Numerical Study of the Heat Radiation from the Porous Cylindrical Burner with Radiative Heat Exchange

Article Preview

Abstract:

The problem of premixed gas combustion in porous cylindrical burner is investigated numerically. Two-temperature diffusional-thermal model taking into account radiative heat transfer described in the framework of Eddington model is applied. It was found that radiative heat transfer affects the characteristics of filtration combustion, such as temperature distribution and the flame radius, substantially. It is demonstrated that the overall heat flux from outer burner surface is significantly caused by heat radiation from the inner regions of the porous media. Account of the thermal radiation from the burner interior leads to the shift of the spectral power distribution maximum towards the short wave region in comparison with spectral density calculated on the base of burner outlet surface temperature.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

553-558

Citation:

Online since:

September 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Yu.M. Laevskii, V.S. Babkin, V.I. Drobyshevich, S.I. Potytnyakov, Theory of fitrational combustion of gases, Comb., Expl., Shock Waves 20 №6 (1984) 3-13.

DOI: 10.1007/bf00789228

Google Scholar

[2] J.R. Howell, M. J Hall, J.L. Ellzey, Combustion of hydrocarbon fuels within porous inert media, Progress in Energy and Combustion 22 (1996) 122-145.

DOI: 10.1016/0360-1285(96)00001-9

Google Scholar

[3] L.A. Kennedy, A.A. Fridmanand, A.V. Saveliev, J. Fluid Mech. Res. 22 (1996) 1-26.

Google Scholar

[4] N.A. Kakutkina, V.S. Babkin, Characteristics of stationary spherical waves of gas combustion in inert porous media, Comb., Expl., Shock Waves 34 №2 (1998) 123-132.

DOI: 10.1007/bf02672811

Google Scholar

[5] K.V. Dobrego, S.A. Zhdanok, S.I. Futko, Effect of porous media transparency on spherical and cylindrical filtrational combustion heaters performance, Int. j. of heat and mass transfer 43 (2000) 3469-3480.

DOI: 10.1016/s0017-9310(99)00320-8

Google Scholar

[6] A.I. Kirdyashkin, V.M. Orlovskii; E.A. Sosnin, et al., Energy and spectral characteristics of radiation during filtration combustion of natural gas, Comb., Expl., Shock Waves 46 №5 (2010) 523-527.

DOI: 10.1007/s10573-010-0068-7

Google Scholar

[7] V.S. Babkin, V.I. Drobyshevich, Yu.M. Laevskii, S.I. Potytnyakov, Filtrational combustion of gases, Comb., Expl., Shock Waves 19 №2 (1983) 17-26.

DOI: 10.1007/bf00789228

Google Scholar

[8] S.S. Minaev, V.S. Babkin, Flame propagation in a variable–section channel with gas filtration, Comb., Expl., Shock Waves 37 №1 (2001) 13-20.

Google Scholar

[9] F.S. Palesskii, S.S. Minaev, R.V. Fursenko, et al., Modeling of combustion of premixed mixtures of gases in an expanding channel with allowance for radiative heat losses, Comb., Expl., Shock Waves 48 №1 (2012) 17-23.

DOI: 10.1134/s0010508212010030

Google Scholar

[10] Yu. A. Chumakov, A. G. Knyazeva, Regimes of gas combustion in a porous body of a cylindrical heat generator, Comb., Expl., Shock Waves 45 №1 (2009) 14-24.

DOI: 10.1007/s10573-009-0003-y

Google Scholar