A general solution for one-dimensional multistream heat exchangers and their networks |
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| Authors: | Xing Luo Meiling LiWilfried Roetzel |
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| Affiliation: | a Institute of Thermodynamics, University of the Federal Armed Forces Hamburg, D-22039 Hamburg, Germany
b Institute of Thermal Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | A mathematical model for predicting the steady-state thermal performance of one-dimensional (cocurrent and countercurrent) multistream heat exchangers and their networks is developed and is solved analytically for constant physical properties of streams. By introducing three matching matrices, the general solution can be applied to various types of one-dimensional multistream heat exchangers such as shell-and-tube heat exchangers, plate heat exchangers and plate-fin heat exchangers as well as their networks. The general solution is applied to the calculation and design of multistream heat exchangers. Examples are given to illustrate the procedures in detail. Based on this solution the superstructure model is developed for synthesis of heat exchanger networks. |
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| Keywords: | Heat exchangers Heat recovery Optimization |
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