Solids transport in mixed-flow dryers

Powder Technology

Volumn 205, Issue 1-3, 2011, Pages 117-125

  Mellmann, J ^a   Teodorov, T ^a  

^a LEIBNIZ INSTITUTE FOR AGRICULTURAL ENGINEERING AND BIOECONOMY ATB   (Germany)

Author keywords

Discharge characteristic; Discharge gate; Mixed flow dryer; Particle flow; Solids mass flow rate

Indexed keywords

ACRYLIC GLASS; AIR FLOW; APPARATUS DESIGN; BASIC EQUATIONS; BED MATERIALS; DISCHARGE CHARACTERISTICS; DISCHARGE GATE; DRYING HISTORY; DRYING PROCESS; EXPERIMENTAL INVESTIGATIONS; FLOW REGIMES; FRONT WALLS; MASS FLOW; MASS FLOW RATE; MIXED-FLOW DRYER; NONUNIFORM; PARTICLE FLOW; PRODUCT QUALITY; RESIDENCE TIME DISTRIBUTIONS; SOLIDS TRANSPORT; TEST STATION;

DRYERS (EQUIPMENT); ENERGY EFFICIENCY; MASS TRANSFER; PIPE FLOW; QUALITY CONTROL;

DRYING;

AGRICULTURAL PROCEDURES; AIRFLOW; ARTICLE; EQUIPMENT; FLOW RATE; GRAIN; MATHEMATICAL PARAMETERS; MIXED FLOW DRYER; SOLID;

EID: 78049257728     PISSN: 00325910     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.powtec.2010.08.073     Document Type: Article

References (27)

1. Brooker D.B., Bakker-Arkema F.W., Hall C.W. Drying and Storage of Grains and Oilseeds 1992, Van Nostrand Reinhold, New York.
2. Nellist M.E., Bruce D.M. Heated-air grain drying. Stored-Grain Ecosystems 1995, 609-659. Marcel Dekker Inc., New York. D.S. Jayas, N.D.G. White, W.E. Muir (Eds.).
3. Mühlbauer W. Trocknen von Getreide. Trocknungstechnik, Band 3 1989, 64-93. Springer-Verlag, Berlin. K. Kröll, W. Kast (Eds.).
4. Maltry W. Einige Untersuchungen zur Aufklärung des Verhaltens von Getreide im Dächer-Schachttrockner. Archiv für Landtechnik 1966, 5:223-264.
5. J. Klinger, Einige thermodynamische und strömungstechnische Untersuchungen zur Modellierung der Vorgänge in Dächerschachttrocknern für Getreidekörner, Ph.D. Dissertation, TU Dresden, 1977.
6. Cenkowski S., Miketinac M., Kelm A. Airflow patterns in a mixed-flow dryer. J. Can. Agric. Eng. 1990, 32:85-90.
7. Bruce D.M. Simulation of multiple-bed concurrent-, counter-, and mixed-flow grain driers. J. Agric. Eng. Res. 1984, 30:361-372.
8. McFarlane N.J.B., Bruce D.M. Control of mixed-flow grain driers: development of a feedback-plus-feedforward algorithm. J. Agric. Eng. Res. 1991, 49:243-258.
9. Giner S.A., Bruce D.M., Mortimore S. Two-dimensional simulation model of steady-state mixed-flow grain drying. Part 1: the model. J. Agric. Eng. Res. 1998, 71:37-50.
10. Giner S.A., Bruce D.M. Two-dimensional simulation model of steady-state mixed-flow grain drying. Part 2: experimental validation. J. Agric. Eng. Res. 1998, 71:51-66.
11. Miller P.C., Whitfield R.D. The predicted performance of a mixed-flow grain dryer. J. Agric. Eng. Res. 1984, 30:373-380.
12. Courtois F., Nouafo J.L., Trystram G. Control strategies for corn mixed-flow dryers. Dry. Technol. 1995, 13:147-164.
13. Liu H., Zhang J., Tang X., Lu Y. Fuzzy control of mixed-flow grain dryer. Dry. Technol. 2003, 21:807-819.
14. Cao C.W., Yang D.Y., Liu Q. Research on modeling and simulation of mixed-flow grain dryer. Dry. Technol. 2007, 25:681-687.
15. Mellmann J., Richter I.-G., Maltry W. Experiments on hot-air drying of wheat in a semi-technical mixed-flow dryer. Dry. Technol. 2007, 25:1287-1295.
16. Kocsis L., Teodorov T., Mellmann J., Gottschalk K., Meszaros C., Farkas I. Analysis of grain flow experiments in a mixed-flow grain dryer. Proceedings of the 17th World Congress of International Federation of Automatic Control (IFAC), Seoul, Korea July 6-11, 2008, 1608-1612.
17. K.L. Iroba, F. Weigler, J. Mellmann, T. Metzger, E. Tsotsas, Residence Time Distribution in Mixed-Flow Grain Dryers, Dry. Technol. 28 (2010) 11, in press.
18. Schulze D. Powders and Bulk Solids 2008, Springer Verlag, Berlin.
19. Schwedes J. Fließverhalten von Schüttgütern in Bunkern 1968, Verlag Chemie, Weinheim, Germany.
20. Brown R.L., Richards J.C. Principles of Powder Mechanics 1970, Pergamon Press, Oxford, UK.
21. Nedderman R.M., Tüzün U., Savage S.B., Houlby G. The flow of granular materials. Chem. Eng. Sci. 1982, 37:1597-1609.
22. British Standards Institution (Ed.), Draft design code for silos, bins, bunkers and hoppers, published by BSI in association with the British Materials Handling Board, 1987.
23. H. Kruggel-Emden, S. Rickelt, S. Wirtz, V. Scherer, A Numerical Study on the Sensitivity of the Discrete Element Method for Hopper Discharge. J. Press. Vessel Technol. - Trans. ASME 131 (2009) Art. No. 031211.
24. Coetzee C.J., Els D.N.J. Calibration of discrete element parameters and the modelling of silo discharge and bucket filling. Comput. Electron. Agric. 2009, 65:198-212.
25. Li Y.J., Yong X., Jiang S.Y. DEM simulations and experiments of pebble flow with monosized spheres. Powder Technol. 2009, 193:312-318.
26. Tao H., Jin B.S., Zhong W.Q., Wang X.F., Ren B., Zhang Y., Xiao R. Discrete element method modeling of non-spherical granular flow in rectangular hopper. Chem. Eng. Proc. 2010, 49:151-158.
27. S. Regner, Kernel mass related properties of cereal grains, PhD dissertation, Swedish University of Agricultural Sciences, Uppsala, 1995.