WebApr 25, 2024 · Gas holdup is the volume fraction of gas in the total volume of gas–liquid phase in the bubble column, which is one of the most important parameters to … WebLiterature. The act of burping an infant involves placing the child in a position conducive to gas expulsion (for example holding the infant up to the adult's shoulder, with the infant's …
What is column hold up? - Studybuff
WebMar 15, 2010 · The volume fraction of the dispersed gas phase is referred to as the gas hold-up. It is of considerable practical importance as it determines the maximal volume of … WebApr 9, 2024 · hold-up in British English noun 1. a robbery, esp an armed one 2. a delay; stoppage 3. US an excessive charge; extortion 4. (usually plural) a stocking that is held up by an elasticated top without suspenders verb hold up (adverb) 5. (transitive) to delay; hinder we were held up by traffic 6. (transitive) to keep from falling; support flights phx to denver today
Gas Holdup - an overview ScienceDirect Topics
WebGas–liquid–solid circulating fluidized bed also can provide higher gas holdup, produce more uniform bubble size, better interphase contact, and good heat and mass transfer capabilities. The flexibility of using GLSCFB allows the fluidized bed to operate at much more higher liquid velocity than the minimum fluidization velocity which in turn ... WebFeb 1, 2001 · The overall gas hold-up ε g, the volumetric mass transfer coefficient k 1 a, the liquid side mass transfer coefficient k 1, the volumetric interfacial area a, the bubble size d bs and bubble distribution have been characterised in two bubble columns and a non-standard vessel equipped with various dual-impeller combinations. In the bubble … Webrelationships between superficial gas velocity and particle diameter with the gas holdup. While an inverse relationship between solid concentration and particle density with the gas holdup. Mathematical and statistical analysis was also used as a powerful way to represent the gas hold up as a function of different operating conditions. cherry tree school wakefield