A Modeling Framework to Investigate the Influence of Fouling on the Dynamic Characteristics of PID-Controlled Heat Exchangers and Their Networks

Marian Trafczyński , Mariusz Markowski , Piotr Kisielewski , Krzysztof Urbaniec , Jacek Wernik

Abstract

The present work is an extension of the authors’ previous research, where changes in the dynamic behavior of heat exchangers induced by fouling build-up were studied. In the present work, the authors used the previously elaborated and validated mathematical model of transient heat exchange with the influence of thermal resistance of fouling taken into account. The behavior of specific Heat Exchanger Networks (HENs) coupled with a Crude Distillation Unit together with their control loops is simulated using Simulink/MATLAB and the influence of fouling build-up on specific indices of quality of operation is investigated. According to the presented results, the higher the number of heat exchangers in the PID control loop and the greater the number of heat exchangers interacting in the network, the smaller the influence of fouling on the control quality indices, and in the extreme case, this influence may be negligible. This might be caused by the compensation of the negative effects of fouling build-up when the heat exchangers are interacting in the HEN. Nevertheless, potential adverse effects of fouling on HEN operation can be prevented by periodic adjustments of the optimal values of PID gains.
Author Marian Trafczyński (FCEMP / IMEn)
Marian Trafczyński,,
- Institute of Mechanical Engineering
, Mariusz Markowski (FCEMP / IMEn)
Mariusz Markowski,,
- Institute of Mechanical Engineering
, Piotr Kisielewski
Piotr Kisielewski,,
-
, Krzysztof Urbaniec (FCEMP / IMEn)
Krzysztof Urbaniec,,
- Institute of Mechanical Engineering
, Jacek Wernik (FCEMP / IMEn)
Jacek Wernik,,
- Institute of Mechanical Engineering
Journal seriesApplied Sciences-Basel, ISSN 2076-3417, (A 25 pkt)
Issue year2019
Vol9
No5
ASJC Classification1507 Fluid Flow and Transfer Processes; 1706 Computer Science Applications; 1508 Process Chemistry and Technology; 2200 General Engineering; 3105 Instrumentation; 2500 General Materials Science
DOIDOI:10.3390/app9050824
URL http://www.mdpi.com/2076-3417/9/5/824
Score (nominal)25
ScoreMinisterial score = 25.0, 16-04-2019, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 16-04-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.801; WoS Impact Factor: 2017 = 1.689 (2) - 2017=1.855 (5)
Citation count*
Cite
Share Share

Get link to the record


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back