Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility

Current economic uncertainties and tighter environmental regulations has led industries to consider energy conservation projects more seriously. In this paper, the option of varying the process stream temperature has been suggested as a mean of increasing heat recovery for heat exchanger networks (H...

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Main Authors: Osman, A., Mutalib, M.I.A., Shigidi, I.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.31028 /
Published: Elsevier B.V. 2016
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018523239&doi=10.1016%2fj.sajce.2016.05.002&partnerID=40&md5=7703a602d587885b69a07bf5c0beaafc
http://eprints.utp.edu.my/31028/
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spelling utp-eprints.310282022-03-25T07:53:39Z Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility Osman, A. Mutalib, M.I.A. Shigidi, I. Current economic uncertainties and tighter environmental regulations has led industries to consider energy conservation projects more seriously. In this paper, the option of varying the process stream temperature has been suggested as a mean of increasing heat recovery for heat exchanger networks (HEN). Alternatives are generated and assessed using a developed approach. Essentially, the approach involves systematic steps in varying the Hot and/or Cold streams� temperature for each stream in a way that increases the heat recovery approach temperature (HRAT), thus allowing more heat to be recovered. Using the combinatorial method of paths combinations, the adjustment of heat loads for hot and cold utilities from the heat load shifting through the heat exchanger network could be made and assessed accordingly. The changes in temperature made to the streams while exploring each alternative has to be kept within small magnitude i.e., around 1�5 °C. A user friendly computer program has been developed for performing the approach in view of the significant number of iterations required. An example is used in this paper to demonstrate the application of the developed approach. © 2016 The Authors Elsevier B.V. 2016 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018523239&doi=10.1016%2fj.sajce.2016.05.002&partnerID=40&md5=7703a602d587885b69a07bf5c0beaafc Osman, A. and Mutalib, M.I.A. and Shigidi, I. (2016) Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility. South African Journal of Chemical Engineering, 21 . pp. 37-48. http://eprints.utp.edu.my/31028/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Current economic uncertainties and tighter environmental regulations has led industries to consider energy conservation projects more seriously. In this paper, the option of varying the process stream temperature has been suggested as a mean of increasing heat recovery for heat exchanger networks (HEN). Alternatives are generated and assessed using a developed approach. Essentially, the approach involves systematic steps in varying the Hot and/or Cold streams� temperature for each stream in a way that increases the heat recovery approach temperature (HRAT), thus allowing more heat to be recovered. Using the combinatorial method of paths combinations, the adjustment of heat loads for hot and cold utilities from the heat load shifting through the heat exchanger network could be made and assessed accordingly. The changes in temperature made to the streams while exploring each alternative has to be kept within small magnitude i.e., around 1�5 °C. A user friendly computer program has been developed for performing the approach in view of the significant number of iterations required. An example is used in this paper to demonstrate the application of the developed approach. © 2016 The Authors
format Article
author Osman, A.
Mutalib, M.I.A.
Shigidi, I.
spellingShingle Osman, A.
Mutalib, M.I.A.
Shigidi, I.
Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility
author_sort Osman, A.
title Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility
title_short Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility
title_full Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility
title_fullStr Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility
title_full_unstemmed Heat recovery enhancement in HENs using a combinatorial approach of paths combination and process streams� temperature flexibility
title_sort heat recovery enhancement in hens using a combinatorial approach of paths combination and process streams� temperature flexibility
publisher Elsevier B.V.
publishDate 2016
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018523239&doi=10.1016%2fj.sajce.2016.05.002&partnerID=40&md5=7703a602d587885b69a07bf5c0beaafc
http://eprints.utp.edu.my/31028/
_version_ 1741197507342368768
score 11.62408

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