Abstract
This paper is concerned with a review of heat and mass transfer between thermal plasmas and particulate matter. In this situation various effects which are not present in ordinary heat and mass transfer have to be considered, including unsteady conditions, modified convective heat transfer due to strongly varying plasma properties, radiation, internal conduction, particle shape, vaporization and evaporation, noncontinuum conditions, and particle charging. The results indicate that (i) convective heat transfer coefficients have to be modified due to strongly varying plasma properties; (ii) vaporization, defined as a mass transfer process corresponding to particle surface temperatures below the boiling point, describes a different particle heating history than that of the evaporation process which, however, is not a critical control mechanism for interphase mass transfer of particles injected into thermal plasmas; (iii) particle heat transfer under noncontinuum conditions is governed by individual contributions from the species in the plasma (electrons, ions, neutral species) and by particle charging effects.
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References
E. Pfender and Y. C. Lee, “Particle Dynamics and Particle Heat and Mass Transfer in Thermal Plasmas. Part I: The Motion of a Single Particle without Thermal Effects,”Plasma Chem. Plasma Process. 5, 211 (1985).
B. Waldie, “Review of Recent Work on the Processing of Powders in High-Temperature Plasmas. Part II: Particle Dynamics, Heat Transfer and Mass Transfer,”Chem. Eng. (London), May, 188 (1972).
J. A. Lewis and W. H. Gauvin, “Motion of Particles Entrained in a Plasma Jet,”AIChE J. 19, 982 (1973).
C. Bonet, M. Daguenet, and M. Dumargue, “Etude theorique de l'evaporation d'une particule spherique d'un materiau refractaire dans un plasma thermique,”Int. J. Heat Mass Transfer 17, 643, 1559 (1974).
P. D. Johnston, “The Rate of Decomposition of Silica Particles in an Augmented Flame,”Combust. Flame 18, 373 (1972).
F. J. Harvey and T. N. Meyer, “A Model of Liquid Metal Droplet Vaporization in Arc-Heated Gas Streams,”Metall. Trans. B 9, 615 (1978).
M. I. Boulos, “Heating of Powders in the Fire Ball of an Induction Plasma,”IEEE Tran. Plasma Sci. PS-6, 93 (1978).
T. Yoshida and K. Akashi, “Particle Heating in a Radio-Frequency Plasma Torch,”J. Appl. Phys. 48, 2252 (1977).
J. K. Fiszdon, “Melting of Powder Grains in a Plasma Flame,”Int. J. Heat Mass Transfer 22, 749 (1979).
N. N. Sayegh and W. H. Gauvin, “Numerical Analysis of Variable-Property Heat Transfer to a Single Sphere in High Temperature Surroundings,”AIChE J. 25, 522 (1979).
N. N. Rykalin, A. A. Uglov, Yu. N. Lokhov, and A. G. Gnedovets, “Properties of Heating of Submicron Metal Particles in a Hot Gas,”High Temp. 19, 404 (1981).
Y. C. Lee, K. C. Hsu, and E. Pfender, “Modeling of Particles Injected into a D.C. Plasma Jet,” Fifth International Symposium on Plasma Chemistry, Vol. 2, Heriot-Watt University, Edinburgh, Scotland (1981), p. 795.
Y.C. Lee, “Trajectories and Heating of Particles Injected into a Thermal Plasma,” Master Thesis, Department of Mechanical Engineering, University of Minnesota (1982).
E. H. Randhawa and W. H. Gauvin, “Effect of Mass Transfer on the Rate of Heat Transfer to Stationary Spheres in High-Temperature Surroundings,” 7th Int. Heat Transfer Conference, Munich, Germany (1982).
E. Bourdin, P. Fauchais, and M. I. Boulos, “Transient Heat Conduction under Plasma Conditions,”Int. J. Heat Mass Transfer 26, 567 (1983).
X. Chen and E. Pfender, “Heat Transfer to a Single Particle Exposed to a Thermal Plasma,”Plasma Chem. Plasma Process. 2, 185 (1982).
X. Chen and E. Pfender, “Unsteady Heating and Radiation Effects of Small Particles in a Thermal Plasma,”Plasma Chem. Plasma Process. 2, 293 (1982).
X. Chen and E. Pfender, “Effect of the Knudsen Number on Heat Transfer to a Particle Immersed into a Thermal Plasma,”Plasma Chem. Plasma Process. 3, 97 (1983).
X. Chen and E. Pfender, “Behavior of Small Particles in a Thermal Plasma Flow,”Plasma Chem. Plasma Process. 3, 351 (1983).
M. Vardelle, A. Vardelle, P. Fauchais, and M. I. Boulos, “Plasma-Particle Momentum and Heat Transfer: Modeling and Measurement,”AIChE J. 29, 236 (1983).
N. Konopliv and E. M. Sparrow, “Unsteady Heat Transfer and Temperature for Stokesian Flow about a Sphere,”J. Heat Transfer, 266 (1972).
P. K. Chang,Separation of Flow, Pergamon Press, New York (1970), p. 199.
I. S. Pasternak and W. H. Gauvin, “Turbulent Heat and Mass Transfer for Stationary Particle,”Can. J. Chem. Eng. 38, 35 (1960).
R. B. Bird, W. E. Stewart, and E. N. Lightfoot,Transport Phenomena, Wiley, New York (1960).
W. M. Kays and M. E. Crawford,Convective Heat and Mass Transfer, 2nd edn., McGraw-Hill, New York (1980).
D. B. Spalding, “The Combustion of Liquid Fuels,”4th Symposium (International) on Combustion, Williams and Wilkins, Baltimore, Maryland (1953), pp. 847–864.
X. Chen, Y. C. Lee, and E. Pfender, “The Importance of Knudsen and Evaporation Effect,” 6th International Symposium on Plasma Chemistry, Montreal, Canada (1983).
R. Godard and J. S. Chang, “Local and Total Heat Transfer on a Sphere in a Free Molecular Ionized Gas Flow,”J. Phys. D.: Appl. Phys. 13, 2005 (1980).
B. Y. H. Liu, K. T. Whitby, and H. H. S. Yu, “On the Theory of Charging of Aerosol Particles by Unipolar Ions in the Absence of an Applied Electric Field,”J. Colloid Interface Sci. 23, 367 (1967).
J. S. Chang, “Theory of Diffusion Charging of Arbitrarily Shaped Conductive Aerosol Particles by Unipolar Ions,”J. Aerosol Sci. 12, 19 (1981).
N. A. Fuchs, “On the Stationary Charge Distribution on Aerosol Particles in a Bipolar Ionic Atmosphere,”Pure Appl. Geophys. 186 (1963).
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Lee, Y.C., Chyou, Y.P. & Pfender, E. Particle dynamics and particle heat and mass transfer in thermal plasmas. Part II. Particle heat and mass transfer in thermal plasmas. Plasma Chem Plasma Process 5, 391–414 (1985). https://doi.org/10.1007/BF00566011
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DOI: https://doi.org/10.1007/BF00566011