The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2004
Session ID : B144
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Combined forced-convective and radiative heat transfer in cylindrical packed beds with constant wall heat flux
San San YeeS. SaitohK. Kamiuto
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Abstract
Combined forced-convective and radiative heat transfer in cylindrical packed beds with constant wall heat flux was numerically studied. The zero-equation turbulence model proposed by the authors was incorporated into the governing equations. The macroscopic momentum equation considered the effects of turbulence and hydrodynamic dispersion, in addition to Darcy-Brinkman-Forchheimer flow resistances, while the effects of thermal radiation, turbulence and thermal dispersion were taken into account in the energy equation. With this model, numerical analysis of combined heat transfer in cylindrical packed beds with constant wall heat flux was made, and the results were compared with available experimental data. The agreement is acceptable, showing that proposed numerical model is satisfactory for predicting the characteristics of fluid flow and heat transfer in packed beds.
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© 2004 The Japan Society of Mechanical Engineers
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