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A new graphical method for heat exchanger network design involving phase changes

Heat Exchanger Network Synthesis (HENS) plays a major role for effective energy integration in chemical process plants. In HENS, several hot and cold streams and utilities with specific inlet and desired outlet temperatures are involved. Stream Temperature versus Enthalpy Plot (STEP) is new graphica...

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Main Authors: Yeo, Y. S., Alwi, S. R. W., Ahmad, S., Manan, Z. A., Zamzuri, N. H.
Format: Article
Published: Italian Association of Chemical Engineering - AIDIC 2017
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/75897/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019474791&doi=10.3303%2fCET1756209&partnerID=40&md5=48b863267cad931eb8e7c2c22e25fdd3
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spelling my.utm.758972018-05-30T04:08:46Z http://eprints.utm.my/id/eprint/75897/ A new graphical method for heat exchanger network design involving phase changes Yeo, Y. S. Alwi, S. R. W. Ahmad, S. Manan, Z. A. Zamzuri, N. H. TP Chemical technology Heat Exchanger Network Synthesis (HENS) plays a major role for effective energy integration in chemical process plants. In HENS, several hot and cold streams and utilities with specific inlet and desired outlet temperatures are involved. Stream Temperature versus Enthalpy Plot (STEP) is new graphical tool which can complement Composite Curves (CCs) and Grid Diagram (GD) by representing individual, as opposed to composite streams on temperature versus enthalpy diagram, and by allowing designers to perform targeting and network design simultaneously. Previous researches do not consider the effect of phase changes in the hot and cold streams and assume constant specific heat capacity, Cp along process streams. The aim of this study is to propose a new graphical method for HENS targeting and network design involving phase changes. Using an illustrative example, STEP procedure is proposed for the determination of minimum utility targets with the minimum number of heat exchangers. Results of the analysis using the modified STEP is compared with those obtained using Composite Curves. It is found that the modified STEP provides more accurate and realistic results and allows the selection of different types of heat exchangers. Italian Association of Chemical Engineering - AIDIC 2017 Article PeerReviewed Yeo, Y. S. and Alwi, S. R. W. and Ahmad, S. and Manan, Z. A. and Zamzuri, N. H. (2017) A new graphical method for heat exchanger network design involving phase changes. Chemical Engineering Transactions, 56 . pp. 1249-1254. ISSN 2283-9216 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019474791&doi=10.3303%2fCET1756209&partnerID=40&md5=48b863267cad931eb8e7c2c22e25fdd3
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Yeo, Y. S.
Alwi, S. R. W.
Ahmad, S.
Manan, Z. A.
Zamzuri, N. H.
A new graphical method for heat exchanger network design involving phase changes
description Heat Exchanger Network Synthesis (HENS) plays a major role for effective energy integration in chemical process plants. In HENS, several hot and cold streams and utilities with specific inlet and desired outlet temperatures are involved. Stream Temperature versus Enthalpy Plot (STEP) is new graphical tool which can complement Composite Curves (CCs) and Grid Diagram (GD) by representing individual, as opposed to composite streams on temperature versus enthalpy diagram, and by allowing designers to perform targeting and network design simultaneously. Previous researches do not consider the effect of phase changes in the hot and cold streams and assume constant specific heat capacity, Cp along process streams. The aim of this study is to propose a new graphical method for HENS targeting and network design involving phase changes. Using an illustrative example, STEP procedure is proposed for the determination of minimum utility targets with the minimum number of heat exchangers. Results of the analysis using the modified STEP is compared with those obtained using Composite Curves. It is found that the modified STEP provides more accurate and realistic results and allows the selection of different types of heat exchangers.
format Article
author Yeo, Y. S.
Alwi, S. R. W.
Ahmad, S.
Manan, Z. A.
Zamzuri, N. H.
author_facet Yeo, Y. S.
Alwi, S. R. W.
Ahmad, S.
Manan, Z. A.
Zamzuri, N. H.
author_sort Yeo, Y. S.
title A new graphical method for heat exchanger network design involving phase changes
title_short A new graphical method for heat exchanger network design involving phase changes
title_full A new graphical method for heat exchanger network design involving phase changes
title_fullStr A new graphical method for heat exchanger network design involving phase changes
title_full_unstemmed A new graphical method for heat exchanger network design involving phase changes
title_sort new graphical method for heat exchanger network design involving phase changes
publisher Italian Association of Chemical Engineering - AIDIC
publishDate 2017
url http://eprints.utm.my/id/eprint/75897/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019474791&doi=10.3303%2fCET1756209&partnerID=40&md5=48b863267cad931eb8e7c2c22e25fdd3
_version_ 1643657190268993536
score 13.211869

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