Measurement of dynamic pulsations in bulk solid during silo discharging using ECT method

• Autorzy: Grudzień K. , Chaniecki Z. , Niedostatkiewicz M. , Romanowski A. , Sankowski D.
• Języki publikacji: EN

Abstrakty

EN

Paper will focus on the results of tests with the slender cylindrical silo emptied both gravitationally and in controlled manner. The influence of the initial density, wall roughness, height and velocity on the emptying process will be presented. During tests values of the vertical and horizontal accelerations on the silo wall were measured, the effect of the outlet velocity and level of the dynamic effects were compared. Results will be presented in the form of continuous graphs, which allow to analyse the entire process in simpler way comparing to tomographic images form. It is a better form of presentation in order to work out settings for process control, as well.

Słowa kluczowe

EN

electrical capacitance tomography; ECT; bulk solid concentration measurement; silo investigation; monitoring; diagnosis processes

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Elektryka / Politechnika Łódzka
• Rocznik: 2009
• Tom: z. 114
• Strony: 35--40
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Grudzień K.

autor

Chaniecki Z.

autor

Niedostatkiewicz M.

autor

Romanowski A.

autor

Sankowski D.

• Computer Engineering Department, Technical University of Łódź, Poland,

Bibliografia

• BATES L., (1999), Problems In Particulate Flow, Part A - Flow Regimes, Ajax Equipment Ltd. Mule Street, United Kingdom, http://www.erpt.org/992q/Bate-00.Htm.
• CHANIECKI Z., SANKOWSKI D., (2007), Monitoring and diagnosis of dynamics states using process tomography (in polish), Diagnostics of processes and systems, DPS 2007, EXIT, ISBN 978-83-60434-31-4, pp. 387-394, 456pp.
• CHANIECKI Z. (2006), Algorithms of data processing and analysis in electrical capacitance tomography for diagnosis of selected industrial processes. PhD thesis (in Polish). Technical University of Łódź, Łódź, pp. 1-258.
• CHANIECKI Z., DYAKOWSKI T., NIEDOSTATKIEWICZ M., SANKOWSKI D. (2006), Application of electrical capacitance tomography for bulk solids flow analysis in silos. Particle and Particle Systems Characterization, 23, 3-4,pp.306-312.
• CHANIECKI Z., NIEDOSTATKIEWICZ M., DYAKOWSKI T., PLĄSKOWSKI A., SANKOWSKI D., SMOLIK W., SZABATIN R., (2004), Badania dynamiki przepływu w silosach-informacja o wstępnych pracach nad wprowadzeniem pojemnościowej tomografii procesowej, (in polish) W: Byrski W., Mikrut Z. (red.), Automatyka, UWN-D, Kraków, 8 (3), pp. 381-390.
• CHASE G.G., (2002), Solids Notes 10 - Hopper Design, The University of Akron, The Department of Chemical Engineering, http://www.ecgf.uakron.edu/~chem/fclty/chase.
• DYAKOWSKI T., WANG S.J., XIE C.G., WILLIAMS R.A., BECK M.S., (1993), Real time capacitance imaging of bubble formation at the distributor of a fluidised bed, Chemical Engineering Journal, Vol.56, pp.95 -100.
• GRUDZIEŃ K., ROMANOWSKI A., AYKROYD R.G., WILLIAMS R.A., WEST R.M., MENG S., (2004), Application of the Bayesian Approach to Powder Flow Investigation, 3rd International Symposium on Process Tomography in Poland, Łódź, p. 72-76.
• GRUDZIEŃ K., (2007) The Segmentation Algorithms for Diagnosis Parameters Visualization of Multiphase Flows in Chosen Industrial Systems, PhD thesis, (in polish), Technical University of Łódź, pp. 1-199.
• JAWORSKI A.J., DYAKOWSKI T., (2002), Investigations of flow instabilities within the dense pneumatic conveying system, Powder Technology, 125, 2-3, pp. 279-291.
• JENIKE A.W., (1970), Storage and Flow of Solids, Engg. Exp. Station Bulletin, 123 (University of Utah).
• KORBICZ J., KOŚCIELNY J.M., KOWALCZUK Z., CHOLEWA W. (ed.), (2002), Diagnostyka procesów. Modele. Metody sztucznej inteligencji. Zastosowania, (in polish), WNT, 828 pp.
• LIONHEART B., (2001), Reconstruction Algorithms for Permittivity and Conductivity Imaging, 2nd World Congress on Industrial Tomography, Hanover 2001, pp. 4-11.
• NEUFFER D., ALVAREZ A., OWENS D.H., OSTROWSKI K.L., LUKE S.P., WILLIAMS R.A., (1999), Control of Pneumatic Conveying Using ECT, 1st World Congress on Industrial Process Tomography, pp. 71-76.
• NIEDOSTATKIEWICZ M., TEJCHMAN J., (2003), Experimental and theoretical studies on resonance dynamic effects during silo flow. Powder Handling & Processing, 15, 1, 36-42, 2003.
• OSTROWSKI K., LUKE S.P., BENNETT M.A., WILLIAMS R.A., (1999), Application of capacitance electrical tomography for on-line and off-line analysis of flow pattern in horizontal pipeline of pneumatic conveyor, Chemical Engineering Journal, 3524, pp. 1-8.
• PLĄSKOWSKI A., BECK M.S., THORN R., DYAKOWSKI T., (1995), Imaging Industrial Flows: Applications of Electrical Process Tomography, IOP Publishing, Bristol, p.232.
• ROMANOWSKI A., GRUDZIEŃ K., WILLIAMS R.A., (2006), Analysis and Interpretation of Hopper Flow Behaviour Using Electrical Capacitance Tomography, Particle & Particle Systems Characterization, Volume 23, Issue 3-4, p. 297-305
• SEVILLE JPK., TUZUN U., CLIFT R., (1997), Processing of Particulate Solids, Blackie Academic, London, p. 377.