Results 221 to 230 of about 114,482 (265)

Modelling and Optimization of Natural Gas Networks

2014
Abstract Logistics planning and optimization are key activities for the competitiveness of companies. An important area which can benefit from the new optimization techniques is undoubtedly natural gas transmission networks. The problem of gas network optimization deals with the question of how to operate the network, that is, taking decisions on ...
Tania Rodríguez, Daniel Sarabia, Mar Valbuena, César de Prada   +3 more
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Resilience-Based Design of Natural Gas Distribution Networks

Journal of Infrastructure Systems, 2015
The concept of disaster resilience has received considerable attention in recent years and is increasingly used as an approach for understanding the dynamic response to natural disasters. In this paper, a new performance index measuring the functionality of a gas distribution network has been proposed, which includes the restoration phase to evaluate ...
CIMELLARO, GIAN PAOLO, Villa, O., Bruneau, M.   +2 more
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Transient-State Natural Gas Transmission in Gunbarrel Pipeline Networks

INFORMS Journal on Computing, 2020
We study the energy consumption minimization problems of natural gas transmission in gunbarrel structured networks. In particular, we consider the transient-state dynamics of natural gas and the compressor’s nonlinear working domain and min-up-and-down constraints.
Shixuan Zhang, Sheng Liu 0006, Tianhu Deng, Zuo-Jun Max Shen   +3 more
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Optimal Location of Gas Supply Units in Natural Gas System Network

2011
Natural gas industry has been confronted with big challenges: great growth in demand, investments on new GSUs – gas supply units, and efficient technical system management. The right number of GSUs, their best location on networks and the optimal allocation to loads is a decision problem that can be formulated as a combinatorial programming problem ...
Nogueira, Teresa, Vale, Zita
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Unaccounted for gas in natural gas transport networks

2013
One of the main issues in the natural gas (NG) transport networks management is represented by the Unaccounted for Gas (UAG). UAG is the quantity to be considered in the balance equation to take into account the unavoidable errors due to measurements and estimations.
ARPINO, Fausto, CELENZA, Luca, D'ALESSIO, Raffaele, DELL'ISOLA, Marco, FICCO, Giorgio, VIGO, Paolo, VIOLA, Agostino   +6 more
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Stochastic optimal control model for natural gas networks

Computers & Chemical Engineering, 2014
Abstract We present a stochastic optimal control model to optimize gas network inventories in the face of system uncertainties. The model captures detailed network dynamics and operational constraints and uses a weighted risk-mean objective. We perform a degrees-of-freedom analysis to assess operational flexibility and to determine conditions for ...
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A Reduction Technique for Natural Gas Transmission Network Optimization Problems

Annals of Operations Research, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Roger Z. Ríos-Mercado, Suming Wu, L. Ridgway Scott, E. Andrew Boyd   +3 more
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Predictive Control of Gas Injection in Natural Gas Transport Networks

2015
The present sought to draw a comparison between Model Predictive Control performance and two other controllers named Simple PI and Selective PI in controlling large-scale natural gas transport networks. A nonlinear dynamic model of representative gas pipeline was derived from pipeline governing rules and simulated in SIMULINK® environment of MATLAB ...
Fanaei, Mohammad Ali, Zahed Rahimi, Shahram   +1 more
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Optimization of natural gas distribution networks

2020
ABSTRACT OPTIMIZATION OF NATURAL GAS DISTRIBUTION NETWORKS Öner, Dursun M. S., Department of Mechanical Engineering Supervisor: Prof. Dr. Y. Samim Ünlüsoy Co-Supervisor : Prof. Dr. O. Cahit Eralp January 1997, 123 pages The design of a gas distribution network involves definition of the network layout and, specification of the sizes of pipes to be laid.
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Social and economic risk analysis of natural gas distribution networks

International Journal of Critical Infrastructures
The continuity of service as well as with its safety and security represent a crucial issue for natural gas transmission and distribution networks and a detailed analysis of the associated risks is essential to increase their reliability. In particular, natural gas distribution networks are characterised by a high number of users and present a very ...
Fabrizio Zuena, Marco Dell', N.A. Isola, Giorgio Ficco, Luisa Lavalle, Alberto Tofani   +5 more
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