Journal of Applied Science and Engineering

Published by Tamkang University Press

1.30

Impact Factor

1.60

CiteScore

Ho-Ming Yeh This email address is being protected from spambots. You need JavaScript enabled to view it.1 and Chii-Dong Ho1

1Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.


 

Received: November 5, 2010
Accepted: August 1, 2011
Publication Date: March 1, 2012

Download Citation: ||https://doi.org/10.6180/jase.2012.15.1.07  


ABSTRACT


Heat transfer in parallel-flow rectangular recuperators with internal recycle has been investigated. In contrast to a single-pass device of same size without recycle, considerable improvement in performance is achievable if one of the flow channels, either heated-fluid phase or cooled-fluid phase, is divided into two subchannels of same width with one performed as the cocurrent-flow operating subchannel and the other as the countercurrent-flow reflux subchannel which provides the increase of fluid velocity, resulting in reduction of heat-transfer resistance. The improvement in performance by recycling operation increases as flow rate and reflux ratio increase with negligible amount of hydraulic-dissipated energy.


Keywords: Heat Transfer, Rectangular Recuperators, Internal Reflux, Parallel Flow


REFERENCES


  1. [1] Jakob, M., Heat Transfer, Wiley, New York, Vol. 2, pp. 202227 (1957).
  2. [2] Marquart, R. and Blenke, H., “Circulation of Moderately to Highly Viscous Newtonian and NonNewtonian Liquids in Propeller-Pumped Circulating Loop Reactors,” Int. Chem. Eng., Vol. 20, pp. 368378 (1980).
  3. [3] Marquart, R., “Circulation of Highly-Viscosity Newtonian and Non-Newtonian Liquids in Jet Loop Reactors,” Int. Chem. Eng., Vol. 21, pp. 399407 (1981).
  4. [4] Dussap, G. and Gros, J. B., “Energy Consumption and Interfacial Mass Transfer Area in an Air-Lift Fermentor,” Chem. Eng. J., Vol. 25, pp. 151162 (1982).
  5. [5] Siegel, M. H., Merchuk, J. C. and Schugerl, K., “AirLift Reactor Analysis: Interrelationships between Riser, Downcomer, and Gas-Liquid Separator Behavior, Including Gas Recirculation Effects,” AIChE J., Vol. 32, pp. 15851595 (1986).
  6. [6] Yeh, H. M., Tsai, S. W. and Chiang, C. L., “Recycle Effects on Heat and Mass Transfer through a ParallelPlate Channel,” AIChE J., Vol. 33, pp. 17431746 (1987).
  7. [7] Jones, A. G., “Liquid Circulation in a Drift-Tube Bubble Column,” Chem. Eng. Sci., Vol. 40, pp. 449462 (1985).
  8. [8] Miyahara, T., Hamahuchi, M., Sukeda, Y. and Takahashi, T., “Size of Bubbles and Liquid Circulation in a Bubble Column with a Draught Tube and Sieve Plate,” Can. J. Chem. Eng., Vol. 64, pp. 718725 (1986).
  9. [9] Singh, S. N., “The Determination of Eigen-Functions of a Certain Sturm-Liouville Equation and Its Application to Problems of Heat-Transfer,” Appl. Sci. Res., Section A Vol. 32, pp. 237250 (1958).
  10. [10] Brown, G. M., “Heat or Mass Transfer in a Fluid in Laminar Flow in a Circular or Flat Conduit,” AIChE J., Vol. 6, pp. 179183 (1960).
  11. [11] Nunge, R. J. and Gill, W. N., “An Analytical Study of Laminar Counterflow Double-Pipe Heat Exchangers,” AIChE J., Vol. 12, pp. 279289 (1966).
  12. [12] Tsai, S. W. and Yeh, H. M., “A Study of the Separation Efficiency in Horizontal Thermal Diffusion Columns with External Refluxes,” Can. J. Chem. Eng., Vol. 63, pp. 406411 (1985).
  13. [13] Yeh, H. M., Tsai, S. W. and Lin, C. S., “A Study of the Separation Efficiency in Thermal Diffusion Columns with a Vertical Permeable Barrier,” AIChE J., Vol. 32, pp. 971980 (1986).
  14. [14] Ebadian, M. A. and Zhang, H. Y., “An Exact Solution of Extended Graetz Problem with Axial Heat Conduction,” Int. J. Heat Mass Transfer, Vol. 32, pp. 1709 1717 (1989).
  15. [15] Ho, C. D., Yeh, H. M. and Sheu, W. S., “An Analytical Study of Heat and Mass Transfer through a ParallelPlate Channel with Recycle,” Int. J. Heat Mass Transfer, Vol. 41, pp. 25892599 (1998).
  16. [16] Yeh, H. M., Ho, C. D. and Sheu, W. S., “Double-Pass Heat or Mass Transfer through a Parallel-Plate Channel with Recycle,” Int. J. Heat Mass Transfer, Vol. 43, pp. 487491 (2000).
  17. [17] Bird, R. B., Stewart, W. E. and Lightfoot, E. N., Transport Phenomena, New York, Wiley & Son, 2nd ed., p. 435 (2002).


    



 

1.6
2022CiteScore
 
 
60th percentile
Powered by  Scopus

SCImago Journal & Country Rank

Enter your name and email below to receive latest published articles in Journal of Applied Science and Engineering.