphic.svg.
- Fluidization isPrimaryTopicOf Fluidization.
