Scheduling the cleaning actions for a fouled heat exchanger subject to ageing: MINLP formulation

Thomas A. Pogiatzis; D. Ian Wilson; Vassilios S. Vassiliadis

doi:10.1016/j.compchemeng.2011.12.012

Scheduling the cleaning actions for a fouled heat exchanger subject to ageing: MINLP formulation

Thomas A. Pogiatzis, D. Ian Wilson, Vassilios S. Vassiliadis

Department of Engineering

University of Cambridge

Research output: Contribution to journal › Article › peer-review

Abstract

This paper addresses the problem of scheduling the cleaning actions of a heat exchanger undergoing fouling and ageing. The existence of two discrete layers leads to the use of two cleaning methods which differ in their ability to remove the aged layer. A mixed integer nonlinear programming (MINLP) model is presented and solved for three case studies with different ageing rates. The optimal schedule consists of: (i) the timing of the cleanings and (ii) the cleaning mode in each instant.

Original language	English
Pages (from-to)	179-185
Number of pages	7
Journal	Computers and Chemical Engineering
Volume	39
DOIs	https://doi.org/10.1016/j.compchemeng.2011.12.012
Publication status	Published - 6 Apr 2012

Keywords

Ageing
Cleaning
Fouling
Heat exchangers
MINLP
Scheduling

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10.1016/j.compchemeng.2011.12.012

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abstract = "This paper addresses the problem of scheduling the cleaning actions of a heat exchanger undergoing fouling and ageing. The existence of two discrete layers leads to the use of two cleaning methods which differ in their ability to remove the aged layer. A mixed integer nonlinear programming (MINLP) model is presented and solved for three case studies with different ageing rates. The optimal schedule consists of: (i) the timing of the cleanings and (ii) the cleaning mode in each instant.",

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AB - This paper addresses the problem of scheduling the cleaning actions of a heat exchanger undergoing fouling and ageing. The existence of two discrete layers leads to the use of two cleaning methods which differ in their ability to remove the aged layer. A mixed integer nonlinear programming (MINLP) model is presented and solved for three case studies with different ageing rates. The optimal schedule consists of: (i) the timing of the cleanings and (ii) the cleaning mode in each instant.

KW - Ageing

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KW - Fouling

KW - Heat exchangers

KW - MINLP

KW - Scheduling

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ER -

Scheduling the cleaning actions for a fouled heat exchanger subject to ageing: MINLP formulation

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Keywords

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