Early Detection of Agglomeration in Conical Spouted Beds Using Recurrence Plots

Download

index.pdf

Date

2016-07-06

Author

Savari, Chiya
Külah, Görkem
Sotudeh-Gharebagh, Rahmat
Mostoufi, Navid
KÖKSAL, MURAT

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

171
views

160
downloads

The agglomeration of particles in a conical spouted bed was investigated using a recurrence plot (RP) and recurrence quantification analysis (RQA) of the pressure fluctuations (PFs) and acoustic emission (AE) signals. Experiments were carried out in a 45 degrees conical spouted bed with sugar particles (d(P) = 720 mu m; rho(p) = 1580 kg/m(3)). Water was sprayed incrementally into the bed to produce agglomerates during the operation. Several recurrence quantification parameters were calculated during the agglomeration process, and the most suitable ones were chosen for early prediction of the agglomeration in the bed. The results show that recurrence rate, determinism, and laminarity of PFs and AE signals increase during the agglomeration process, which indicate that bed behavior becomes more periodic and deterministic in nature. Additional examination of the RQA parameters show that AE signals are substantially more sensitive to the hydrodynamic changes that occur in the bed, compared to those of PFs, and therefore can detect changes earlier, with more accuracy.

Subject Keywords

Optical-fiber probe, Pressure-fluctuations, Fluidized-beds, Quantification analysis, Mutual information, Wet particles, Flow regimes, Time-series, Systems, Identification

URI

https://hdl.handle.net/11511/47491

Journal

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

DOI

https://doi.org/10.1021/acs.iecr.6b00687

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

A new correlation for minimum spouting velocity for conical spouted beds operating with high density particles GOLSHAN, Shahab; YAMAN, Onur; KÖKSAL, MURAT; Külah, Görkem; ZARGHAMI, Reza; MOSTOUFI, Navid (Elsevier BV, 2018-09-01) Hydrodynamics of conical spouted beds operating with high density particles was studied by means of measuring the minimum spouting velocity and analysis of pressure signals in time and frequency domains. Three different types of particles, zirconia (d(p) = 1 mm; rho(p) = 6050 kg/m(3)), zirconia toughened alumina (rho(p) = 3700 kg/m(3); d(p) = 1, 2 and 2.4 mm) and glass beads (rho(p) = 2460 kg/m(,)(3) d(p) = 1 and 2 mm) were used in the experiments. Experiments were performed in three small scale (gamma = 30...
Understanding the Effects of Ion-Exchange in Titanosilicate ETS-10: A Joint Theoretical and Experimental Study Koc, Mehmet; Galioglu, Sezin; Toffoli, Daniele; Toffoli, Hande; Akata Kurç, Burcu (2014-11-27) Density functional theory (DFT) calculations within the gradient-corrected approximation (GGA) were carried out on two models of Engelhard titanosilicate (ETS-10) with the aim to elucidate the effect of ion exchange on the structural and electronic properties of the TiOTi quantum wire. The partial and full exchange of Na+ cations with alkaline, earth-alkaline, and transition metal ions have been investigated. The theoretical results have been complemented by experimental X-ray diffraction (XRD) and Raman da...
Detecting stability of conical spouted beds based on information entropy theory Savari, Chiya; Sotudeh-Gharebagh, Rahmat; Külah, Görkem; KÖKSAL, MURAT; Mostoufi, Navid (Elsevier BV, 2019-02-01) Effects of particle size, particle density, gas inlet diameter and static bed height on the stability of operation in conical spouted beds were investigated through analyses of information entropy of pressure fluctuations. In this respect, the maximum information entropy of pressure fluctuations was used as a stability criterion. The results showed that stability of the bed increases with an increase in the maximum entropy. The maximum information entropy of pressure fluctuations increases with increasing p...
Monitoring of liquid sprayed conical spouted beds by recurrence plots Savari, Chiya; Külah, Görkem; KÖKSAL, MURAT; Sotudeh-Gharebagh, Rahmat; Zarghami, Reza; Mostoufi, Navid (Elsevier BV, 2017-07-01) In this study, the chaotic behavior of gas-solid flow in a laboratory scale conical spouted bed during spraying of water on the sugar particles was investigated using non-linear analyses of pressure fluctuations (PFs) and acoustic emission (AE) signals. The phase space trajectories, recurrence plots (RP) and recurrence quantification analyses (RQA), as powerful non-linear techniques, were used for monitoring of the bed hydrodynamics. It was concluded that the reconstructed phase space trajectories of both P...
Optimization of an integrated bombardment and agrobacterium infiltration based transformation system for lentil Çelikkol, Ufuk; Öktem, Hüseyin Avni; Küsmenoğlu, İsmail; Department of Biotechnology (2002) In this study, the effect of microwounding by particle bombardment and the coupling of vacuum infiltration to Agrobacteritim-mediated transformation, on the efficiency of transient GUS expression of cotyledonary node tissues were investigated. In each experimental set with any Agrobacterium/pia&mid couple, five different treatments were applied to compare the efficiency of integrated bombardment-infiltration system to reference treatments. Throughout the study also the efficiencies of four strains, LBA4404,...

Citation Formats

C. Savari, G. Külah, R. Sotudeh-Gharebagh, N. Mostoufi, and M. KÖKSAL, “Early Detection of Agglomeration in Conical Spouted Beds Using Recurrence Plots,” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, pp. 7179–7190, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47491.