Environomic Optimization for Combined Plants Including CO2 Influence FREE

[+] Author Affiliations
M. Santarelli, R. Borchiellini

Politecnico di Torino, Torino, Italy

A. F. Massardo

Università di Genova, Genova, Italy

Paper No. 99-GT-005, pp. V002T04A002; 8 pages
  • ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Indianapolis, Indiana, USA, June 7–10, 1999
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7859-0
  • Copyright © 1999 by ASME


In the paper two environomic procedures for the analysis and the optimization of energy systems, where environmental considerations are taken into account together with thermodynamic and economic ones, are presented. The aim is the assignment to energy plants of costs linked to their pollutant activities. The problem is faced with two different environomic approaches: (a) a method assigning a cost to the pollutant emissions (environmental cost); (b) a method assigning a cost to the exergy destroyed inside the system and rejected in the biosphere with the plant wastes (efficiency penalty).

As an example the environomic analysis is developed considering the pollutant emissions (CO, NOx and SOx) of an existing 700 MW combined power plant. Finally, a procedure to determine an efficiency penalty to the emitted CO2 is presented, and a comparison is developed between the results obtained by the two environomic approaches.

Copyright © 1999 by ASME
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