Measurement of particle concentration in powder coating process using capacitance computed tomography and wavelet analysis

Powder Technology

Volumn 193, Issue 1, 2009, Pages 93-100

  Takei, Masahiro ^a   Zhao, Tong ^a   Yamane, Kenji ^b  

^a NIHON UNIVERSITY   (Japan)

^b TAIHO PHARMACEUTICAL CO LTD   (Japan)

Author keywords

3D wavelets transform; Capacitance computed tomography; Coating process

Indexed keywords

3D WAVELETS TRANSFORM; COATING PROCESS; COATING TIME; CT IMAGES; DISCRETE WAVELETS; DRAFT TUBES; DRUG PRODUCTIONS; FLUIDIZED BED; MEASUREMENT OF PARTICLES; PARTICLE CONCENTRATION DISTRIBUTIONS; PARTICLE DISTRIBUTIONS; SPECIFIC FREQUENCIES; TIME AND SPACES; TWO-DIMENSIONAL SPACES;

CAPACITANCE; COATING TECHNIQUES; COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC RADIOGRAPHY; FEATURE EXTRACTION; FLUID DYNAMICS; FLUIDIZATION; FLUIDIZED BED PROCESS; FLUIDIZED BEDS; IMAGE PROCESSING; POWDER COATINGS;

THREE DIMENSIONAL;

ARTICLE; CAPACITANCE COMPUTED TOMOGRAPHY; COMPUTER ASSISTED TOMOGRAPHY; DRUG COATING; FLUIDIZED BED; IMAGE ANALYSIS; IMAGE RECONSTRUCTION; MEASUREMENT; POWDER; THREE DIMENSIONAL IMAGING; TIME;

EID: 64049084616     PISSN: 00325910     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.powtec.2009.02.014     Document Type: Article

References (23)

1. Sudsakorn K., and Turton R. Nonuniformity of particle coating on a size distribution of particles in a fluidized bed coater. Powder Technology 110 (2000) 37-43
2. Turton R., Bhatia A., Hakim H., Subramanian G., and Norman L. Research in particle coating and agglomeration at West Virginia University. Powder Technology 117 (2001) 139-148
3. Kleinbach E., and Riede Th. Coating of solids. Chemical Engineering and Processing 34 (1995) 329-337
4. Mann U., Crosby E.J., and Robinovitch M. Number of cycle distribution in circulating systems. Chemical Engineering Science 29 (1974) 761-765
5. Cheng X.X., and Turton R. The prediction of variability occurring in fluidized bed coating equipment. II: The role of nonuniform particle coverage as particle pass through the spray zone. Pharmaceutical Development and Technology 5 (2000) 323-332
6. Shelukar S., Ho J., Zega J., Roland E., Yeh N., Quiram D., Nole A., Katdare A., and Reynolds S. Identification and characterization of factors controlling tablet coating uniformity in a Wurster coating process. Powder Technology 110 (2000) 29-36
7. He Y.L., Lim C.J., Grace J.R., Zhu J.X., and Qin S.Z. Measurements of voidage profiles in spouted beds. Canadian Journal of Chemical Engineering 72 (1994) 229-234a
8. Saadevandi B.A., and Turton R. The application of computer-based imaging to the measurements of particle and voidage profiles in a fluidized bed. Powder Technology 98 (1998) 183-189
9. Huang S.M., Plaskowski A.B., Xie C.G., and Beck M.S. Tomographic imaging of two-component flow using capacitance sensors. Journal of Physics. E, Scientific Instruments 22 (1989) 173-177
10. Isaksen O. A review of reconstruction techniques for capacitance tomography. Measurement Science & Technology 7 (1996) 325-337
11. Halow J.S., and Nicoletti P. Observations of fluidized bed coalescence using capacitance imaging. Powder Technology 69 (1992) 255-277
12. Zhao T., Takei M., Masaki K., Ogiso R., Nakao K., and Uchiura A. Sensor design and image accuracy for application of capacitance CT to the petroleum refinery process. Flow Measurement and Instrumentation 18 (2007) 268-276
13. Wang S.J., Dyakowski T., Xie C.G., Williams R.A., and Beck M.S. Real time capacitance imaging of bubble formation at the distributor of a fluidized bed. Chemical Engineering Journal 56 3 (1995) 95-100
14. Dyakowski T., Luke S.P., Ostrowski K.L., and Williams R.A. On-line monitoring of dense phase flow using real time dielectric imaging. Powder Technology 104 (1999) 287-295
15. Warsito W., Fan L.-S., and Marashdeh Q. Electrical Capacitance Volume Tomography. IEEE Sensors Jounral 7 (4) (2007) 525-535
16. Hernandez E., and Weiss G. First Course on Wavelets (1996), CRC Press, FL, USA
17. Takei M., Ochi M., and Saito Y. Image extraction of particle concentration at the plug front using 3d wavelets and comparison with LDV. Powder Technology 142 (2004) 70-78
18. Takei M., and Saito Y. Application of the generalized vector sampled pattern matching method to reconstruction of electrical capacitance CT images. Measurement Science and Technology 15 (2004) 1-11
19. Wang L., and Maxey M.R. Settling velocity and concentration distribution of heavy particles in homogeneous isotropic. The Journal of Fluid Mechanics 256 (1993) 27-38
20. Fessler J.R., Kulick J.D., and Eaton J.K. Preferential concentration of heavy particles in a turbulent channel flow. Physics of Fluids 6 (1994) 3742-3749
21. Zhang M.H., Chu K.W., Wei F., and Yu A.B. A CFD-DEM study of the cluster behavior in riser and downer reactors. Powder Technology 184 (2008) 151-165
22. Zhonghua W., and Mujumdar A.S. CFD modeling of the gas-particle flow behavior in spouted beds. Powder Technology 183 (2008) 260-272
23. Horio M., and Kuroki H. Three-dimensional flow visualization of dilutely dispersed solids in bubbling and circulating fluidized beds. Chemical Engineering Science 49 (1994) 2413-2421