A comprehensive design and optimization of an offset strip-fin compact heat exchanger for energy recovery systems

Muhammad Ahmad Jamil, Talha S. Goraya, Asad Ur Rehman, Haseeb Yaqoob, Muhammad Ikhlaq, Muhammad Wakil Shahzad*, Syed M. Zubair

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Energy recovery in conventional thermal systems like power plants, refrigeration systems, and air conditioning systems has enhanced their thermodynamic and economic performance. In this regard, compact heat exchangers are the most employed for gas to gas energy recovery because of their better thermal performance. This paper presents an economic optimization of a crossflow plate-fin heat exchanger with offset strip fins. A detailed software-based numerical code for thermal, hydraulic, economic, and exergy analysis is developed for three fin geometries. Genetic Algorithm, parametric, and normalized sensitivity analyses are used to discover the most influential parameters to optimize the total cost. The parametric study showed that with the increase of mass flow rates and plate spacing, outlet stream cost and operating cost increased due to the rise in pressure drops. Finally, the optimization reduced the operational cost by ∼78.5%, stream cost by ∼64.5%, and total cost by ∼76.8%.

Original languageEnglish
Article number100191
Number of pages13
JournalEnergy Conversion and Management: X
Volume14
Early online date28 Jan 2022
DOIs
Publication statusPublished - 1 May 2022

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