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An heuristic approach for optimal location of gas supply units in transportation system
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Orientador(es)
Resumo(s)
The best places to locate the Gas Supply Units (GSUs) on a natural gas systems and their optimal allocation to loads are the key factors to organize an efficient upstream gas infrastructure. The number of
GSUs and their optimal location in a gas network is a decision problem that can be formulated as a linear programming problem.
Our emphasis is on the formulation and use of a suitable location model, reflecting real-world operations and constraints of a natural gas system. This paper presents a heuristic model, based on lagrangean approach, developed for finding the optimal GSUs location on a natural gas network, minimizing expenses and maximizing throughput and security of supply.The location model is applied to the Iberian high pressure natural gas network, a system modelised with 65 demand nodes. These nodes are linked by physical and virtual pipelines – road trucks with gas in liquefied form. The location model result shows the best places to locate, with the optimal demand allocation and the most economical gas transport mode: by pipeline or by road truck.
Descrição
Palavras-chave
Facility location Gas supply units – GSUs Physical pipeline Virtual pipeline p-median problem Lagrangean relaxation Subgradient optimization
Contexto Educativo
Citação
Editora
Croatian Gas Centre and Croatian Gas Association