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Optimal operation of heat exchanger networks through energy flow redistribution
  • Karthika Mohanan,
  • Sujit Jogwar
Karthika Mohanan
Indian Institute of Technology Bombay

Corresponding Author:karthika.m@iitb.ac.in

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Sujit Jogwar
Indian Institute of Technology Bombay
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This paper presents a novel energy flow redistribution methodology to achieve optimal operation of heat exchanger networks (HENs). The proposed method aims to manipulate the propagation path of a disturbance through the network to reduce its impact on utility consumption. Specifically, an optimization problem is formulated to generate new duty targets for heat exchangers of the network when a disturbance is encountered. Subsequently, a feedback control system is designed to track these targets by manipulating bypasses around the process heat exchangers. The effectiveness of the proposed framework is illustrated with the help of three benchmark examples. The proposed approach can handle disturbances in inlet as well as target temperature, inlet flow and heat transfer coefficient of individual heat exchangers.
24 Dec 2021Submitted to AIChE Journal
26 Dec 2021Submission Checks Completed
26 Dec 2021Assigned to Editor
30 Dec 2021Reviewer(s) Assigned
24 Mar 2022Editorial Decision: Revise Minor
29 Mar 20221st Revision Received
30 Mar 2022Submission Checks Completed
30 Mar 2022Assigned to Editor
06 Apr 2022Editorial Decision: Accept