Investigation of heat transfer in bubbling fluidization with an immersed tube

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Abstract

Fluidized beds with immersed tubes are widely used in many applications involving exothermic/endothermic reactions. Temperature control is an important concern in these applications, and has been studied extensively in literature by experiments at a macroscopic level. However, it is difficult to obtain microscopic information from those studies which is important to develop understanding of heat transfer mechanisms in this system. In this work, a coupled discrete particle simulation (DPS) and computational fluid dynamics (CFD) method is used to study heat transfer in fluidized beds with immersed tube. The results show that the predicted distribution and magnitude of average local heat transfer coefficients (HTC) agree well with experimental measurements. The related mechanisms are analyzed through particle flow pattern, porosity distribution and contact number. The results are useful for temperature control and prediction of tube erosion in fluidized beds.
Original languageEnglish
Title of host publicationAIP Conference Proceedings: The 6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion
EditorsLiejin Guo, D D Joseph, Y Matsumoto, M Sommerfeld, Yueshe Wang
Place of PublicationMelville NY USA
PublisherAmerican Institute of Physics
Pages355 - 360
Number of pages6
Volume1207
ISBN (Print)9780735407442
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventInternational Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion 2009 - Xi'an, China
Duration: 11 Jul 200915 Jul 2009
Conference number: 6th
https://searchworks.stanford.edu/view/8526508

Conference

ConferenceInternational Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion 2009
Abbreviated titleISMF 2009
CountryChina
CityXi'an
Period11/07/0915/07/09
Internet address

Cite this

Hou, Q., Zhou, Z., & Yu, A. (2010). Investigation of heat transfer in bubbling fluidization with an immersed tube. In L. Guo, D. D. Joseph, Y. Matsumoto, M. Sommerfeld, & Y. Wang (Eds.), AIP Conference Proceedings: The 6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion (Vol. 1207, pp. 355 - 360). American Institute of Physics. https://doi.org/10.1063/1.3366390