Imperial College London
Portrait Picture

Prof. Sandro Macchietto

Faculty of Engineering, Department of Chemical Engineering

Professor of Process Systems Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6608s.macchietto Website

 
 
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Assistant

 

Mrs Sarah Payne +44 (0)20 7594 5567

 
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Location

 

ACEX 507aACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Santamaria:2019:10.1016/j.compchemeng.2019.04.012,
author = {Santamaria, FL and Macchietto, S},
doi = {10.1016/j.compchemeng.2019.04.012},
journal = {Computers and Chemical Engineering},
pages = {128--146},
title = {Integration of optimal cleaning scheduling and control of heat exchanger networks under fouling: MPCC solution},
url = {http://dx.doi.org/10.1016/j.compchemeng.2019.04.012},
volume = {126},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Fouling is a major source of energy inefficiencies that decreases the performance of process units. Fouling mitigation alternatives are required to ensure a sustainable, profitable, and safe operation. In heat exchanger networks, two mitigation alternatives are: flow distribution control, and periodical cleanings. This paper addresses the optimal control and optimal cleaning scheduling, individually and simultaneously, for heat exchangers in refining operations. The problem is formulated as a MINLP, which uses an accurate model of the process, logic disjunctions, and a continuous time representation. To solve it efficiently, it is reformulated as a mathematical program with complementarity constraints (MPCC). The modelling and solution strategies are demonstrated in several case studies, from small to moderately large networks for realistic applications. The formulation is versatile, and large network problems are solved in a reasonable computational time. The integration of optimal scheduling and control decreases the operational cost substantially relative to independent mitigation alternatives.
AU  - Santamaria,FL
AU  - Macchietto,S
DO  - 10.1016/j.compchemeng.2019.04.012
EP  - 146
PY  - 2019///
SN  - 0098-1354
SP  - 128
TI  - Integration of optimal cleaning scheduling and control of heat exchanger networks under fouling: MPCC solution
T2  - Computers and Chemical Engineering
UR  - http://dx.doi.org/10.1016/j.compchemeng.2019.04.012
UR  - https://www.sciencedirect.com/science/article/pii/S0098135418313000?via%3Dihub
UR  - http://hdl.handle.net/10044/1/77751
VL  - 126
ER  -
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