Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection

Gas turbine power plants have important roles in the global power generation market. This paper, for the first time, thermodynamically examines the impact of steam injection for a combined cycle, including a gas turbine cycle with a two-stage turbine and carbon dioxide recompression. The combined cy...

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Main Authors: S. Hamed Fatemi Alavi, Amirreza Javaherian, S. M. S. Mahmoudi, Saeed Soltani, Marc A. Rosen
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Clean Technologies
Subjects:
Online Access:https://www.mdpi.com/2571-8797/5/3/56
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author S. Hamed Fatemi Alavi
Amirreza Javaherian
S. M. S. Mahmoudi
Saeed Soltani
Marc A. Rosen
author_facet S. Hamed Fatemi Alavi
Amirreza Javaherian
S. M. S. Mahmoudi
Saeed Soltani
Marc A. Rosen
author_sort S. Hamed Fatemi Alavi
collection DOAJ
description Gas turbine power plants have important roles in the global power generation market. This paper, for the first time, thermodynamically examines the impact of steam injection for a combined cycle, including a gas turbine cycle with a two-stage turbine and carbon dioxide recompression. The combined cycle is compared with the simple case without steam injection. Steam injection’s impact was observed on important parameters such as energy efficiency, exergy efficiency, and output power. It is revealed that the steam injection reduced exergy destruction in components compared to the simple case. The efficiencies for both cases were obtained. The energy and exergy efficiencies, respectively, were found to be 30.4% and 29.4% for the simple case, and 35.3% and 34.1% for the case with steam injection. Also, incorporating steam injection reduced the emissions of carbon dioxide.
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spelling doaj.art-6020c4b87f87436dbf015190e51c7de02023-11-19T10:05:44ZengMDPI AGClean Technologies2571-87972023-09-01531115113910.3390/cleantechnol5030056Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam InjectionS. Hamed Fatemi Alavi0Amirreza Javaherian1S. M. S. Mahmoudi2Saeed Soltani3Marc A. Rosen4Faculty of Mechanical Engineering, University of Tabriz, Tabriz 16471, IranFaculty of Mechanical Engineering, University of Tabriz, Tabriz 16471, IranFaculty of Mechanical Engineering, University of Tabriz, Tabriz 16471, IranFaculty of Mechanical Engineering, University of Tabriz, Tabriz 16471, IranFaculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, ON L1G 0C5, CanadaGas turbine power plants have important roles in the global power generation market. This paper, for the first time, thermodynamically examines the impact of steam injection for a combined cycle, including a gas turbine cycle with a two-stage turbine and carbon dioxide recompression. The combined cycle is compared with the simple case without steam injection. Steam injection’s impact was observed on important parameters such as energy efficiency, exergy efficiency, and output power. It is revealed that the steam injection reduced exergy destruction in components compared to the simple case. The efficiencies for both cases were obtained. The energy and exergy efficiencies, respectively, were found to be 30.4% and 29.4% for the simple case, and 35.3% and 34.1% for the case with steam injection. Also, incorporating steam injection reduced the emissions of carbon dioxide.https://www.mdpi.com/2571-8797/5/3/56combined cyclegas turbinesteam injectionrecompression supercritical carbon dioxideenergy analysisexergy analysis
spellingShingle S. Hamed Fatemi Alavi
Amirreza Javaherian
S. M. S. Mahmoudi
Saeed Soltani
Marc A. Rosen
Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection
Clean Technologies
combined cycle
gas turbine
steam injection
recompression supercritical carbon dioxide
energy analysis
exergy analysis
title Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection
title_full Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection
title_fullStr Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection
title_full_unstemmed Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection
title_short Coupling a Gas Turbine Bottoming Cycle Using CO<sub>2</sub> as the Working Fluid with a Gas Cycle: Exergy Analysis Considering Combustion Chamber Steam Injection
title_sort coupling a gas turbine bottoming cycle using co sub 2 sub as the working fluid with a gas cycle exergy analysis considering combustion chamber steam injection
topic combined cycle
gas turbine
steam injection
recompression supercritical carbon dioxide
energy analysis
exergy analysis
url https://www.mdpi.com/2571-8797/5/3/56
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