Synthesis of multistream heat exchangers by thermally linked two-stream modules |
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| Authors: | Indranil Ghosh Sunil Kumar Sarangi Prasanta Kumar Das |
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| Affiliation: | 1. Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur 721 302, India;2. Mechanical Engineering Department, Indian Institute of Technology, Kharagpur 721 302, India;1. Departamento de Ingeniería de Sistemas y Automática, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain;2. Departamento de Ingeniería, Universidad Loyola Andalucía, Energía Solar 1. Edificio E, Campus Palmas Altas, 41014 Sevilla, Spain;1. Solar Thermal Energy Research Group, Stellenbosch University, Private bag X1, Matieland 7602, South Africa;2. Department of Mechanical and Mechatronic Engineering, Stellenbosch University, Private bag X1, Matieland 7602, South Africa |
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| Abstract: | ![]()
A simple yet very efficient algorithm has been devised for the analysis of multistream heat exchangers. In this approach, an n-stream heat exchanger is considered as a stack of (n ? 1) two-stream exchangers separated by diabatic partitions. Starting from the analysis of the basic two-stream units the entire heat exchanger can be designed non-iteratively. The validity of the algorithm has been established through a number of examples, comprising of two-steam exchanger with external heat leakage, three-stream and four-stream exchangers. Excellent agreements with experimental results and published simulation have been observed. Finally the most crucial assumption made in the present work has been assessed critically and its justification has been provided. |
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