Modeling 3-D bubble heat transfer in gas-solid fluidized beds using DEM
Modeling 3-D bubble heat transfer in gas-solid fluidized beds using DEM
Patil, A. V.; Peters, E. A. J. F.; Lau, Y. M.; Kuipers, J. A. M.
Computational fluid dynamics discrete element method simulations of a 3D fluidized bed at nonisothermal conditions are presented. Hot gas injection into a colder bed that is slightly above minimum fluidization conditions is modeled in a 3D square bed containing up to 8 million particles. In this study, bubbles formed in monodisperse beds of different glass particle sizes (0.25, 0.5, 0.75, and 1 mm) and using hot-gas-injection temperatures ranging from 700 to 1100 K are analyzed. Bubble heat-transfer coefficients in 3D fluidized beds are reported and compared with theoretical predictions on the basis of the Davidson and Harrison model.
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Industrial & Engineering Chemistry Research 54(2015)45, 11466-11474
Online First (2015) DOI: 10.1021/acs.iecr.5b02865
Cited 20 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-22702