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Azep gas turbine combined cycle power plants thermo-economic analysis

Fredriksson Möller, Björn LU ; Torisson, Tord LU ; Assadi, Mohsen LU ; Sundkvist, SG; Sjodin, M; Klang, A; Asen, KI and Wilhelmsen, K (2005) 18th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2005) In Proceedings of Ecos 2005, Vols 1-3 - Shaping our future energy systems p.819-826
Abstract
Conventional power plants based on fossil fuel without CO2 capture produce flue gas streams with concentrations Of CO2 between 3% and 15%, contributing to the threat of increasing global warming. Existing capture technologies such as post-combustion flue gas treatment using chemical absorption or pre-combustion carbon removal suffer from significant efficiency penalties as well as major increase in investment costs. Alternatively, combustion in O-2/CO2 atmospheres also requires expensive and energy-consuming oxygen supplies. A less energy intensive concept for oxygen production is a Mixed Conducting Membrane (MCM) reactor which produces pure oxygen from compressed air. The MCM reactor is best integrated into a conventional gas turbine... (More)
Conventional power plants based on fossil fuel without CO2 capture produce flue gas streams with concentrations Of CO2 between 3% and 15%, contributing to the threat of increasing global warming. Existing capture technologies such as post-combustion flue gas treatment using chemical absorption or pre-combustion carbon removal suffer from significant efficiency penalties as well as major increase in investment costs. Alternatively, combustion in O-2/CO2 atmospheres also requires expensive and energy-consuming oxygen supplies. A less energy intensive concept for oxygen production is a Mixed Conducting Membrane (MCM) reactor which produces pure oxygen from compressed air. The MCM reactor is best integrated into a conventional gas turbine combined cycle, called Advanced Zero Emissions Plant (AZEP), to provide an efficient and cost-effective power plant altogether. In this paper the economic performance of four different combined cycle alternatives in two different gas turbine sizes are evaluated; a 50 MWe size based on the Siemens SGT800 gas turbine and a 400 MWe size based on the Siemens SGT5-4000F gas turbine. ne evaluated combined cycles are one conventional combined cycle, one combined cycle with post-combustion CO2 capture and two optimised AZEP cases from a previous thermodynamic study. One AZEP alternative provides 100% CO2 capture and is thus a true zero emissions alternative, whereas the second alternative uses a sequential combustion system which enables 85% of the CO2 to be captured, making a comparison with traditional post-combustion treatment easier. The results show that the AZEP concept presents a more competitive system in terms of efficiency and economy compared to traditional capture systems. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
thermo-economy, combined cycles, CO2 capture, zero emissions
in
Proceedings of Ecos 2005, Vols 1-3 - Shaping our future energy systems
pages
819 - 826
publisher
Norwegian University of Science and Technology
conference name
18th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2005)
conference location
Trondheim, Norway
conference dates
2005-06-20 - 2005-06-22
external identifiers
  • wos:000232156000101
  • scopus:33749001103
language
English
LU publication?
yes
id
db6db862-46e6-4f4a-bb8e-53180e3145b8 (old id 1406141)
date added to LUP
2009-06-08 13:19:26
date last changed
2018-05-29 09:19:14
@inproceedings{db6db862-46e6-4f4a-bb8e-53180e3145b8,
  abstract     = {Conventional power plants based on fossil fuel without CO2 capture produce flue gas streams with concentrations Of CO2 between 3% and 15%, contributing to the threat of increasing global warming. Existing capture technologies such as post-combustion flue gas treatment using chemical absorption or pre-combustion carbon removal suffer from significant efficiency penalties as well as major increase in investment costs. Alternatively, combustion in O-2/CO2 atmospheres also requires expensive and energy-consuming oxygen supplies. A less energy intensive concept for oxygen production is a Mixed Conducting Membrane (MCM) reactor which produces pure oxygen from compressed air. The MCM reactor is best integrated into a conventional gas turbine combined cycle, called Advanced Zero Emissions Plant (AZEP), to provide an efficient and cost-effective power plant altogether. In this paper the economic performance of four different combined cycle alternatives in two different gas turbine sizes are evaluated; a 50 MWe size based on the Siemens SGT800 gas turbine and a 400 MWe size based on the Siemens SGT5-4000F gas turbine. ne evaluated combined cycles are one conventional combined cycle, one combined cycle with post-combustion CO2 capture and two optimised AZEP cases from a previous thermodynamic study. One AZEP alternative provides 100% CO2 capture and is thus a true zero emissions alternative, whereas the second alternative uses a sequential combustion system which enables 85% of the CO2 to be captured, making a comparison with traditional post-combustion treatment easier. The results show that the AZEP concept presents a more competitive system in terms of efficiency and economy compared to traditional capture systems.},
  author       = {Fredriksson Möller, Björn and Torisson, Tord and Assadi, Mohsen and Sundkvist, SG and Sjodin, M and Klang, A and Asen, KI and Wilhelmsen, K},
  booktitle    = {Proceedings of Ecos 2005, Vols 1-3 - Shaping our future energy systems},
  keyword      = {thermo-economy,combined cycles,CO2 capture,zero emissions},
  language     = {eng},
  location     = {Trondheim, Norway},
  pages        = {819--826},
  publisher    = {Norwegian University of Science and Technology},
  title        = {Azep gas turbine combined cycle power plants thermo-economic analysis},
  year         = {2005},
}