Effect of Pressure on flow behaviors in dense gas-fluidized beds: a discrete particle simulation study.

J. Li, J.A.M. Kuipers

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    15 Downloads (Pure)

    Abstract

    A computational study has been carried out to assess the influence of pressure on the flow behaviors in dense gas-fluidized beds. Therefore the discrete particle simulation approach has been employed to study the regime transitions, local two-phase flow structures and the energy dissipation distribution. The results show that high pressure reduces the incipient fluidization velocity, widens the uniform fluidization regime and leads to a quick transition to the turbulent regime. Particularly it is discovered that high pressure, through enhancing gas-solid interaction and reducing the particle collision frequency, efficiently suppresses formation of large bubbles. As a consequence thereof more uniform gas-solid flow structures are produced leading to particulate fluidization.
    Original languageUndefined
    Title of host publicationProceedings of the 10th Engineering Foundation Conference on Fluidization, Beijing, China
    Pages-
    Publication statusPublished - 20 May 2001
    Event10th Engineering Foundation Conference on Fluidization, FLUIDIZATION X - Beijing, China
    Duration: 20 May 200125 May 2001

    Conference

    Conference10th Engineering Foundation Conference on Fluidization, FLUIDIZATION X
    Period20/05/0125/05/01
    OtherMay 20-25, 2001

    Keywords

    • IR-37286
    • METIS-204432

    Cite this