Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine
The importance of hydrogen in the effort to decarbonize the power sector has grown immensely in recent years. Previous studies have investigated the effects of mixing hydrogen into natural gas for gas turbine combustors, but limited studies have examined the resulting effects hydrogen addition has o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Energy Conversion and Management: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174523000508 |
| _version_ | 1797802139169325056 |
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| author | Brent B. Skabelund Cody D. Jenkins Ellen B. Stechel Ryan J. Milcarek |
| author_facet | Brent B. Skabelund Cody D. Jenkins Ellen B. Stechel Ryan J. Milcarek |
| author_sort | Brent B. Skabelund |
| collection | DOAJ |
| description | The importance of hydrogen in the effort to decarbonize the power sector has grown immensely in recent years. Previous studies have investigated the effects of mixing hydrogen into natural gas for gas turbine combustors, but limited studies have examined the resulting effects hydrogen addition has on the entire system. In this work, a thermodynamic model of a gas turbine with combustion chemical kinetics integrated is created and the effects hydrogen addition (0–100 vol% addition) has on the system performance, emissions and combustion kinetics are analyzed. The maximum system performance is achieved when the maximum turbine inlet temperature is reached, and the resulting optimal fuel/air equivalence ratio is determined. As hydrogen is added to the fuel mixture, the optimal equivalence ratio shifts leaner, causing non-linearity in emissions and system performance at optimal conditions. An analysis of variance is conducted, and it is shown that isentropic efficiencies of the turbine and compressor influences the system performance the most out of any system parameter. While isentropic efficiencies of the turbine and compressor increase towards 100%, an operating regime where the optimal system efficiency cannot be achieved is discovered due to the lower flammability limit of the fuel being reached. This can be overcome by mixing hydrogen into the fuel. |
| first_indexed | 2024-03-13T05:01:10Z |
| format | Article |
| id | doaj.art-d96f705322604bb899a7da3de9eb4a09 |
| institution | Directory Open Access Journal |
| issn | 2590-1745 |
| language | English |
| last_indexed | 2024-03-13T05:01:10Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj.art-d96f705322604bb899a7da3de9eb4a092023-06-17T05:20:56ZengElsevierEnergy Conversion and Management: X2590-17452023-07-0119100394Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbineBrent B. Skabelund0Cody D. Jenkins1Ellen B. Stechel2Ryan J. Milcarek3School for Engineering of Matter, Transport and Energy, Arizona State University, 501 E. Tyler Mall, Tempe, AZ 85287-6106, USASchool for Engineering of Matter, Transport and Energy, Arizona State University, 501 E. Tyler Mall, Tempe, AZ 85287-6106, USAASU LightWorks® and the School of Molecular Sciences, Arizona State University, PO Box 875402, Tempe, AZ 85287-5402, USASchool for Engineering of Matter, Transport and Energy, Arizona State University, 501 E. Tyler Mall, Tempe, AZ 85287-6106, USA; Corresponding author.The importance of hydrogen in the effort to decarbonize the power sector has grown immensely in recent years. Previous studies have investigated the effects of mixing hydrogen into natural gas for gas turbine combustors, but limited studies have examined the resulting effects hydrogen addition has on the entire system. In this work, a thermodynamic model of a gas turbine with combustion chemical kinetics integrated is created and the effects hydrogen addition (0–100 vol% addition) has on the system performance, emissions and combustion kinetics are analyzed. The maximum system performance is achieved when the maximum turbine inlet temperature is reached, and the resulting optimal fuel/air equivalence ratio is determined. As hydrogen is added to the fuel mixture, the optimal equivalence ratio shifts leaner, causing non-linearity in emissions and system performance at optimal conditions. An analysis of variance is conducted, and it is shown that isentropic efficiencies of the turbine and compressor influences the system performance the most out of any system parameter. While isentropic efficiencies of the turbine and compressor increase towards 100%, an operating regime where the optimal system efficiency cannot be achieved is discovered due to the lower flammability limit of the fuel being reached. This can be overcome by mixing hydrogen into the fuel.http://www.sciencedirect.com/science/article/pii/S2590174523000508Hydrogen combustionGas turbine performanceThermodynamic modelingFuel compositionParametric study |
| spellingShingle | Brent B. Skabelund Cody D. Jenkins Ellen B. Stechel Ryan J. Milcarek Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine Energy Conversion and Management: X Hydrogen combustion Gas turbine performance Thermodynamic modeling Fuel composition Parametric study |
| title | Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine |
| title_full | Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine |
| title_fullStr | Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine |
| title_full_unstemmed | Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine |
| title_short | Thermodynamic and emission analysis of a hydrogen/methane fueled gas turbine |
| title_sort | thermodynamic and emission analysis of a hydrogen methane fueled gas turbine |
| topic | Hydrogen combustion Gas turbine performance Thermodynamic modeling Fuel composition Parametric study |
| url | http://www.sciencedirect.com/science/article/pii/S2590174523000508 |
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