Heat and mass transfer in a high temperature packed moving bed subject to an external radiative source

A numerical model of a moving chemical bed reactor for gasifying coal using concentrated solar radiation is proposed. It permits the determination of the temperature profiles for both the gas and the solid phases, the velocity and the pressure drop profiles as a function of control parameters such as incident radiative flux, gas flow rate and particle size. The results of this model are in a satisfactory agreement with the experiment ones.

[1]  D. Kunii,et al.  Heat transfer characteristics of porous rocks: II. Thermal conductivities of unconsolidated particles with flowing fluids , 1961 .

[2]  James W. Evans,et al.  Gas-solid reactions , 1976 .

[3]  S. Patankar Numerical Heat Transfer and Fluid Flow , 2018, Lecture Notes in Mechanical Engineering.

[4]  C. B. Thorsness,et al.  Solar coal gasification , 1980 .

[5]  R. Hering,et al.  Transient Combined Conductive and Radiative Heat Transfer , 1972 .

[6]  D. Kunii,et al.  Heat transfer characteristics of porous rocks , 1960 .

[7]  Study of heat and mass transfer in a chemical moving bed reactor for gasification of carbon using an external radiative source , 1989 .

[8]  D. Gunn Transfer of heat or mass to particles in fixed and fluidised beds , 1978 .

[9]  C. B. Thorsness,et al.  Solar coal gasification: plant design and economics , 1981 .

[10]  V. A. Borodulya,et al.  Radiative heat transfer between a fluidized bed and a surface , 1983 .

[11]  K. H. van Heek,et al.  Gasification of coal with steam using heat from HTRs , 1975 .

[12]  R. Berjoan,et al.  Solar gasification of carbonaceous materials , 1983 .

[13]  D. W. Gregg,et al.  Solar gasification of coal, activated carbon, coke and coal and biomass mixtures☆ , 1980 .

[14]  J. Gadsby,et al.  The mechanism of the carbon dioxide-carbon reaction , 1948, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[15]  I. Barin,et al.  Thermochemical properties of inorganic substances , 1973 .