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Extended Exergy Analysis Applied to an Offshore Platform Flare Stack

[+] Author Affiliations
Sosimo E. Diaz-Mendez, Abel Hernandez-Guerrero, Victor Hugo Rangel-Hernandez

Universidad de Guanajuato, Salamanca, GTO, Mexico

Enrico Sciubba

University of Roma 1 “La Sapienza”, Roma, Italy

Paper No. IMECE2009-12028, pp. 159-164; 6 pages
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 6: Emerging Technologies: Alternative Energy Systems; Energy Systems: Analysis, Thermodynamics and Sustainability
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4379-6 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME


An original procedure based on the EEA method (Extended Exergy Accounting) is described and implemented in this paper. The goal is the quantification of the environmental externality linked to the chemicals released by an offshore platform flare stack (SOX and NOX ). The extended exergy calculations provide a measure of both the exergy flux released into the environment by the offshore platform flare stack and its “cost” in primary resource equivalents. Idealized processes are assumed for the effluent treatment, and this bears a non-negligible influence on the final resource cost. As a further example of the application, it is shown that both the environmental damage and the product costs can be reduced if hot gas recycling is enforced.

Copyright © 2009 by ASME



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