THERMAL SCIENCE

International Scientific Journal

Seyed Mostafa Hosseinalipour

,

Mohammadmehdi Namazi

STUDY OF GEOMETRICAL CHARACTERISTICS EFFECTS ON RADIATION PROPERTIES IN HIGH POROSITY FIBROUS POROUS MEDIA USING THE PORE-SCALE SIMULATION AND TWO-FLUX MODEL

ABSTRACT
In the present study, the radiation properties of a high porosity fibrous medium which is used in catalytic heaters were estimated. The calculation process was based on an inverse method using pore scale simulation and two-flux model. The results showed a good agreement with available experimental results. The effects of geometrical parameters including the solid volume fraction, fibers orientation, and diameter on the radiation properties were investigated. By increasing the solid share in the fibrous porous medium, the extinction coefficient increased, in which the absorption growth rate was higher than the scattering growth rate. The effect of the fibers angle on the scattering was greater than its effect on the absorption. For each porosity, an extinction coefficient could be defined in which, by increasing the fibers diameter, the extinction coefficient would not be reduced any more. The solid volume fraction, fibers diameter, and orientation were found to be the most effective geometric parameters on the radiation properties, respectively.
KEYWORDS
fibrous porous media, radiation properties, pore-scale simulation, inverse method, two-flux model
PAPER SUBMITTED: 2018-07-22
PAPER REVISED: 2018-12-09
PAPER ACCEPTED: 2018-12-19
PUBLISHED ONLINE: 2019-01-13
DOI REFERENCE: https://doi.org/10.2298/TSCI180722009H
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 2, PAGES [1299 - 1310]
REFERENCES
  1. Akolkar A., et al., Tomography Based Analysis of Conduction Anisotropy in Fibrous Insulation, International Journal of Heat and Mass Transfer, 108 (2017), B, pp. 1740-1749.
  2. Jodeiri N., et al., Modelling a Counter-Diffusive Reactor for Methane Combustion, Computers and Chemical Engineering, 39 (2012), pp. 47-56.
  3. Reichelt E., et al., Fiber Based Structured Materials for Catalytic Applications, Applied Catalysis A: General, 476 (2014), pp. 78-90.
  4. Malico I., Pereira F., Numerical Study on the Influence of Radiative Properties in Porous Media Combustion, Journal of Heat Transfer, 123 (2001), 5, pp. 951-957.
  5. Zhao J., et al., Radiative Properties and Heat Transfer Characteristics of Fiber-Loaded Silica Aerogel Composites for Thermal Insulation, International Journal of Heat and Mass Transfer, 55 (2012), 19-20, pp. 5196-5204.
  6. Daryabeigi K., et al., Heat Transfer Modeling for Rigid High-Temperature Fibrous Insulation, Journal of Thermophysics and Heat Transfer, 27 (2013), 3, pp. 414-421.
  7. Yuen W., Cunnington G., Radiative Heat Transfer Analysis of Fibrous Insulation Materials Using the Zonal-GEF Method, Journal Of Thermophysics And Heat Transfer, 21 (2007), 1, pp. 105-113.
  8. Arambakam R., et al., Dual-Scale 3-D Approach for Modeling Radiative Heat Transfer in Fibrous Insulations, International Journal of Heat and Mass Transfer, 64 (2013), pp. 1109-1117.
  9. Zhao S., et al., An Inverse Analysis to Determine Conductive and Radiative Properties of a Fibrous Medium, Journal of Quantitative Spectroscopy & Radiative Transfer, 110 (2009), 13, pp. 1111-1123.
  10. Ozisik M. N., Orlande H., Inverse Heat Transfer-Fundamentals and Applications, Taylor and Francis, 2000.
  11. Reddy K. S., Somasundharam S., An Inverse Method for Simultaneous Estimation of Thermal Properties of Orthotropic Materials Using Gaussian Process Regression, Journal of Physics: Conference Series, 745 (2016), 3, p. 032090.
  12. Daryabeigi K., Thermal Analysis and Design Optimization of Multilayer Insulation for Reentry Aerodynamic Heating, Journal of Spacecraft and Rockets, 39 (2002), 4, pp. 509-514.
  13. Tong T., Tien C., Radiative Heat Transfer in Fibrous Insulations—Part I: Analytical Study, Heat Transfer Journal, 105 (1983), 1, pp. 70-75.
  14. Ibrahim S. M., Radiation Effects on Mass Transfer Flow through a Highly Porous Medium with Heat Generation and Chemical Reaction, ISRN Computational Mathematics, (2013), Article ID 765408.
  15. Tahir M. A., et al., Modeling the Role of Microstructural Parameters in Radiative Heat Transfer through Disordered Fibrous Media, International Journal of Heat and Mass Transfer, 53 (2010), 21-22, pp. 4629-4637.
  16. Qashou I., et al., an Investigation of the Radiative Heat Transfer through Nonwoven Fibrous Materials, Journal of Engineered Fibers and Fabrics, 4 (2009), 1, pp. 9-15.
  17. Palmaa P., et al., Pore-Scale Simulations of Concentration Tails in Heterogeneous Porous Media, Journal of Contaminant Hydrology, 205 (2017), pp. 47-56.
  18. Vilcáez J., et al., Pore-Scale Simulation of Transport Properties of Carbonate Rocks Using FIB-SEM 3D Microstructure: Implications for Field Scale Solute Transport Simulations, Journal of Natural Gas Science and Engineering, 42 (2017), pp. 13-22.
  19. Stylianopoulos T., et al., Permeability Calculations in Three-Dimensional Isotropic and Oriented Fiber Networks, Physics of Fluids, 20 (2008), 12, p. 123601.
  20. Davies, C.N., The separation of airborne dust and particles. Proceedings of Institute of Mechanical Engineers B1, London, (1952), pp. 185-213.
  21. Jackson, G.W., James, D.F., The permeability of fibrous porous media, Canadian Journal of Chemical Engineering, 64 (1986), 3, pp. 364-374.
  22. Wang Q., et al., Simulating through-Plane Permeability of Fibrous Materials with Different Fiber Lengths, Modelling and Simulation in Materials Science and Engineering, 15 (2007), 8, pp. 855-868.
  23. Mital R., et al., Measurements of Radiative Properties of Cellular Ceramics at High Temperatures, Journal of Thermophysics and Heat Transfer, 10 (1996), 1, pp. 33-38.
  24. Deutschmann O., Computational Fluid Dynamics Simulation of Catalytic Reactors, Chapter 6 of Handbook of Heterogeneous Catalysis, Wiley, 2008.
  25. Daryabeigi K., et al., Combined Heat Transfer in High-Porosity High Temperature Fibrous Insulations: Theory and Experimental Validation, Journal of Thermophysics and Heat Transfer, 25 (2011), 4, pp. 536-546.
  26. Jaganathan S., et al., A Realistic Approach for Modeling Permeability of Fibrous Media: 3-D Imaging Coupled with CFD Simulation, Chemical Engineering Science, 63 (2008), 1, pp. 244 - 252.
  27. S. Patankar, Numerical Heat Transfer and Fluid Flow, CRC press, 1980.
  28. Khan T., Jiang H., A new diffusion approximation to the radiative transfer equation for scattering media with spatially varying refractive indices, Journal of Optics A: Pure and Applied Optics, 5 (2003), pp. 137-141.
  29. Böckh P., Wetzel T., Heat Transfer: Basics and Practice, Springer-Verlag, Berlin Heidelberg, 2012.
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Study of geometrical characteristics effects on radiation properties in high porosity fibrous porous media using the pore-scale simulation and two-flux model

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence