✦ LIBER ✦

An experimental investigation of the two-phase theory of fluidization

✍ Scribed by D.L. Pyle; D. Harrison

Publisher: Elsevier Science
Year: 1967
Tongue: English
Weight: 650 KB
Volume: 22
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(67)80186-6

No coin nor oath required. For personal study only.

✦ Synopsis

Experimental evidence for the two-phase theory of fluidization-that all the gas in excess of that required for incipient fluidization rises in the bubble phase-is discussed from two viewpoints. Fist, measurements of the volume flow-rate of bubbles in a two-dimensional fluidized bed are compared with the theory and it is found that near the distributor interstitial velocities may be several times the minimum fluidization velocity. Second, an expression for the minimum height of a fluidized bed consistent with the two-phase theory is developed on the basis of Nicklin's theory for bubbling two-phase systems. This is compared with experiments in both two-and three-dimensional beds and it is concluded that in many cases the velocity of gas in the particulate phase is greater than that required for incipient fluidization.

📜 SIMILAR VOLUMES

On the two-phase theory of fluidization

✍ J.R. Grace; R. Clift 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 786 KB

The distribution of gas flow between bubbles and the dense phase in a fluidized bed is considered. By deriving general equations for gas and solids continuity in a freely-bubbling fluidized bed, the possible contributions to the invisible gas flow are formulated. It is shown that the gross assumptio

96/00685 Experimental investigation of t

96/00685 Experimental investigation of the two-phase theory in a fluidized-bed combustor

📂 Article 📅 1996 🏛 Elsevier Science ⚖ 185 KB

Experimental investigation of geyser boi

Experimental investigation of geyser boiling in an annular two-phase closed thermosyphon

✍ T.F. Lin; W.T. Lin; Y.L. Tsay; J.C. Wu; R.J. Shyu 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 826 KB

Modeling of solid–liquid fluidization in

Modeling of solid–liquid fluidization in the stokes flow regime using two-phase flow theory

✍ Travis V. Thelen; W. Fred Ramirez 📂 Article 📅 1999 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 267 KB 👁 2 views

Experimental investigation of mass excha

Experimental investigation of mass exchanges between two laterally interconnected two-phase flows

✍ A. Tapucu; M. Geçkinli; N. Troche; R. Girard 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 1019 KB

An experimental and modelling investigat

An experimental and modelling investigation of gas mixing in bubbling fluidized beds

✍ Samir U. Sane; Henry W. Haynes Jr; Pradeep K. Agarwal 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 1001 KB

## Gas mixing in bubbling fluidized beds has been modelled, within the framework of the three-phase backmixing formulation, taking the influence of the circulation patterns of solids into account. It is shown that the inclusion of the solids movement patterns leads to axial dispersion of the gas i