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Etude thermodynamique sur la cogénération d'électricité et de refroidissement à partir du GNL.

Thermodynamic study of the simultaneous production of electrical and cooling power from LNG.

Auteurs : PARISE J. A. R., ESTEVES A. D. S.

Résumé

The paper studies the use of LNG for electrical power production. Typical regasification systems, open rack vaporizers and submerged combustion vaporizers, do not envisage the possibility of recovering the cryogenic energy of the liquefied natural gas (LNG) for producing refrigeration power, which may be needed down the electrical power utilization chain. A simple thermodynamic analysis compares the energy utilization efficiency of a LNG electrical and cooling power cogeneration arrangement with conventional thermo-electrical power systems making use of LNG as fuel. Energy conservation fundamental principles are applied in the analysis to provide a description of the thermal behaviour of the system, in terms of the electrical and cooling power demands. The energy efficiency of the cogeneration scheme is compared to those of traditional regasification systems, in terms of the electrical power to cooling load ratio. Typical system configurations, capable of matching cooling and electricity demands in a realistic situation, were devised for this preliminary analysis.

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Pages : 2008-1

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Détails

  • Titre original : Thermodynamic study of the simultaneous production of electrical and cooling power from LNG.
  • Identifiant de la fiche : 2008-1499
  • Langues : Anglais
  • Source : Cryogenics 2008. Proceedings of the 10th IIR International Conference
  • Date d'édition : 21/04/2008

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