Abstract
In this paper, by taking the water-water balanced counterflow heat exchanger as an example, the entransy dissipation theory is applied to optimizing the design of heat exchangers. Under certain conditions, the optimal duct aspect ratio is determined analytically. When the heat transfer area or the duct volume is fixed, analytical expressions of the optimal mass velocity and the minimal entransy dissipation rate are obtained. These results show that to reduce the irreversible dissipation in heat exchangers, the heat exchange area should be enlarged as much as possible, while the mass velocity should be reduced as low as possible.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Selbas R, Kizilkan O, Reppich M. A new design approach for shell-and-tube heat exchangers using genetic algorithms from economic point of view. Chem Eng Process, 2006, 45: 268–275
Wildi-Tremblay P, Gosselin L. Minimizing shell-and-tube heat exchanger cost with genetic algorithms and considering maintenance. Int J Energ Res, 2007, 31: 867–885
Allen B, Gosselin L. Optimal geometry and flow arrangement for minimizing the cost of shell-and-tube condensers. Int J Energ Res, 2008, 32: 958–969
Babu B V, Munawar S A. Differential evolution strategies for optimal design of shell-and-tube heat exchanger. Chem Eng Sci, 2007, 62: 3720–3739
Caputo A C, Pelagagge P M, Salini P. Heat exchanger design based on economic optimisation. Appl Therm Eng, 2008, 28: 1151–1159
Yilmaz M, Sara O N, Karsli S. Performance evaluation criteria for heat exchangers based on second law analysis. Exergy Int J, 2001, 1: 278–294
Bejan A. Entropy generation minimization: The new thermodynamics of finite-size devices and finite-time processes. J Appl Phys, 1996, 79:1191–1218
Bejan A. Entropy Generation Minimization. New York: CRC Press, 1995
Guo J F, Cheng L, Xu M T. Optimization design of shell-and-tube heat exchanger by entropy generation minimization and genetic algorithm. Appl Therm Eng, 2009, 29: 2954–2960
Guo J F, Cheng L, Xu M T. The entropy generation minimization based on the revised entropy generation number. Int J Exergy, 2010, 7: 607–629
Guo J F, Xu M T, Cheng L. The application of field synergy number in shell-and-tube heat exchanger optimization design. Appl Energ, 2009, 86: 2079–2087
Guo J F, Cheng L, Xu M T. Entransy dissipation number and its application to heat exchanger performance evaluation. Chinese Sci Bull, 2009, 54: 2708–2713
Guo Z Y, Zhu H Y, Liang X G. Entransy-A physical quantity describing heat transfer ability. Int J Heat Mass Transfer, 2007, 50: 2545–2556
Guo Z Y, Liu X B, Tao W Q, et al. Effectiveness-thermal resistance method for heat exchanger design and analysis. Int J Heat Mass Transfer, 2010, 53: 2877–2884
Chen L G, Wei S H, Sun F R. Constructal entransy dissipation minimization for ‘volume-point’ heat conduction. J Phys D: Appl Phys, 2008, 41: 195506
Xu M T, Chen L, Guo J F. An application of entransy dissipation theory to heat exchanger design (in Chinese). J Eng Thermophys, 2009, 30: 2090–2092
Bejan A. Entropy Generation Through Heat and Fluid Flow. New York: John Wiley & Sons, 1982
Wang S P, Chen Q L, Zhang B J. An equation of entransy transfer and its application. Chinese Sci Bull, 2009, 54: 3572–3578
Han G Z, Guo Z Y. Physical mechanism of heat conduction ability dissipation and its analytical expression (in Chinese). Proc CSEE, 2007, 27: 98–102
Guo J F, Li M X, Xu M T, et al. The application of entransy dissipation theory in optimization design of heat exchanger. In: Proceedings of the 14th International Heat Transfer Conference, Washington, 2010
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is published with open access at Springerlink.com
Rights and permissions
This article is published under an open access license. Please check the 'Copyright Information' section either on this page or in the PDF for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team.
About this article
Cite this article
Li, X., Guo, J., Xu, M. et al. Entransy dissipation minimization for optimization of heat exchanger design. Chin. Sci. Bull. 56, 2174–2178 (2011). https://doi.org/10.1007/s11434-011-4489-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11434-011-4489-9