Volume 4, Issue 1, January 2019, Page: 18-26
Effect of Supertargeting and Non Isothermal Stream Mixing in Heat Exchanger Network Design Using Modified Pinch Analysis
Azeez Oluwatosin Sarafa, Department of Chemical Engineering, Federal University of Technology, Minna, Nigeria
Ogbonnaya Blessing, Department of Chemical Engineering, Federal University of Technology, Minna, Nigeria
Ekechukwu Onyinye, Department of Chemical Engineering, Federal University of Technology, Minna, Nigeria
Akande Hassan, Department of Chemical Engineering, Kaduna Polytechnic, Kaduna, Nigeria
Received: Jan. 30, 2019;       Accepted: Mar. 21, 2019;       Published: May 11, 2019
DOI: 10.11648/j.ijees.20190401.13      View  17      Downloads  4
Abstract
This paper investigated the effect of minimum temperature difference as well as that of non-isothermal stream mixing in heat exchanger networks (HENs) using a modified pinch technique. Supertargeting was carried out to determine the appropriate minimum temperature difference value used to design the HENs. The networks were further optimized to remove the isothermal mixing assumption. In the four case studies used in this work, each shows how these two concepts affect the total annual cost (TAC) of HENs. These were presented in the network comparison tables where the cost of the networks using supertargeting is much lower than the cost of the ones without, and the non-isothermal mixing networks have lower costs than the ones with the isothermal mixing assumption even in the networks designed without supertargeting technique.
Keywords
Supertargeting, Optimization, Non-Isothermal Mixing, Pinch Analysis
To cite this article
Azeez Oluwatosin Sarafa, Ogbonnaya Blessing, Ekechukwu Onyinye, Akande Hassan, Effect of Supertargeting and Non Isothermal Stream Mixing in Heat Exchanger Network Design Using Modified Pinch Analysis, International Journal of Energy and Environmental Science. Vol. 4, No. 1, 2019, pp. 18-26. doi: 10.11648/j.ijees.20190401.13
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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