Evaluation of heat transfer parameters in packed beds with cocurrent downflow of liquid and gas

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The results of an experimental investigation on heat transfer from a packed bed with cocurrent gas-liquid downflow to the wall are presented and analyzed in this contribution. The measurements cover the range of operating variables corresponding to the so-called trickle regime in beds presenting asp...

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Autor principal: Mariani, N.J
Otros Autores: Martínez, O.M, Barreto, G.F
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2001
Acceso en línea:Registro en Scopus
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024 7 |2 scopus  |a 2-s2.0-0035941245 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
030 |a CESCA 
100 1 |a Mariani, N.J. 
245 1 0 |a Evaluation of heat transfer parameters in packed beds with cocurrent downflow of liquid and gas 
260 |c 2001 
270 1 0 |m Barreto, G.F.; Departamento de Ingenieria Quimica, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina; email: barreto@quimica.unlp.edu.ar 
506 |2 openaire  |e Política editorial 
504 |a Chu, C.F., Ng, K.M., Effective thermal conductivity in trickle-bed reactors: Application of effective medium theory and random walk analysis (1985) Chemical Engineering Communications, 37, pp. 127-140 
504 |a Dixon, A.G., Diconstanzo, M.A., Soucy, B.A., Fluid-phase transport in packed beds of low tube-to particle diameter ratio (1984) International Journal of Heat and Mass Transfer, 27 (19), pp. 1701-1713 
504 |a Giese, M., Rottschäfer, K., Vortmeyer, D., Measured and modelled superficial flow profiles in packed beds with liquid flow (1998) A.I.Ch.E. Journal, 44, pp. 484-490 
504 |a Hashimoto, K., Muroyama, K., Nagata, S., Fujiyoshi, K., Effective radial thermal conductivity in cocurrent flow of gas and liquid through packed bed (1976) Kagaku Kogaku Ronbunshu, 2, pp. 53-59 
504 |a Krishna, R., Sie, S.T., Strategies for multiphase reactor selection (1994) Chemical Engineering Science, 49, pp. 4029-4065 
504 |a Lamine, A.S., Gerth, L., Le Gall, H., Wild, G., Heat transfer in packed bed reactor with cocurrent downflow of a gas and a liquid (1996) Chemical Engineering Science, 51, pp. 3813-3827 
504 |a Lemcoff, N.O., Pereira Duarte, S.I., Martinez, O.M., Heat transfer in fixed bed (1990) Reviews in Chemical Engineering, 6, pp. 229-292 
504 |a Mariani, N.J., (2000) Transferencia De Calor En Sistemas Multifásicos, , Tesis Doctoral, Universidad Nacional de La Plata, La Plata, Argentina 
504 |a Mariani, N.J., Mazza, G.D., Martinez, O.M., Barreto, G.F., The distribution of particles in cylindrical packed beds (1998) Trends in Heat. Mass and Momentum Transfer, 4, pp. 95-114 
504 |a Matsuura, A., Hitaka, Y., Akehata, T., Shirai, T., Effective radial thermal conductivity in packed beds with gas-liquid downflow (1979) Kagaku Kogaku Rombunshu, 5, pp. 269-274 
504 |a Matsuura, A., Hitaka, Y., Akehata, T., Shirai, T., Apparent wall heat transfer coefficient in packed beds with downward cocurrent gas-liquid flow (1979) Kagaku Kogaku Rombunshu, 5, pp. 263-268 
504 |a Muroyama, K., Hashimoto, K., Tomita, T., Heat transfer from the wall in gas-liquid cocurrent packed beds (1977) Kagaku Kogaku Ronbunshu, 3, pp. 612-616 
504 |a Specchia, V., Baldi, G., Heat transfer in trickle-bed reactors (1979) Chemical Engineering Communications, 3, pp. 483-499 
504 |a Stewart, W.E., Caracotsios, M., Sorensen, J.P., Parameter estimation from multiresponse data (1992) A.I.Ch.E. Journal, 38, pp. 641-650 
504 |a Wakao, N., Kaguei, S., (1982) Heat Transfer in Packed Beds, , (2nd ed.). New York: Gordon and Breach Science Publishers 
520 3 |a The results of an experimental investigation on heat transfer from a packed bed with cocurrent gas-liquid downflow to the wall are presented and analyzed in this contribution. The measurements cover the range of operating variables corresponding to the so-called trickle regime in beds presenting aspect ratios (tube to particle diameter ratio) from 4.67 to 34.26. Water and air were employed as model fluids. The heat transfer process was first analyzed by means of a two-dimensional pseudohomogeneous plug-flow model with two parameters, the effective radial thermal conductivity (ker) and the wall heat transfer coefficient (hw). ker is well correlated with liquid and gas Reynolds numbers and particle diameter, except for the lowest experimental aspect ratio (4.67). Instead, a meaningful correlation of hw stands only for aspect ratios larger than 15. These results are analyzed and the evidence points out to sustain the hypothesis that the model fails at low aspect ratios because an apparent contact resistance (1/hw) can no longer accommodate the effects of significant fluid by passing and finite size of the near-wall region. The experimental set of data were also used to develop a correlation for the overall heat transfer coefficient (ht), which can be employed satisfactorily to predict heat transfer rates in the whole range of variables here investigated. © 2001 Elsevier Science Ltd. All rights reserved.  |l eng 
536 |a Detalles de la financiación: Universidad Nacional de La Plata, UNLP, 11/I058 
536 |a Detalles de la financiación: PICT N# 00227, 06297 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, PIP96 N# 4791 
536 |a Detalles de la financiación: The authors wish to thank the financial support of the following argentine institutions: ANPCyT- SECyT (PICT N# 00227 and N# 06297), CONICET (PIP96 N# 4791) and UNLP (PID N# 11/I058). O. M. M. and G. F. B. are Research Members of the CONICET and N. J. M. is a fellow of the CONICET. 
593 |a Departamento De Ingeniería Química, Facultad De Ingeniería, Universidad Nacional De La Plata, La Plata, Argentina 
593 |a Pinmate, Departamento De Industrias, Ciudad Universitaria, Buenos Aires, Argentina 
593 |a Centro De Investigación Y Desarrollo En Procesos Catalíticos (CINDECA), CONICET, Universidad Nacional De La Plata, Calle 47 No. 257, CC 59, CP B1900AJK, La Plata, Argentina 
690 1 0 |a EFFECTIVE THERMAL CONDUCTIVITY 
690 1 0 |a HEAT TRANSFER 
690 1 0 |a RADIAL TEMPERATURE PROFILE 
690 1 0 |a THERMAL PARAMETERS 
690 1 0 |a TRICKLE-BED REACTORS 
690 1 0 |a WALL HEAT TRANSFER COEFFICIENT 
690 1 0 |a ASPECT RATIO 
690 1 0 |a CORRELATION METHODS 
690 1 0 |a HEAT TRANSFER COEFFICIENTS 
690 1 0 |a MATHEMATICAL MODELS 
690 1 0 |a PACKED BEDS 
690 1 0 |a REYNOLDS NUMBER 
690 1 0 |a THERMAL CONDUCTIVITY 
690 1 0 |a CONTACT RESISTANCE 
690 1 0 |a HEAT TRANSFER 
690 1 0 |a HEAT TRANSFER 
690 1 0 |a PACKED BED 
690 1 0 |a THERMAL CONDUCTIVITY 
690 1 0 |a TRICKLE BED REACTOR 
700 1 |a Martínez, O.M. 
700 1 |a Barreto, G.F. 
773 0 |d 2001  |g v. 56  |h pp. 5995-6001  |k n. 21-22  |p Chem. Eng. Sci.  |x 00092509  |w (AR-BaUEN)CENRE-291  |t Chemical Engineering Science 
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856 4 0 |u https://doi.org/10.1016/S0009-2509(01)00225-1  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_00092509_v56_n21-22_p5995_Mariani  |y Handle 
856 4 0 |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092509_v56_n21-22_p5995_Mariani  |y Registro en la Biblioteca Digital 
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