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Heat Transfer in Absorbing Emitting Hot Gaseous Mixtures Flowing inside Circular Ducts
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Abstract
In this work, numerical calculations are performed to study thermal radiation effects on heat transfer for combustion products (H2O-CO2-N2) flowing inside circular ducts. Combined heat transfer, by thermal radiation and forced convection is presented in some cases of practical situations such as combustion of natural gas, propane and heavy fuel. Special attention was paid to the treatment of real gaseous mixture thermal radiation, with its spectral nature, and their effects on evolution of radiative, convective and conductive fluxes for a steady laminar flow. The infrared radiative properties of the flowing H2O-CO2-N2 gas mixtures are taken into account in this analysis by using the global Absorption Distribution Function model. Some differences between non gray radiative behaviors of these combustion products, due to different structures of their spectra, are put in evidence through the evolution of the volumetric radiative power. The flow and energy balance equations are solved simultaneously with temperature dependent fluid properties. The approximations of a boundary layer flow are made, except for radiative transfer. The results are presented for typical conditions of combustion products flows. It is shown that radiative transfer affects significantly the different heat fluxes exchanged, and thus the Nusselt number and bulk temperatures.
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References
S. Desoto, Coupled Radiation Conduction and Convection in Entrance Region Flow, International Journal of Heat and Mass Transfer, Vol. 11, pp. 39-53, 1968.
R. Viskanta, Overview of Convection an Radiation in High Temperature Gas Flows, International Journal of Engineering Science, Vol. 36, pp. 1677-1699, 1998.
A. Soufiani, J. Taine, Application of statistical Narrow-Band Model to Coupled Radiation and Convection at High Temperature, International Journal of Heat and Mass Transfer, Vol. 3, n. 1, pp. 437-447, 1987.
E. Sediki, A. Soufiani, M.S. Sifaoui, Spectrally Correlated Radiation and Laminar Forced Convection in the Entrance Region of Circular Duct, International Journal of Heat and Mass Transfer, Vol. 45, pp. 5069-5081, 2002.
E. Sediki, A. Soufiani, M.S. Sifaoui, Combined Gas Radiation and Laminar Mixed Convection in Vertical Circular Tubes, International Journal of Heat and Fluid Flow, Vol. 24, pp. 736-746, 2003.
H. C. Hottel, A. F. Sarofim, Radiative Transfer ( 2nd edition, Mac Graw Hill New York ,1967).
P. S. Cumber, M. Fairweather, H. S. Ledin, Application of wide band radiation models to non-homogeneous combustion system, International Journal of Heat and Mass Transfer, Vol.41, n. 11, pp.1573-1584, 1998.
P. S. Cumber, M. Fairweather, Evaluation of flame emission models combined with the discrete transfer method for combustion system simulation, International Journal of Heat and Mass Transfer, Vol.48, pp.5222-5239, 2005.
J. B. Pessoa-Filho, Thermal radiation in combustion systems, Journal of the Brazilian Society of Mechanics Sciences, Vol.21, n.3, pp.537-547, 1999.
S. Dembele, J. X. Wen, Investigation of a spectral formulation for radiative heat transfer in one-dimensional fires and combustion system. International Journal of Heat and Mass Transfer, Vol.43, pp.4019-4030, 2000.
D. A. Kontogeeorgos, E. P. Keramida, M. A. Founti, Assessment of simplified thermal radiation models for engineering calculations in natural gas-fired furnace, International Journal of Heat and Mass Transfer, Vol.50, pp.5260-5268, 2007.
M. F. Modest, Radiative Heat Transfer (2nd edition, Mac Graw Hill New York, 1993).
L. Pierrot, A. Soufiani, J. Taine, J. Quant, Accuracy of Narrow Band and Global Models for Radiative Transfer in H2O, CO2 and H2O-CO2 Mixtures at High Temperature, Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 62, pp. 523-548, 1999.
L. Pierrot, Développement, Etude Critique et Validation de Modèles de Propriétés Radiatives Infrarouges de CO2 et H2O à Haute Température. Application au Calcul des Transferts dans des Chambres Aéronautiques et à la Télédétection, Ecole Central, Paris, 1997.
L. Pierrot, Ph. Rivière, A. Soufiani, J. J. Quant, A Fictitious-Gas-Based Absorption Distribution Function Global Model for Radiative Transfer in Hot Gases, Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 62, pp. 609-624, 1999.
A. Soufiani, E. Djavdan, A Comparison Between Weighted Sum of Gray Gases and Statistical Narrow Band Radiation Models for Combustion Applications, Combustion and Flamme, Vol. 97, pp. 240-250, 1994.
J. Taine, A. Soufiani, Gas IR Radiatives Properties: From Spectroscopic Data to Approximate Models, In J. Houseman (Ed.), J.P. Hartnett and T.F. Irvine, 33 (New York: Academic Press, 1999, 295-414).
L. Zhang, A. Soufiani, J. Taine, Spectral Correlated and Non-Correlated Radiative Transfer in a Finite Axisymmetric System Containing an Absorbing and Emitting Real Gas-Particle mixture, International Journal of Heat and Mass Transfer, Vol. 31, pp. 2261-2272, 1988.
M. K. Denison, B. Webb, The Spectral-line-Bsed Weighted-Sum-of-Gray–Gases Model in Nonisothermal Nonhomogeneous Media, Journal of Heat Transfer, Vol. 117, pp. 359-365, 1995.
Ph. Rivière, S. Langlois, A. Soufiani, An Approximate Data Base o H2O Infrared Lines for High Temperature Applications at Low Resolution Statistical Narrow Band Models Parameters, Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 53, pp. 221-234, 1995.
D. Scutaru, L. Rosenman, J. Taine, J. Quant, Approximate Band Intensities of CO2 Hot Bands at 2.7, 4.3 and 12µm for High Temperature and Medium Resolution Applications, Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 52, pp. 765-781, 1994.
A. Soufiani, J. Taine, Spectrally correlated Radiative Transfer in Real 3D Axisymmetrical Systems, The sixth International Symposium on Transport Phenomena in Thermal Engineering, (Begell House Inc .Publisher, 1994, pp.185-190).
Y.S. Touloukian, P.E. Liley, S. C. Saxena, Thermophysical Properties of Matter, IFI/Plenum, Vol. 3 (New York: Washington, 1970).
Y.S. Touloukian, P.E. Liley, S. C. Saxena, Thermophysical Properties of Matter, IFI/Plenum, Vol. 11 (New York: Washington, 1970).
S.V. Patankar, D.B. Spalding, A Calculation Procedure for Heat Mass and Momentum Transfer in Three dimensional Parabolic Flow, International Journal of Heat and Mass Transfer, Vol. 15, pp. 1787-1806, 1972.
C. A. Bankston, D. M. McEligot, Turbulant and Laminar Heat Transfer to Gases with Varying Properties in the Entry Region of Circular Ducts, International Journal of Heat and Massr Transfer, Vol. 13, pp. 319-343, 1970.
P. M. Worsoe-Schmidt, G. Leppert, Heat Transfer and Local Friction for Laminar Flow of Gas in a Circular Tube at High Heating Rate, International Journal of Heat and Massr Transfer, Vol. 8, pp. 1281-1301, 1965.
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