A Two-dimensional Analytical Model for Prediction of the Radiation Heat Transfer in Open-cell Metal Foams

This is the accepted manuscript version of the following article: "Z. Jiang, et al., “A two-dimensional analytical model for prediction of the radiation heat transfer in open-cell metal foams”, Applied Thermal Engineering, Vol. 93: 1273-1281, October 2015." The final published version is available at: https://doi.org/10.1016/j.applthermaleng.2015.09.043 Copyright © 2015 Elsevier Ltd. All rights reserved. Article under Embargo until 23/10/17.In this article, a new two-dimensional (2D) explicit analytical model for the evaluation of the radiation heat transfer in highly porous open-cell metal foams is formulated and validated. A correction factor, C, is introduced to correct the deviation of the specific area in a simplified manner. Numerical results are compared with the published experimental data and three-dimensional (3D) model proposed in previous works. It reveals that the present two-dimensional model is proved to be relatively accurate in estimating the radiative conductivity for all the investigated structures. In the current work, the effects of the control parameters, such as the number of order in the iterative procedure, solid emissivity, the temperature difference, shape of solid particle and correction factor on the predictions of radiation characteristics are well discussed.Peer reviewe