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An industrial case study application in synthesizing a feasible heat exchanger network

Heat exchanger network synthesis (HENS) is an important part in the overall chemical process. HENS links the process flowsheet with the utility system and generally involves a large fraction of both the overall plant capital cost, operating costs in terms of energy requirements, which is a key facto...

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Main Authors: Abu Bakar, Suraya Hanim, Abd. Hamid, Mohd. Kamaruddin, Wan Alwi, Sharifah Rafidah, Abd. Manan, Zainuddin
Format: Conference or Workshop Item
Published: UTM-FKT 2016
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/66976/
http://dx.doi.org/10.3303/CET1756130
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spelling my.utm.669762017-07-18T01:50:50Z http://eprints.utm.my/id/eprint/66976/ An industrial case study application in synthesizing a feasible heat exchanger network Abu Bakar, Suraya Hanim Abd. Hamid, Mohd. Kamaruddin Wan Alwi, Sharifah Rafidah Abd. Manan, Zainuddin TP Chemical technology Heat exchanger network synthesis (HENS) is an important part in the overall chemical process. HENS links the process flowsheet with the utility system and generally involves a large fraction of both the overall plant capital cost, operating costs in terms of energy requirements, which is a key factor for a profitable process. The aims of the synthesis consist of finding a network design that minimises the total annualised cost, i.e. the investment cost in units and the operating cost in terms of utility consumption. In HENS, the feasibility of the HEN design does not take into consideration. As a consequence, the HEN design may not be able to be implemented into industrial applications. It is essential to check the feasibility of a design before it is being implemented into the industry. The objective of this paper is to present the application of a new flexible and operable heat exchanger network (FNO HEN) methodology in synthesising a feasible heat exchanger network (F-HEN) using an industrial case study. The aim of this work is to verify the existing industrial HEN design in terms of the process design point of view as well as the process feasibility. The existing industrial HEN design is verified in terms of Tmin value that gives minimum external energy requirement (EER) and heat exchanger area (HEA) as well as simultaneously analyse the feasibility of the HEN design. Using the new developed FNO HEN methodology framework, HEN design target, which is the value of Tmin is determined in order to obtain the F-HEN design. From process design point of view, Tmin value determines the size of heat exchanger in the network as well as energy saving. A process simulator is used to check the process feasibility of the HEN designs. With the use of the F-HEN trade-off plot, which is a plot of EER and HEA at different value of Tmin. with additional of feasibility area, the optimal feasible HEN design which satisfies external energy requirement (operability), heat exchanger area (capital) and process feasibility has been successfully determined in an easy, systematic and efficient manner. UTM-FKT 2016-01-11 Conference or Workshop Item PeerReviewed Abu Bakar, Suraya Hanim and Abd. Hamid, Mohd. Kamaruddin and Wan Alwi, Sharifah Rafidah and Abd. Manan, Zainuddin (2016) An industrial case study application in synthesizing a feasible heat exchanger network. In: Regional Conference on Chemical Engineering 2016, 21-22 Nov, 2016, Kuala Lumpur, Malaysia. http://dx.doi.org/10.3303/CET1756130
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
Abu Bakar, Suraya Hanim
Abd. Hamid, Mohd. Kamaruddin
Wan Alwi, Sharifah Rafidah
Abd. Manan, Zainuddin
An industrial case study application in synthesizing a feasible heat exchanger network
description Heat exchanger network synthesis (HENS) is an important part in the overall chemical process. HENS links the process flowsheet with the utility system and generally involves a large fraction of both the overall plant capital cost, operating costs in terms of energy requirements, which is a key factor for a profitable process. The aims of the synthesis consist of finding a network design that minimises the total annualised cost, i.e. the investment cost in units and the operating cost in terms of utility consumption. In HENS, the feasibility of the HEN design does not take into consideration. As a consequence, the HEN design may not be able to be implemented into industrial applications. It is essential to check the feasibility of a design before it is being implemented into the industry. The objective of this paper is to present the application of a new flexible and operable heat exchanger network (FNO HEN) methodology in synthesising a feasible heat exchanger network (F-HEN) using an industrial case study. The aim of this work is to verify the existing industrial HEN design in terms of the process design point of view as well as the process feasibility. The existing industrial HEN design is verified in terms of Tmin value that gives minimum external energy requirement (EER) and heat exchanger area (HEA) as well as simultaneously analyse the feasibility of the HEN design. Using the new developed FNO HEN methodology framework, HEN design target, which is the value of Tmin is determined in order to obtain the F-HEN design. From process design point of view, Tmin value determines the size of heat exchanger in the network as well as energy saving. A process simulator is used to check the process feasibility of the HEN designs. With the use of the F-HEN trade-off plot, which is a plot of EER and HEA at different value of Tmin. with additional of feasibility area, the optimal feasible HEN design which satisfies external energy requirement (operability), heat exchanger area (capital) and process feasibility has been successfully determined in an easy, systematic and efficient manner.
format Conference or Workshop Item
author Abu Bakar, Suraya Hanim
Abd. Hamid, Mohd. Kamaruddin
Wan Alwi, Sharifah Rafidah
Abd. Manan, Zainuddin
author_facet Abu Bakar, Suraya Hanim
Abd. Hamid, Mohd. Kamaruddin
Wan Alwi, Sharifah Rafidah
Abd. Manan, Zainuddin
author_sort Abu Bakar, Suraya Hanim
title An industrial case study application in synthesizing a feasible heat exchanger network
title_short An industrial case study application in synthesizing a feasible heat exchanger network
title_full An industrial case study application in synthesizing a feasible heat exchanger network
title_fullStr An industrial case study application in synthesizing a feasible heat exchanger network
title_full_unstemmed An industrial case study application in synthesizing a feasible heat exchanger network
title_sort industrial case study application in synthesizing a feasible heat exchanger network
publisher UTM-FKT
publishDate 2016
url http://eprints.utm.my/id/eprint/66976/
http://dx.doi.org/10.3303/CET1756130
_version_ 1643655872286556160
score 13.211869

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