Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/1512
Título: Optimization model for medium term natural gas commitment
Autor: Nogueira, Teresa
Vale, Zita
Cardoso, José
Palavras-chave: Gas Supply Units - GSUs
P-median problem
Lagrangean heuristic
Virtual pipelines
Location model
Data: 2008
Editora: IEEE
Resumo: In this paper we study the optimal natural gas commitment for a known demand scenario. This study implies the best location of GSUs to supply all demands and the optimal allocation from sources to gas loads, through an appropriate transportation mode, in order to minimize total system costs. Our emphasis is on the formulation and use of a suitable optimization model, reflecting real-world operations and the constraints of natural gas systems. The mathematical model is based on a Lagrangean heuristic, using the Lagrangean relaxation, an efficient approach to solve the problem. Computational results are presented for Iberian and American natural gas systems, geographically organized in 65 and 88 load nodes, respectively. The location model results, supported by the computational application GasView, show the optimal location and allocation solution, system total costs and suggest a suitable gas transportation mode, presented in both numerical and graphic supports.
URI: http://hdl.handle.net/10400.22/1512
ISBN: 978-1-4244-1743-8
Versão do Editor: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4579070
Aparece nas colecções:ISEP – GECAD – Comunicações em eventos científicos

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