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Gianandrea Vittorio Messa and Stefano Malavasi

-222. Doron, P., Barnea, D., 1996. Flow pattern maps for solid-liquid flow in pipes. Int. J. Multiphase Flow, 22, 273-283. Ekambara, K., Sanders, R.S., Nandakumar, K., Masliyah, J.H., 2009. Hydrodynamic simulation of horizontal slurry pipeline flow using ANSYS-CFX. Ind. Eng. Chem. Res., 48, 8159-8171. Fessler, J.R., Eaton, J.K., 1999. Turbulence modification by particles in a backward-facing step flow. J. Fluid Mech., 394, 97-117. Founti, M., Klipfel, A., 1998. Experimental and computational investigations of nearly dense two

Open access

Manoj Kumar Gopaliya and D.R. Kaushal

.G., Shook, C.A., 1994. Concentration Distributions of sand slurries in horizontal pipe flow. Particulate Science and Technology: An International Journal, 12, 1, 45-69. Gillies, R.G., Hill, K.B., Mckibben, M.J., Shook, C.A., 1999. Solids transport by laminar Newtonian flows. Powder Technology, 104, 269-277. Gillies, R.G., Shook, C.A., 2000. Modeling high concentration settling slurry flows. The Canadian Journal of Chemical Engineering, 78, 709-716. Gopaliya, M.K., Kaushal, D.R., 2015. Analysis of effect of particle size on

Open access

Artur Bartosik

Combustion, Springer-Verlag, 2009, vol. 84, No. 2, pp. 277-293. Doron P., Barnea D.: Flow pattern maps for solid liquid flow in pipes. Int. J. Multiphase Flow, 1996, vol. 22, pp. 273-283. Televantos Y., Shook C.A., Carleton A.: Street, M.: Flow of slurries of coarse particles at high solid concentration. Can. J. Chem. Eng., 1979, vol. 57, pp. 255-262. Wasp E.J., Kenny J.P., Gandhi R.L.: Solid-liquid flow slurry pipeline transportation. Ser. on Bulk Materials Handling, Trans. Tech. Publications

Open access

Gianandrea Vittorio Messa and Stefano Malavasi

, 1144-1154. Clift, R., Grace, J.R., Weber, M.E., 1978. Bubbles, Drops and Particles. Academic Press, London. Doron, P., Barnea, D., 1996. Flow pattern maps for solid-liquid flow in pipes. Int. J. Multiphase Flow, 22, 273-283. Doron, P., Granica, D., Barnea, D., 1987. Slurry flow in horizontal pipes - experimental and modeling. Int. J. Multiphase Flow, 13, 535-547 . Duz, H., 2007. Theoretical Analysis of Sudden Expansion Fittings in Pneumatic Conveying System. M.Sc. Thesis, University of Gaziantep

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Min Zhang, Shidong Fan, Hanhua Zhua and Sen Han

, Vol. 31, no.2, pp.37-38, 2011 4. Liu Juan, Xu Hongyuan, Tang Shu, Lu Li: Numerical Simulation of Erosion and Particle Motion Trajectory in Centrifugal Pump. Chinese Journal of Agricultural Machinery, Vol. 6, no. 2, pp.54-59, 2008 5. Zhang Tao, Li Hongwen: Simulation Optimization of DPM on Gas-Solid Two-Phase Flow in Complex Pipeline Flow Field. Journal of Tianjin Unversity (Science and Technology). Vol.48, no. 1, pp.39-46, 2015 6. Xu Yanxia, Song Xingfu, Tang Bo, Wang Jin, Yu Jianguo: Analysis Structural Parameters of Hydrocyclone used in Ballast

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Zbigniew Chaniecki, Krzysztof Grudzień, Tomasz Jaworski, Grzegorz Rybak, Andrzej Romanowski and Dominik Sankowski

References [1] Z. Chaniecki, T. Dyakowski, M. Niedostatkiewicz, D. Sankowski, Application of electrical capacitance tomography for bulk solids flow analysis in silos, Particle & Particle Systems Characterization, Vol. 23, No. 3-4, pp. 306-312, 2006 [2] K. Grudzień, A. Romanowski, Z. Chaniecki, M. Niedostatkiewicz, D. Sankowski, Description of the silo flow and bulk solid pulsation detection using ECT, Flow Measurements and Instrumentation, Vol. 21, pp. 198-206, 2010 [3] J.Korbicz, J.M. Kościelny, Z

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Hamid Bouchelkia, Fadila Belarbi and Boualem Remini

'oued Mouillah. Le journal de l'eau et de l'environnement. No. 19 p. 29–41. Bouchelkia H., Belarbi F., Remini B. 2013. Estimated flows of suspended solids by the statistical analysis of outfall drainage basin of Tafna (Algeria). Soil and Water Resources. Vol. 8 p. 63–70. Bouchelkia H., Remini B. 2003. Quantification du transport solide dans le bassin versant algérien du Chellif. Ingénieries. No. 33 p. 45–56. Bouchelkia H., Remini B. 2011. Etude du transport solide en suspension dans un bassin versant – cas du bassin versant de Chellif – Algérie. Sarrebruck

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Václav Matoušek, Vojtěch Bareš, Jan Krupička, Tomáš Picek and Štěpán Zrostlík

. Concentration profiles and solids transport above stationary deposit in enclosed conduit. Journal of Hydraulic Engineering ASCE, 135, 12, 1101–1106. Matoušek, V., 2011. Solids transport formula in predictive model for pipe flow of slurry above deposit. Particulate Science and Technology, 29, 1, 89–106. Matoušek, V., Krupička, J., 2014. Interfacial friction and transport in stratified flows. In: Proceedings of the ICE -Maritime Engineering, 167, 3, 125–134. Matoušek, V., Krupička, J., Picek, T., 2013. Validation of transport and friction formulae for upper

Open access

Artur Poświata and Zbigniew Szwast

Abstract

In this study the authors minimise the total process cost for the heating of solid particles in a horizontal fluidised bed by an optimal choice of the inlet heating gas temperature profile and the total gas flow. Solid particles flowed along the apparatus and were heated by a hot gas entering from the bottom of the fluidised apparatus. The hydrodynamics of the fluidised bed is described by a two-phase Kunii - Levenspiel model. We assumed that the gas was flowing only vertically, whereas solid particles were flowing horizontally and because of dispersion they could be additionally mixed up in the same direction. The mixing rate was described by the axial dispersion coefficient. As any economic values of variables describing analysing process are subject to local and time fluctuations, the accepted objective function describes the total cost of the process expressed in exergy units. The continuous optimisation algorithm of the Maximum Principle was used for calculations. A mathematical model of the process, including boundary conditions in a form convenient for optimisation, was derived and presented. The optimization results are presented as an optimal profile of inlet gas temperature. The influence of heat transfer kinetics and dispersion coefficients on optimal runs of the heating process is discussed. Results of this discussion constitute a novelty in comparison to information presented in current literature.

Open access

P. Migas

Abstract

The rheological properties of liquid and semi-solid systems of slag and hot metal in a blast furnace are extremely important from the perspective of their dripping in the unit. The rheological nature and the values of the dynamic viscosity coefficient of liquid and semi-solid phases - slag and hot metal - determine the permeability of the zones in which those systems exist. The modelling of dripping processes and e.g. static and dynamic holding/retention of liquid in the bed, requires an accurate description of the rheological behaviour of slag and iron systems. Determining the liquid flow through the lump bed of the blast furnace is based on the assumption that liquids in the unit in the whole range of their occurrence are similar to a Newtonian ideal liquid. This study presents an analysis of the findings of high-temperature rheometric measurements of CaO-SiO2-Al2O3-MgO systems, liquid, semi-solid slags of the blast furnace type doped with TiO2 and solids in the form of TiN. The tests were performed within a temperature range of 1310-1490°C. Also measurement results for glycerol solutions with concentrations of 86% and 100% at the ambient temperature, simulating blast furnace slags with various contents of solids - PC, anthracite - are presented.