Determination of the fixed bed wall heat transfer coefficient using computational fluid dynamics

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789608913819· OSTI ID:267936

Derkx, O R; Dixon, A G ^[1]

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1. Worcester Polytechnic Inst., MA (United States). Dept. of Chemical Engineering

Fluid flow and heat transfer in a fixed bed of tube-to-particle-diameter ratio 2.14 is modeled by an arrangement of three staggered spheres in a tube. The problem is solved numerically by a finite element method applied to the three-dimensional incompressible Navier-Stokes equations and the energy equation. Results are obtained for Reynolds numbers in the range 25--101, with a Prandtl number of 0.72 and particle conductivities in the range 0.25--48.0 W/(m K). Wall heat transfer coefficients obtained from the calculated temperature profiles are in good agreement with values predicted by a model-matching theory using correlations based on experimental measurements.

• Sponsoring Organization: USDOE
• OSTI ID: 267936
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 8 Vol. 29; ISSN 1040-7782; ISSN NHAAES
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CALCULATION METHODS
COMPUTERIZED SIMULATION
HEAT TRANSFER
PACKED BEDS
TEMPERATURE GRADIENTS