Azep gas turbine combined cycle power plants thermo-economic analysis
(2005) 18th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2005) 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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1406141
- author
- Fredriksson Möller, Björn LU ; Torisson, Tord LU ; Assadi, Mohsen LU ; Sundkvist, SG ; Sjodin, M ; Klang, A ; Asen, KI and Wilhelmsen, K
- organization
- publishing date
- 2005
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- thermo-economy, combined cycles, CO2 capture, zero emissions
- host publication
- 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
- 2016-04-04 10:19:58
- date last changed
- 2022-04-16 01:39:51
@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}},
keywords = {{thermo-economy; combined cycles; CO2 capture; zero emissions}},
language = {{eng}},
pages = {{819--826}},
publisher = {{Norwegian University of Science and Technology}},
title = {{Azep gas turbine combined cycle power plants thermo-economic analysis}},
year = {{2005}},
}