Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis

This work addresses the synthesis of heat-integrated water networks (HIWNs) by using a superstructure optimisation approach. A recently developed mixed-integer nonlinear programming (MINLP) model and an iterative solution strategy are applied in this work to a case study of HIWN. The objective funct...

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Autores principales:	Nidret Ibric, Elvis Ahmetovic, Zdravko Kravanja, Ignacio E. Grossmann
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/7ea7c88e51b6447bb109d180ea69d5d8
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spelling	oai:doaj.org-article:7ea7c88e51b6447bb109d180ea69d5d82021-11-15T21:47:04ZSynthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis10.3303/CET21881912283-9216https://doaj.org/article/7ea7c88e51b6447bb109d180ea69d5d82021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11984https://doaj.org/toc/2283-9216This work addresses the synthesis of heat-integrated water networks (HIWNs) by using a superstructure optimisation approach. A recently developed mixed-integer nonlinear programming (MINLP) model and an iterative solution strategy are applied in this work to a case study of HIWN. The objective function of the MINLP model is to minimise the network total annualised cost (TAC) comprising operating and investment costs. As there are trade-offs between operating and investment costs, good solutions can be obtained if the TAC is minimised by simultaneously exploring all water and heat integration opportunities within the network. A case study with sensitivity analysis is solved by analysing the impact of freshwater and utility costs on the network design and key performance indicators. The results indicate that in cases of low freshwater cost increased freshwater usage is forced and thus lowering wastewater regeneration/recycling and wastewater treatment cost. Increased freshwater flowrate is related to an increase of HEN investment. The high cost of freshwater could produce solutions with lower freshwater consumption compared to base case depending on utility cost and wastewater treatment cost. However, a decrease in freshwater consumption increases wastewater regeneration costs.Nidret IbricElvis AhmetovicZdravko KravanjaIgnacio E. GrossmannAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Nidret Ibric Elvis Ahmetovic Zdravko Kravanja Ignacio E. Grossmann Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis
description	This work addresses the synthesis of heat-integrated water networks (HIWNs) by using a superstructure optimisation approach. A recently developed mixed-integer nonlinear programming (MINLP) model and an iterative solution strategy are applied in this work to a case study of HIWN. The objective function of the MINLP model is to minimise the network total annualised cost (TAC) comprising operating and investment costs. As there are trade-offs between operating and investment costs, good solutions can be obtained if the TAC is minimised by simultaneously exploring all water and heat integration opportunities within the network. A case study with sensitivity analysis is solved by analysing the impact of freshwater and utility costs on the network design and key performance indicators. The results indicate that in cases of low freshwater cost increased freshwater usage is forced and thus lowering wastewater regeneration/recycling and wastewater treatment cost. Increased freshwater flowrate is related to an increase of HEN investment. The high cost of freshwater could produce solutions with lower freshwater consumption compared to base case depending on utility cost and wastewater treatment cost. However, a decrease in freshwater consumption increases wastewater regeneration costs.
format	article
author	Nidret Ibric Elvis Ahmetovic Zdravko Kravanja Ignacio E. Grossmann
author_facet	Nidret Ibric Elvis Ahmetovic Zdravko Kravanja Ignacio E. Grossmann
author_sort	Nidret Ibric
title	Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis
title_short	Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis
title_full	Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis
title_fullStr	Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis
title_full_unstemmed	Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis
title_sort	synthesis of heat-integrated water networks: case study with sensitivity analysis
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/7ea7c88e51b6447bb109d180ea69d5d8
work_keys_str_mv	AT nidretibric synthesisofheatintegratedwaternetworkscasestudywithsensitivityanalysis AT elvisahmetovic synthesisofheatintegratedwaternetworkscasestudywithsensitivityanalysis AT zdravkokravanja synthesisofheatintegratedwaternetworkscasestudywithsensitivityanalysis AT ignacioegrossmann synthesisofheatintegratedwaternetworkscasestudywithsensitivityanalysis
_version_	1718426852250353664

Synthesis of Heat-Integrated Water Networks: Case Study with Sensitivity Analysis

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