Control structure design for optimal operation of heat exchanger networks

AIChE Journal ◽  
2007 ◽  
Vol 54 (1) ◽  
pp. 150-162 ◽  
Author(s):  
Veerayut Lersbamrungsuk ◽  
Thongchai Srinophakun ◽  
Sridharakumar Narasimhan ◽  
Sigurd Skogestad
Keyword(s):  
Heat Exchanger ◽  
Control Structure ◽  
Optimal Operation ◽  
Structure Design ◽  
Heat Exchanger Networks

scholarly journals Optimal operation of heat exchanger networks through energy flow redistribution

2021 ◽  
Author(s):  
Karthika Mohanan ◽  
Sujit Jogwar
Keyword(s):  
Heat Exchanger ◽  
Heat Exchangers ◽  
Energy Flow ◽  
Optimization Problem ◽  
Optimal Operation ◽  
Propagation Path ◽  
Target Temperature ◽  
Feedback Control System ◽  
Flow And Heat Transfer ◽  
Heat Exchanger Networks

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.

Optimal operation of heat exchanger networks

1999 ◽  
Vol 23 (4-5) ◽  
pp. 509-522 ◽  
Author(s):  
B. Glemmestad ◽  
S. Skogestad ◽  
T. Gundersen
Keyword(s):  
Heat Exchanger ◽  
Optimal Operation ◽  
Heat Exchanger Networks
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