About: Modeling of Circulating Flow of Solids between a Fluidized Bed and a Fast Fluidized Bed/Pneumatic Transport Tube Ractor Connected by Orifices     Goto   Sponge   NotDistinct   Permalink

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  • Pomocí zjednodušených rovnic pro odhad tlakové ztráty v cyklonu /impaktoru a pro penetraci plynu z FV do PT-kolony jsme zkusili odhadnout jejich možné vlivy na cirkulaci částic. Srovnání teoretické předpovědi pro nasycenou transportní kapacitu plynu v pneumatickém transportu, počítané pomocí vybrané Yangovy korelace, s modelovou předpovědí hmotových toků částic ukázalo na možné problémy, omezení a nestability toku částic v některých režimech cirkulace a některých uspořádáních, zvláště s většími spojovacími otvory, vyšší FV a/nebo nižšími rychlostmi plynu v PT-koloně a většími částicemi. Pro řízení cirkulačního toku daného sypkého materiálu v duálním FV/PT systému by měly být uvažovány tři prakticky důležité parametry: rychlost plynu v PT-koloně, průřezová plocha spojovacích otvorů a výška FV. (cs)
  • Considering simplified equations for estimation of pressure drop in the cyclone/impactor and for gas penetration from FB to the PT-column we tentatively evaluated their possible effects on circulation of solids. Comparison of a theoretical forecast for saturation carrying capacity of gas in pneumatic transport (choking), computed by selected Yang correlation, with the model-computed mass fluxes of solids has indicated possible problems and instabilities of solids flow in some regimes and arrangements, especially with larger orifices, higher height of FB and/or lower gas velocities in PT-column and bigger particles. For control of circulation rate of a given particulate material in the dual FB/PT systems three practically important parameters should be considered: gas velocity in PT-column, cross sectional area of orifice(s) and height of FB.
  • Considering simplified equations for estimation of pressure drop in the cyclone/impactor and for gas penetration from FB to the PT-column we tentatively evaluated their possible effects on circulation of solids. Comparison of a theoretical forecast for saturation carrying capacity of gas in pneumatic transport (choking), computed by selected Yang correlation, with the model-computed mass fluxes of solids has indicated possible problems and instabilities of solids flow in some regimes and arrangements, especially with larger orifices, higher height of FB and/or lower gas velocities in PT-column and bigger particles. For control of circulation rate of a given particulate material in the dual FB/PT systems three practically important parameters should be considered: gas velocity in PT-column, cross sectional area of orifice(s) and height of FB. (en)
Title
  • Modeling of Circulating Flow of Solids between a Fluidized Bed and a Fast Fluidized Bed/Pneumatic Transport Tube Ractor Connected by Orifices
  • Modelování cirkulujícího toku tuhých částic mezi reaktorem s fluidní vrstvou a reaktorem s turbulentní fluidní vrstvou nebo neumo-transportním reaktorem spojených navzájem otvory (cs)
  • Modeling of Circulating Flow of Solids between a Fluidized Bed and a Fast Fluidized Bed/Pneumatic Transport Tube Ractor Connected by Orifices (en)
skos:prefLabel
  • Modeling of Circulating Flow of Solids between a Fluidized Bed and a Fast Fluidized Bed/Pneumatic Transport Tube Ractor Connected by Orifices
  • Modelování cirkulujícího toku tuhých částic mezi reaktorem s fluidní vrstvou a reaktorem s turbulentní fluidní vrstvou nebo neumo-transportním reaktorem spojených navzájem otvory (cs)
  • Modeling of Circulating Flow of Solids between a Fluidized Bed and a Fast Fluidized Bed/Pneumatic Transport Tube Ractor Connected by Orifices (en)
skos:notation
  • RIV/67985858:_____/07:00091199!RIV08-AV0-67985858
http://linked.open.../vavai/riv/strany
  • 259
http://linked.open...avai/riv/aktivita
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  • Z(AV0Z40720504)
http://linked.open...vai/riv/dodaniDat
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  • 434303
http://linked.open...ai/riv/idVysledku
  • RIV/67985858:_____/07:00091199
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  • fluidized bed; pneumatic transport; circulating flow (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [9CC6EB76B0EE]
http://linked.open...v/mistoKonaniAkce
  • Tatranské Matliare
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  • Bratislava
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  • Proceedings
http://linked.open...in/vavai/riv/obor
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  • Svoboda, Karel
  • Baxter, D.
  • Kalisz, S.
  • Miccio, F.
  • Wieczorek, K.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Slovak Society of Chemical Engineering
https://schema.org/isbn
  • 978-80-227-2640-5
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