Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool

The Crude Preheat Train (CPT) is a set of large heat exchangers which recover the waste heat from product streams back to preheat the crude oil. The overall heat transfer coefficient in these heat exchangers may be significantly reduced due to fouling. One of the major impacts of fouling in CPT oper...

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Main Authors: H., Zabiri, V. R. , Radhakrishnan, M. , Ramasamy, C. S., Wah, V., Do Thanh, N. M., Ramli
Format: Conference or Workshop Item
Published: 2006
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Online Access:http://eprints.utp.edu.my/3762/1/Zabiri_et_al_full_paper_%28final5%29.pdf
http://eprints.utp.edu.my/3762/
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spelling my.utp.eprints.37622017-01-19T08:27:23Z Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool H., Zabiri V. R. , Radhakrishnan M. , Ramasamy C. S., Wah V., Do Thanh N. M., Ramli TP Chemical technology The Crude Preheat Train (CPT) is a set of large heat exchangers which recover the waste heat from product streams back to preheat the crude oil. The overall heat transfer coefficient in these heat exchangers may be significantly reduced due to fouling. One of the major impacts of fouling in CPT operation is the reduced heat transfer efficiency. The objective of this paper is to develop a predictive model using statistical methods which can a priori predict the rate of the fouling and the decrease in heat transfer efficiency in a heat exchanger in a crude preheat train. This predictive model will then be integrated into a preventive maintenance diagnostic tool to plan the cleaning of the heat exchanger to remove the fouling and bring back the heat exchanger efficiency to their peak values. The fouling model was developed using historical plant operating data and is based on Neural Network. Results show that the predictive model is able to predict the shell and tube outlet temperatures with excellent accuracy, where the Root Mean Square Error (RMSE) obtained is less than 1%, correlation coefficient R2 of approximately 0.98 and Correct Directional Change (CDC) values of more than 90%. A preliminary case study shows promising indication that the predictive model may be integrated into a preventive maintenance scheduling for the heat exchanger cleaning. 2006 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/3762/1/Zabiri_et_al_full_paper_%28final5%29.pdf H., Zabiri and V. R. , Radhakrishnan and M. , Ramasamy and C. S., Wah and V., Do Thanh and N. M., Ramli (2006) Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool. In: CHEMECA 2006, 17-20 September, 2009, Auckland, New Zealand. http://eprints.utp.edu.my/3762/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
H., Zabiri
V. R. , Radhakrishnan
M. , Ramasamy
C. S., Wah
V., Do Thanh
N. M., Ramli
Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool
description The Crude Preheat Train (CPT) is a set of large heat exchangers which recover the waste heat from product streams back to preheat the crude oil. The overall heat transfer coefficient in these heat exchangers may be significantly reduced due to fouling. One of the major impacts of fouling in CPT operation is the reduced heat transfer efficiency. The objective of this paper is to develop a predictive model using statistical methods which can a priori predict the rate of the fouling and the decrease in heat transfer efficiency in a heat exchanger in a crude preheat train. This predictive model will then be integrated into a preventive maintenance diagnostic tool to plan the cleaning of the heat exchanger to remove the fouling and bring back the heat exchanger efficiency to their peak values. The fouling model was developed using historical plant operating data and is based on Neural Network. Results show that the predictive model is able to predict the shell and tube outlet temperatures with excellent accuracy, where the Root Mean Square Error (RMSE) obtained is less than 1%, correlation coefficient R2 of approximately 0.98 and Correct Directional Change (CDC) values of more than 90%. A preliminary case study shows promising indication that the predictive model may be integrated into a preventive maintenance scheduling for the heat exchanger cleaning.
format Conference or Workshop Item
author H., Zabiri
V. R. , Radhakrishnan
M. , Ramasamy
C. S., Wah
V., Do Thanh
N. M., Ramli
author_facet H., Zabiri
V. R. , Radhakrishnan
M. , Ramasamy
C. S., Wah
V., Do Thanh
N. M., Ramli
author_sort H., Zabiri
title Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool
title_short Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool
title_full Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool
title_fullStr Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool
title_full_unstemmed Development of Heat Exchanger Fouling Model and Preventive Maintenance Diagnostic Tool
title_sort development of heat exchanger fouling model and preventive maintenance diagnostic tool
publishDate 2006
url http://eprints.utp.edu.my/3762/1/Zabiri_et_al_full_paper_%28final5%29.pdf
http://eprints.utp.edu.my/3762/
_version_ 1738655292000829440
score 13.211869