A system dynamic modeling to evaluate fluidized bed dryers under tempering and recirculation strategies
Vol 7, Issue 1, 2024
VIEWS - 118 (Abstract) 46 (PDF)
Abstract
Grain drying control strategies aim for a rational energy use and a final product with low breakage levels. However, an experimental approach may be prohibitive due to the costs, scale, and theoretical complexity of this operation. The simulation environment is suitable to design equipment’s and plan operations strategies with low cost and high certainty. This work utilized system dynamics modelling to quantify the percentage of product breakage during drying in fluidized bed dryers under recirculation and tempering strategies. A sensitivity analysis of the model’s input parameters including different fractions of recirculation was performed, showing their effects on drying and post-drying product quality. Finally, we present optimizations from different objectives of drying operations. The recirculation strategy worked as an attenuator to the drying rates and combined with tempering strategy reached a minimum breakage level.
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1. Abasi S, Minaei S. Effect of Drying Temperature on Mechanical Properties of Dried Corn. Drying Technology. 2014, 32(7): 774–780. doi: 10.1080/07373937.2013.845203
2. Li C, Fang Z, Zhong J, et al. Evaluating the dynamic characteristics and energetic performance of a paddy multistage counter-flow dryer. Biosystems Engineering. 2022, 221: 208–223. doi: 10.1016/j.biosystemseng.2022.07.003
3. Lorenzoni RK, Binelo MO, Khatchatourian O, et al. B. Binelo M. Quasi-2D simulation of soya beans flow in mixed flow dryer. Journal of Stored Products Research. 2020, 89: 101727. doi: 10.1016/j.jspr.2020.101727
4. Amantéa RP, Fortes M, Ferreira WR, et al. Energy and exergy efficiencies as design criteria for grain dryers. Drying Technology. 2017, 36(4): 491–507. doi: 10.1080/07373937.2017.1409232
5. Chen Z, Wassgren C, Ambrose K. A Review of Grain Kernel Damage: Mechanisms, Modeling, and Testing Procedures. Transactions of the ASABE. 2020, 63(2): 455–475. doi: 10.13031/trans.13643
6. Souza GFMV, Avendaño PS, Ferreira FRC, et al. A study on a novel system for soybean seeds drying: Performance and seed quality. Drying Technology. 2021, 40(14): 2872–2879. doi: 10.1080/07373937.2021.1970579
7. Anand A, Gareipy Y, Raghavan V. Fluidized bed and microwave-assisted fluidized bed drying of seed grade soybean. Drying Technology. 2020, 39(4): 507–527. doi: 10.1080/07373937.2019.1709495
8. Xu X, Zhao T, Ma J, et al. Application of Two-Stage Variable Temperature Drying in Hot Air-Drying of Paddy Rice. Foods. 2022, 11(6): 888. doi: 10.3390/foods11060888
9. Sarker MSH, Ibrahim MN, Aziz NA, et al. Drying Kinetics, Energy Consumption, and Quality of Paddy (MAR-219) during Drying by the Industrial Inclined Bed Dryer with or without the Fluidized Bed Dryer. Drying Technology. 2013, 31(3): 286–294. doi: 10.1080/07373937.2012.728270
10. Zohrabi S, Aghbashlo M, Seiiedlou SS, et al. Energy saving in a convective dryer by using novel real-time exergy-based control schemes adjusting exhaust air recirculation. Journal of Cleaner Production. 2020, 257: 120394. doi: 10.1016/j.jclepro.2020.120394
11. Giner SA, de Michelis A. Evaluation of the thermal efficiency of wheat drying in fluidized beds: Influence of air temperature and heat recovery. Journal of Agricultural Engineering Research. 1988, 41(1): 11–23. doi: 10.1016/0021-8634(88)90199-0
12. Darvishi H, Azadbakht M, Noralahi B. Experimental performance of mushroom fluidized-bed drying: Effect of osmotic pretreatment and air recirculation. Renewable Energy. 2018, 120: 201–208. doi: 10.1016/j.renene.2017.12.068
13. Geng Z, Wang H, Torki M, et al. Thermodynamically analysis and optimization of potato drying in a combined infrared/convective dryer. Case Studies in Thermal Engineering. 2023, 42: 102671. doi: 10.1016/j.csite.2022.102671
14. Wang H, Che G, Wan L, et al. Effects of drying approaches combined with variable temperature and tempering on the physicochemical quality of rice. Drying Technology. 2022, 41(7): 1199–1213. doi: 10.1080/07373937.2022.2133140
15. Prachayawarakorn S, Bootkote P, Soponronnarit S. Appropriate operating condition for golden color parboiled rice production by high temperature fluidized bed drying and tempering. Drying Technology. 2022, 40(16): 3648–3660. doi: 10.1080/07373937.2022.2074445
16. Brito RC, Zacharias MB, Forti VA, et al. Physical and physiological quality of intermittent soybean seeds drying in the spouted bed. Drying Technology. 2020, 39(6): 820–833. doi: 10.1080/07373937.2020.1725544
17. Abdoli B, Zare D, Jafari A, et al. Evaluation of the air-borne ultrasound on fluidized bed drying of shelled corn: Effectiveness, grain quality, and energy consumption. Drying Technology. 2018, 36(14): 1749–1766. doi: 10.1080/07373937.2018.1423568
18. Li X, Wang X, Li Y, et al. Changes in moisture effective diffusivity and glass transition temperature of paddy during drying. Computers and Electronics in Agriculture. 2016, 128: 112–119. doi: 10.1016/j.compag.2016.08.025
19. Sun X, Guo M, Ma M, et al. Identification and classification of damaged corn kernels with impact acoustics multi-domain patterns. Computers and Electronics in Agriculture. 2018, 150: 152–161. doi: 10.1016/j.compag.2018.04.008
20. García JM. Theory and Practical Exercises of System Dynamics: Modeling and Simulation with Vensim PLE. Preface John Sterman. Juan Martín García, 2020.
21. Amantea RP, Balbino GPA, Fortes M. Dynamic analysis of grain quality during drying in fluidised beds. Biosystems Engineering. 2023, 228: 149–165. doi: 10.1016/j.biosystemseng.2023.03.007
22. Franca AS, Fortes M, Haghighl K. Numerical simulation of intermittent and continuous deep-bed drying of biological materials. Drying Technology. 1994, 12(7): 1537–1360. doi: 10.1080/07373939408962186
23. Zohrabi S, Seiiedlou SS, Aghbashlo M, et al. Enhancing the exergetic performance of a pilot-scale convective dryer by exhaust air recirculation. Drying Technology. 2019, 38(4): 518–533. doi: 10.1080/07373937.2019.1587617
24. Bala BK. Drying and storage of cereal grains. John Wiley & Sons; 2016.
DOI: https://doi.org/10.24294/ace.v7i1.3276
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