Novel Model for The Energy Minimisation of Natural Gas Transmission Networks

Natural gas transmission through an extensive pipeline network is an energy consuming process required gas compression due to significant pressure drop. The main difficulties in optimising a natural gas transmission network are the nonconvexities of the pressure drop and the compressor constraints....

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Main Authors: Y. Liang, E. Pahija, C.-W. Hui
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2017-10-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/138
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author Y. Liang
E. Pahija
C.-W. Hui
author_facet Y. Liang
E. Pahija
C.-W. Hui
author_sort Y. Liang
collection DOAJ
description Natural gas transmission through an extensive pipeline network is an energy consuming process required gas compression due to significant pressure drop. The main difficulties in optimising a natural gas transmission network are the nonconvexities of the pressure drop and the compressor constraints. To address the nonconvex issues, a novel model is proposed and demonstrated using an energy minimisation problem of natural gas transmission networks. The new model overcomes the nonconvexity of the pressure drop constraints by convexifying them into convex constraints, and addresses the nonconvex compressor constraints by rewriting them in to convex constraints and concave constraints. The model is formulated as a mixed-integer nonlinear programming (MINLP) model and tested by two different sizes networks. Computational results show the proposed model significantly reduces the solution time and improve solution quality.
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spelling doaj.art-68ce63b2e4054185b38caca26a0d9a7a2022-12-22T04:17:57ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162017-10-016110.3303/CET1761085Novel Model for The Energy Minimisation of Natural Gas Transmission NetworksY. LiangE. PahijaC.-W. HuiNatural gas transmission through an extensive pipeline network is an energy consuming process required gas compression due to significant pressure drop. The main difficulties in optimising a natural gas transmission network are the nonconvexities of the pressure drop and the compressor constraints. To address the nonconvex issues, a novel model is proposed and demonstrated using an energy minimisation problem of natural gas transmission networks. The new model overcomes the nonconvexity of the pressure drop constraints by convexifying them into convex constraints, and addresses the nonconvex compressor constraints by rewriting them in to convex constraints and concave constraints. The model is formulated as a mixed-integer nonlinear programming (MINLP) model and tested by two different sizes networks. Computational results show the proposed model significantly reduces the solution time and improve solution quality.https://www.cetjournal.it/index.php/cet/article/view/138
spellingShingle Y. Liang
E. Pahija
C.-W. Hui
Novel Model for The Energy Minimisation of Natural Gas Transmission Networks
Chemical Engineering Transactions
title Novel Model for The Energy Minimisation of Natural Gas Transmission Networks
title_full Novel Model for The Energy Minimisation of Natural Gas Transmission Networks
title_fullStr Novel Model for The Energy Minimisation of Natural Gas Transmission Networks
title_full_unstemmed Novel Model for The Energy Minimisation of Natural Gas Transmission Networks
title_short Novel Model for The Energy Minimisation of Natural Gas Transmission Networks
title_sort novel model for the energy minimisation of natural gas transmission networks
url https://www.cetjournal.it/index.php/cet/article/view/138
work_keys_str_mv AT yliang novelmodelfortheenergyminimisationofnaturalgastransmissionnetworks
AT epahija novelmodelfortheenergyminimisationofnaturalgastransmissionnetworks
AT cwhui novelmodelfortheenergyminimisationofnaturalgastransmissionnetworks