The one-dimensional steady-state temperature distribution within an isotropic porous bed subjected to a collimated and/or diffuse radiation heat flux and a transparent flowing fluid has been determined by numerical methods. The porous bed was assumed to be nonscattering and to have a constant absorption coefficient. Part of the radiation absorbed by the porous bed is reradiated and the remainder is transferred to the fluid by convection. Due to the assumed finite volumetric heat transfer coefficient, the bed and fluid have different temperatures. A bed with an optical depth of six and with a normal incident collimated radiation heat flux was investigated in detail. The radiation incident on the bed at the fluid exit was assumed to originate from a black surface at the fluid exit temperature. The investigation covered the range of incident diffuse and collimated radiation heat fluxes expected in a nonconcentrating solar energy collector. The results are presented in terms of a bed collection efficiency from which the fluid temperature rise can be calculated.
Skip Nav Destination
Article navigation
January 1968
This article was originally published in
Journal of Engineering for Power
Research Papers
Radiation and Convection Heat Transfer in a Porous Bed
W. A. Beckman
W. A. Beckman
Department of Mechanical Engineering, University of Wisconsin, Madison, Wis.
Search for other works by this author on:
W. A. Beckman
Department of Mechanical Engineering, University of Wisconsin, Madison, Wis.
J. Eng. Power. Jan 1968, 90(1): 51-54 (4 pages)
Published Online: January 1, 1968
Article history
Received:
August 7, 1967
Online:
August 25, 2011
Article
Article discussed|
View article
Citation
Beckman, W. A. (January 1, 1968). "Radiation and Convection Heat Transfer in a Porous Bed." ASME. J. Eng. Power. January 1968; 90(1): 51–54. https://doi.org/10.1115/1.3609134
Download citation file:
Get Email Alerts
Cited By
Cooled Spray Technology for Particulate Reduction in a Heavy-Duty Engine
J. Eng. Gas Turbines Power
Prediction and Analysis of Transient Turbine Tip Clearance Using Long Short-Term Memory Neural Network
J. Eng. Gas Turbines Power
Gas Turbine's Role in Energy Transition
J. Eng. Gas Turbines Power (October 2024)
The Effect of Swirl Number on Lean Blow Out Limits of Lean Direct Injection Combustors
J. Eng. Gas Turbines Power (October 2024)
Related Articles
An Efficient Localized Radial Basis Function Meshless Method for Fluid Flow and Conjugate Heat Transfer
J. Heat Transfer (February,2007)
Immersed Boundary Method for Radiative Heat Transfer Problems in Nongray Media With Complex Internal and External Boundaries
J. Heat Transfer (February,2017)
Simultaneous Radiation, Conduction, and Convection in a Spectrally Selective, Emitting, and Scattering Porous Bed
J. Heat Transfer (May,1966)
Inverse Determination of Steady Heat Convection Coefficient Distributions
J. Heat Transfer (May,1998)
Related Chapters
Radiation
Thermal Management of Microelectronic Equipment
Completing the Picture
Air Engines: The History, Science, and Reality of the Perfect Engine
The Special Characteristics of Closed-Cycle Gas Turbines
Closed-Cycle Gas Turbines: Operating Experience and Future Potential