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Received March 5, 2001
Accepted May 3, 2001
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Continuous Measurement of Solids Flow in a Circulating Fluidized Bed
Department of Chemical Engineering and Energy & Environment Research Center, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
kimsd@kaist.ac.kr
Korean Journal of Chemical Engineering, July 2001, 18(4), 555-560(6), 10.1007/BF02698305
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Abstract
A modified impact probe for continuous measurement of solids circulation rate in a circulating fluidized bed has been developed based on a principle similar to a momentum probe. The response curves of solid flow from the probe have been characterized and calibrated in a test column (0.05 m-I.D.×0.80 m-high). The probe was validated in situ in the downcomer of a circulating fluidized bed (0.10 m-I.D.×4.80 m-high). The solid circulation rates obtained by the modified impact probe well agree with the measured solids circulation rate by the descent time method.
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Harris BJ, Davies CE, Davidson JF, Chem. Eng. Sci., 52(24), 4637 (1997)
Kim SW, Namkung W, Kim SD, Korean J. Chem. Eng., 16(1), 82 (1999)
Louge M, "Circulating Fluidized Beds," Grace, J.R., Avidan, A.A. and Knowlton, T.M., eds., Blackie Academic and Professional, UK, 336 (1997)
Namkung W, Kim SD, Korean J. Chem. Eng., 16(4), 456 (1999)
Patience GS, Chaouki J, "Solids Circulation Rate Determined by Pressure Drop Measurement," CFB Technology III, Basu, P., Horio, M. and Hasatani, M., eds., Pergamon Press, Oxford, 627 (1991)
Rhodes MJ, Sollaart M, Wang XS, Powder Technol., 99(2), 194 (1998)
Yang W, Ettehadieh E, Haldipur GB, AIChE J., 32, 1994 (1986)
Zhang WN, Johnsson F, Leckner B, Chem. Eng. Sci., 52(4), 497 (1997)
