THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

External Links

Ahmed A. Kohil

,

Hassan A. Farag

,

Mona E. Ossman

MATHEMATICAL MODELING OF A MULTI-STREAM BRAZED ALUMINUM PLATE FIN HEAT EXCHANGER

ABSTRACT
The need for small size and lightweight heat exchangers in many applications has resulted in the development of many heat transfer surfaces. This type of heat exchanger is much more compact than can be practically realized with circular tubes. In this work a steady-state mathematical model that representing one of the plate fin heat exchangers enclosed in cold box of an ethylene plant has been developed. This model could evaluate the performance of the heat exchanger by predicting the outlet temperatures of the hot and cold streams when the inlet conditions are known. The model has been validated by comparing the results with actual operating values and the results showed good agreement with the actual data. Sensitivity analysis was applied on the model to illustrate the main parameters that have the greatest influence on the model calculated results. The sensitivity analysis showed that the hot stream outlet temperature is more sensitive to cold streams inlet temperatures and less sensitive to hot stream inlet temperature and thermal resistance (fouling), while the cold stream outlet temperature is more sensitive to cold streams inlet flow rate and less sensitive to fouling.
KEYWORDS
fouling, heat exchanger, modeling, simulation
PAPER SUBMITTED: 2008-04-08
PAPER REVISED: 2009-02-28
PAPER ACCEPTED: 2009-06-13
DOI REFERENCE: https://doi.org/10.2298/TSCI1001103K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE Issue 1, PAGES [103 - 114]
REFERENCES
  1. Webb, R. L. Principles of Enhanced Heat Transfer, John Wiley & Sons Inc., New York, USA, 1994
  2. ***, The Standards of the Brazed Aluminum Plate-Fin Heat Exchanger, Brazed Aluminum Plate-Fin Heat Exchanger Manufacturers Association, UK, ALPEMA, 1994
  3. Kays, W. M., London, A. L., Compact Heat Exchangers, 3rd ed., McGraw-Hill, New York, USA, 1984
  4. Haseler, L. E., Performance Calculation Method for Multi-Stream Plate-Fin Heat Exchangers,.in: Heat Exchangers, Theory and Practice (Eds. J. Taborek, G. F. Hewitt, N. Afgan), Hemisphere Publishing Corp., New work, USA, 1983
  5. Fan, Y. N., How to Design Plate Fin Heat Exchangers, Hydrocarbon Process, 45 (1966), 11, pp. 211-217
  6. Sorlie, T., Three Fluid Heat Exchanger Design Theory, Counter and Parallel Flow, Technical Report 54, Department of Mechanical Engineering, Stanford University Stanford, Col., USA, 1962
  7. Aulds, D. D., Barron, R. F., Three-Fluid Heat Exchanger Effectiveness, Int. J. Heat Mass Transfer, 10 (1967), pp.1457-1462
  8. Ghosh, I., Sarangi, S. K., Das, P. K., An Alternate Algorithm for the Analysis of Multi-Stream Plate Fin Heat Exchangers, International Journal of Heat and Mass transfer, 49 (2006), pp. 2889-2902
  9. Georgiadis, M. C., Macchietto, S., Dynamic Modeling and Simulation of Plate Heat Exchangers under Milk Fouling, Chem. Eng. Sci., 55 (2000), 9, pp. 1605-1619
  10. Reibero C.P., Cano Andrade M.H. A Heat Transfer Model for the Steady-State Simulation of climbing-Falling-Film Plate Evaporators, Journal of Food Engineering, 53 (2002), 1, pp. 59-66
  11. Gut Jorge, A.W., Pinto Jose, M., Modeling of Plate Heat Exchangers with Generalized Configurations, International Journal of Heat and Mass Transfer, 46 (2003), 14, pp. 2571-2585
  12. Tovazhyansky, L. L., et al., The Simulation of Multi-Component Mixtures Condensation in Plate Condensers, Heat Transfer Engineering, 25 (2004), 5, pp. 16-22
  13. Polasek, J. C., Donnelly, S. T., Bullin, J. A., Process Simulation and Optimization of Cryogenic Operations Using Multi-Stream Brazed Aluminum Exchangers, Proceedings, 68th Annual GPA Convention, San Antonio, Tex., USA, 1989, pp. 918-928
  14. Pingaud, H., Le Lann, J. M., Koehret, B., Steady-State and Dynamic Simulation of Plate Fin Heat Exchangers, Comput. Chem. Eng., 13 (1989), 4-5, pp. 577-585
  15. Luo, X., et al., Dynamic Behavior of One Dimensional Flow Multi Stream Heat Exchangers and Their Networks, Int. J. Heat Mass Transfer, 46 (2003), pp. 705-715
  16. Luo, X., Li, K., Li, M., Prediction of the Thermal Performance of Multi Stream Plate Fin Heat Exchangers, Int. J. Heat Exchangers, 2 (2001), pp 47-60
  17. Luo, X., Li, M., Roetzel, W., A General Solution for One Dimensional Multi Stream Heat Exchangers and Their Networks, Int. J. Heat Mass Transfer, 45 (2002), pp. 2695-2705
  18. Perry, R. H., Green, D. W., Maloney, J. O., Perry's Chemical Engineers Handbook, 6th ed., McGraw-Hill, New York, USA, 1984
  19. Taborek, J. Spalding, D. B, Heat Exchanger Design Handbook Vol. 1,Hemisphere Publishing Corp., New York, USA, 1983
PDF VERSION [DOWNLOAD]
Mathematical modeling of a multi-stream brazed aluminum plate fin heat exchanger

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence