Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger
Hydrogen fuel cell technology is identified as one option for allowing efficient vehicular propulsion with the least environmental impact on the path to a carbon-free society. Since more than 20 years, IHI is providing charging systems for stationary fuel cell applications and since 2004 for mobile...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2021/3972387 |
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| author | Dietmar Filsinger Gen Kuwata Nobuyuki Ikeya |
| author_facet | Dietmar Filsinger Gen Kuwata Nobuyuki Ikeya |
| author_sort | Dietmar Filsinger |
| collection | DOAJ |
| description | Hydrogen fuel cell technology is identified as one option for allowing efficient vehicular propulsion with the least environmental impact on the path to a carbon-free society. Since more than 20 years, IHI is providing charging systems for stationary fuel cell applications and since 2004 for mobile fuel cell applications. The power density of fuel cells substantially increases if the system is pressurized. However, contaminants from fuel cell system components like structural materials, lubricants, adhesives, sealants, and hoses have been shown to affect the performance and durability of fuel cells. Therefore, the charging system that increases the pressure and the power density of the stacks inevitably needs to be oil-free. For this reason, gas bearings are applied to support the rotor of a fuel cell turbocharger. It furthermore comprises a turbine, a compressor, and, on the same shaft, an electric motor. The turbine utilizes the exhaust energy of the stack to support the compressor and hence lower the required electric power of the air supply system. The presented paper provides an overview of the fuel cell turbocharger technology. Detailed performance investigations show that a single-stage compressor with turbine is more efficient compared to a two-stage compressor system with intercooler. The turbine can provide more than 30% of the required compressor power. Hence, it substantially increases the system efficiency. It is also shown that a fixed geometry turbine design is appropriate for most applications. The compressor is of a low specific speed type with a vaneless diffuser. It is optimized for operating conditions of fuel cell systems, which typically require pressure ratios in the range of 3.0. |
| format | Article |
| id | doaj-art-2d093bfd2bd0466b9fc99a111cb5ec41 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-2d093bfd2bd0466b9fc99a111cb5ec412025-02-03T07:23:27ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342021-01-01202110.1155/2021/39723873972387Tailored Centrifugal Turbomachinery for Electric Fuel Cell TurbochargerDietmar Filsinger0Gen Kuwata1Nobuyuki Ikeya2IHI Charging Systems International GmbH, 69168 Heidelberg, GermanyIHI Corporation, Corporate Strategy Headquarters, Tokyo 135-8710, JapanIHI Corporation, Vehicular Turbocharger Business Unit, Yokohama 235-8501, JapanHydrogen fuel cell technology is identified as one option for allowing efficient vehicular propulsion with the least environmental impact on the path to a carbon-free society. Since more than 20 years, IHI is providing charging systems for stationary fuel cell applications and since 2004 for mobile fuel cell applications. The power density of fuel cells substantially increases if the system is pressurized. However, contaminants from fuel cell system components like structural materials, lubricants, adhesives, sealants, and hoses have been shown to affect the performance and durability of fuel cells. Therefore, the charging system that increases the pressure and the power density of the stacks inevitably needs to be oil-free. For this reason, gas bearings are applied to support the rotor of a fuel cell turbocharger. It furthermore comprises a turbine, a compressor, and, on the same shaft, an electric motor. The turbine utilizes the exhaust energy of the stack to support the compressor and hence lower the required electric power of the air supply system. The presented paper provides an overview of the fuel cell turbocharger technology. Detailed performance investigations show that a single-stage compressor with turbine is more efficient compared to a two-stage compressor system with intercooler. The turbine can provide more than 30% of the required compressor power. Hence, it substantially increases the system efficiency. It is also shown that a fixed geometry turbine design is appropriate for most applications. The compressor is of a low specific speed type with a vaneless diffuser. It is optimized for operating conditions of fuel cell systems, which typically require pressure ratios in the range of 3.0.http://dx.doi.org/10.1155/2021/3972387 |
| spellingShingle | Dietmar Filsinger Gen Kuwata Nobuyuki Ikeya Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger International Journal of Rotating Machinery |
| title | Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger |
| title_full | Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger |
| title_fullStr | Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger |
| title_full_unstemmed | Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger |
| title_short | Tailored Centrifugal Turbomachinery for Electric Fuel Cell Turbocharger |
| title_sort | tailored centrifugal turbomachinery for electric fuel cell turbocharger |
| url | http://dx.doi.org/10.1155/2021/3972387 |
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