Abstract
A rapid heuristic computational algorithm for optimizing the energy and resource efficiency of a local process of multistage drying of a moving mass of phosphorite pellets was developed. The algorithm is distinguished by the use of heuristic computational procedures and heuristic rules of the iterative construction of a vector criterion of the efficiency of the chemical and energy engineering system. The criterion takes into account the energy consumption cost and the pellet quality indicators using both special barrier functions for deterministic constraints on control process variables (feed velocity and temperature of the carrier gas), and penalty functions for state variables of a local drying process (temperature gradient, heating rate, moisture content, moisture-transfer rate in pellets, temperature of the carrier gas at the outlet of the vertical multilayer pellet packing). Using the developed algorithm and software package, the scientifically grounded, optimal in energy consumption and dried pellet quality, operating conditions in local zones of drying of a travelling grate machine were determined.
Similar content being viewed by others
REFERENCES
Meshalkin, V.P., Resursoenergoeffektivnye metody energoobespecheniya i minimizatsii otkhodov neftepererabatyvayushchikh proizvodstv. Osnovy teorii i nailuchshie prakticheskie rezul’taty (Resource-Efficient Methods of Energy Supply and Minimization of Waste from Refining Industries. Fundamentals of Theory and Best Practical Results), Moscow, Genuya: Khimiya, 2010.
Meshalkin, V.P., Bobkov, V.I., Dli, M.I., and Khodchenko, S.M., Dokl. Chem., 2017, vol. 475, part 2, pp. 188–191.
Meshalkin, V.P., Bobkov, V.I., Dli, M.I., and Khodchenko, S.M., Dokl. Chem., 2017, vol. 477, part 21, pp. 286–289.
Chodzhoi, M.Kh., Energosberezhenie v promyshlennosti (Energy Saving in Industry), Moscow: Metallurgiya, 1982.
Luis, P. and Van der Bruggen, B., J. Chem. Technol. Biotechonol., 2014, vol. 89, no. 9, pp. 1288–1303.
Elgharbi, S., Horchani-Naifer, K., and Ferid, M., J. Therm. Anal. Calorim., 2015, vol. 119, no. 1, pp. 265–271.
Bokovikov, B.A., Bragin, V.V., and Shvydkii, V.S., Stal., 2014, no. 8, pp. 43–48.
Rudobashta, S.P., J. Eng. Phys. Thermophys., 2010, vol. 83, no. 4, pp. 753–763.
Bobkov, V.I., Borisov, V.V., Dli, M.I., and Meshalkin, V.P., Theor. Found. Chem. Eng., 2015, vol. 49, no. 6, pp. 842–846.
Himmelblau, D.M., Applied Nonlinear Programming, Mc-Graw-Hill, 1972. Translated under the title Prikladnoe nelineinoe programmirovanie, Moscow: Mir, 1975.
FUNDING
This work was supported in the framework of the basic part of Government Assignment of the Ministry of Education and Science of the Russian Federation for performing scientific research (project no. 13.9597.2017/BCh).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by V. Glyanchenko
Rights and permissions
About this article
Cite this article
Meshalkin, V.P., Bobkov, V.I., Dli, M.I. et al. Optimizing the Energy Efficiency of a Local Process of Multistage Drying of a Moving Mass of Phosphorite Pellets. Dokl Chem 486, 144–148 (2019). https://doi.org/10.1134/S0012500819050070
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0012500819050070