Abstract
In the process of the design of heat exchangers, it is difficult to establish the factors governing the optimal points of the design objective functions due to the contradictions and uncertainties of the design objectives. The variation of fluid properties is one of the main factors causing this type of uncertainty. Conventional design methods have not completely solved these problems. In the present work, based on the logarithmic mean temperature difference, a new heat exchanger design method (called the segmented design method) is proposed which takes into account the variation of fluid properties with respect to the temperature. In this method, the whole heat exchanger is first divided into several segments. Then by applying the principle of the conservation of energy and taking into account the initial conditions as well as the connecting conditions of the adjacent segments, the inlet and outlet temperatures of each segment are determined. Finally, the application of the logarithmic mean temperature difference method on each segment defines the heat transfer area.
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References
Skoglund T, Arzen K-E, Dejmek P. Dynamic object-oriented heat exchanger models for simulation of fluid property transitions. Int J Heat Mass Transfer, 2006, 49: 2291–2303
Cheng L, Luan T, Du W J, et al. Heat transfer enhancement by flow-induced vibration in heat exchangers. Int J Heat Mass Transfer, 2009, 52: 1053–1057
Guo J F, Xu M T, Cheng L. Principle of equipartition of entransy dissipation for heat exchanger design. Sci China Tech Sci, 2010, 53: 1309–1314
Guo J F, Xu M T, Cheng L. The entransy dissipation minimization principle under given heat duty and heat transfer area conditions. Chinese Sci Bull, 2010, 55: 3141–3146
Chato J C, Leverman R J, Shah J M. Analysis of parallel flow multistream heat exchangers. Int J Heat Mass Transfer, 1971, 14: 1691–1703
Paffenbarger M. General computer analysis of multistream plate fin heat exchanger. In: Shah R K, Krause A D, Etzger D M, eds. Compact Heat Exchanger-A Festschrift for London A L. New York: Hemisphere Publishing, 1990. 727–746
Roetzel W, Spang B. Design of heat exchangers. In: VDI, VDI-GVC. VDI Heat Atlas. Dusseldorf: VDI-Verlag, 1993
Sekulć D P, Shah R K. Thermal design theory of three-fluid heat exchanger. Adv Heat Exchanger, 1995, 26: 219–327
Shah R K, Sekulć D P. Nonuniform heat transfer coefficients in conventional heat exchanger design theory. ASME J Heat Transfer, 1998, 119: 520–525
Incropera F P, Dewitt D P. Fundamentals of Heat and Mass Transfer. New York: John Wiley & Sons, Inc., 1996
Shah R K, Sekulć D P. Fundamentals of Heat Exchangers Design (in Chinese). Cheng L, Trans. Beijing: China Machine Press, 2010
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Song, J., Xu, M. & Cheng, L. Theoretical analysis of a method for segmented heat exchanger design. Chin. Sci. Bull. 56, 2179–2184 (2011). https://doi.org/10.1007/s11434-011-4462-7
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DOI: https://doi.org/10.1007/s11434-011-4462-7