Numerical simulation of porous radiant burners under transient condition

Document Type : Article


1 Department of Mechanical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

2 Department of Energy, Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran

3 Department of Energy, Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.


The purpose of this work is to analyze two dimensional rectangular porous radiant burners for investigating the thermal characteristics of this type of burners in starting time period. Since, the solid and gas phases are not in thermal equilibrium, two separate energy equations for these two phases are solved numerically with alternative direction implicit scheme. The gas is considered non-radiative medium and for computation of radiative heat flux through the solid phase, the radiative transfer equation (RTE) is employed and solved with the discrete ordinates method (DOM). It is obtained that due to the dominant radiation effects, the required time to reach the steady gas temperature is very low. Furthermore, the effects of optical thickness and scattering albedo on the performance of porous radiant burner (PRB) are investigated.


Main Subjects


1. Takeno, T., Sato, K., and Hase, K. A theoretical
study on an excess enthalpy
ame", Proceedings of 18th
Int. Symposium on Combustion, Waterloo, pp. 465-72
2. Echigo, R., Yoshizawa, Y., Hanamura, K., and
Tomimura, T. Analytical and experimental studies
on radiative propagation in porous media with internal
heat generation", Proceedings of 8th Int. Heat Transfer
Conf., pp. 827-832 (1986).
3. Yoshida, H., Yung, J.H., Echigo, R., and Tomimura,
T. Transient characteristics of combined conduction,
convection and radiation heat transfer in porous media",
Int. J. Heat Mass Transfer, 33(5), pp. 847 - 857
4. Sathe, S. and Tong, T. A numerical analysis of heat
transfer and combustion in porous radiant burners",
Int. J. Heat Mass Transfer, 33, pp. 1331-1338 (1990).
5. Sathe, S., Kulkarni, M.R., Peck, R.E., and Tong, T.W.
An experimental and theoretical study of porous radiant
burner performance", International Symposium
on Combustion, pp. 1011-1018 (1991).
6. Christo, F.C. A parametric analysis of a coupled
chemistry-radiation model in porous media", DSTORR-
0188 (2000).
7. Brenner, G., Pickenacker, K., Pickenacker, O., Trimis,
D., Wawrzinek, K., and Weber, T. Numerical
and experimental investigation of matrix-stabilized
methane/air combustion in porous inert media", Int.
J. Combustion Flame, 123, pp. 201-213 (2000).
8. Talukdar, P., Mishra, S.C., Trimis, D., and Durst,
F. Heat transfer characteristics of a porous radiant
burner under the in
uence of a 2-D radiation eld", J.
Quantitative Spectroscopy & Radiative Transfer, 84,
pp. 527-537 (2004).
9. Lari, K. and Gandjalikhan Nassab, S.A. Transient
thermal characteristics of porous radiant burners",
Iranian J. of Science & Technology, Transition B,
Engineering, 31, pp. 407-420 (2007).
10. Farzaneh, M., Ebrahimi, R., Shams, M., and Sha ey,
M. Numerical simulation of thermal performance of a
porous burner", Chemical Engineering and Processing:
Process Intensi cation, 48, pp. 623-632 (2009).
11. Keshtkar, M.M. and Gandjalikhan Nassab, S.A. Theoretical
analysis of porous radiant burners under 2-D
radiation eld using discrete ordinates method", Int. J.
Quantitative Spectroscopy & Radiative Transfer, 110,
pp. 1894-1907 (2009).
12. Jahanshahi Javaran, E., Gandjalikhan Nassab, S.A.,
and Jafari, S. Thermal analysis of a 2-D heat recovery
system using porous media including lattice Boltzmann
simulation of
ow", International Journal
of Thermal Sciences, 49(6), pp. 1031-1041 (2010).
13. Chandra, N. and Nakamura, Y. Modeling and asymptotic
analysis of combustion of solid fuel deposited
over an inert porous medium", J. Thermal Science and
Technology, 12, pp. 723-739 (2012).
H. Shabani Nejad et al./Scientia Iranica, Transactions B: Mechanical Engineering 25 (2018) 689{699 699
14. Alazmi, B. and Vafai, K. Constant wall heat
boundary conditions in porous media under local thermal
non-equilibrium conditions", Int. J. Heat Mass
Transfer, 45, pp. 3071-3087 (2002).
15. Sigel, R. and Howell, J., Thermal Radiation Heat
Transfer, Taylor & Francis (2002).
16. Mital, R., Gore, J.P., and Viskant, R. Measurement
of extinction coecient and single scattering albedo
of reticulated porous ceramic at high temperatures",
30th AIAA Thermodynamics Conference, June 19-22,
San Diego (1995).
17. Escobedo, F. and Viljoen, H.J. Modeling of porous
radiant burners with large extinction coecients",
Canadian J. of Chemical Engineering, 72, pp. 805-814