Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 57, Issue 1, Pages 231-240Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2012.09.061
Keywords
CFD Simulation; Porous media; Heat transfer; Radiation
Categories
Funding
- Xunta de Galicia [10DPI303006PR]
- Ministry of Science and Innovation [ENE2009-14104-C02-01]
- Ministry of Economy and Competitiveness (Spain) [ENE2011-26073]
Ask authors/readers for more resources
A solar radiation absorber was simulated with CFD techniques and the results are compared with experimental data. The porous medium was modelled with a dispersed particle approach. Heat transfer of the porous media was calculated separately for a non-equilibrium approach. Radiative heat transfer plays an important role because all of the energy is received from the exterior by radiation. The radiation was modelled using the discrete ordinates model which seem to work properly in high participative media and presents a good directional accuracy. However, this method is not appropriated to simulate a multiphase medium where the temperatures and radiative properties of the different phases should be taken into account. Thus, a modification of the discrete ordinates method was introduced to consider the effect solid and gas phases. The results of the presented methodology were compared with other commonly used methods obtaining a reasonably better agreement with experimental data. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available