Details
| Original language | English |
|---|---|
| Title of host publication | ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition |
| Subtitle of host publication | Education; Electric Power; Fans and Blowers |
| Publisher | American Society of Mechanical Engineers(ASME) |
| Number of pages | 11 |
| ISBN (electronic) | 9780791886021 |
| Publication status | Published - 28 Oct 2022 |
| Event | ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022 - Rotterdam, Netherlands Duration: 13 Jun 2022 → 17 Jun 2022 |
Publication series
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Volume | 5 |
Abstract
This paper focuses on the design, construction and the experimental testing of an anode recirculation blower (ARB) based on a turbo-compressor for PEM-FCs. The blower presented consists of a high-speed centrifugal compressor, driven by a so-called media-gap motor. Additionally it includes a droplet separator to eliminate liquid water from the anode loop. The aerodynamic design is based on 1D-correlations and 3D-numerical CFD simulations. Different gas compositions of hydrogen, nitrogen and water vapor are considered in the design, depending on the operating points of a PEM-FC. The gas composition has a significant influence on the achievable pressure ratio at constant compressor speeds, depending mainly on the specific heat capacity of the gas. Performance maps for different gas compositions are calculated using CFD for the designed ARB. A prototype is built and tested. The results validate the CFD predictions and show that the operating range of a PEM fuel cell can be covered with the present blower. In addition, it could be shown that an enthalpy-based approach using common characteristic numbers of turbomachines, allows converting performance maps - acquired with different gas compositions - into one another. This allows the performance map prediction for different gas compositions based on existing performance maps. This approach is illustrated by numerical and experimental results.
Keywords
- Droplet, Fuel Cell Applications, Hydrogen, Turbomachinery
ASJC Scopus subject areas
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ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition: Education; Electric Power; Fans and Blowers. American Society of Mechanical Engineers(ASME), 2022. V005T10A006 (Proceedings of the ASME Turbo Expo; Vol. 5).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Experimentally Validated Design of an Anode Recirculation Blower for PEM Fuel Cells Under Variable Fluid Composition
AU - Nachtigal, Philipp
AU - Kentschke, Thorge
AU - Seume, Joerg R.
N1 - Funding Information: This paper contains some of the results of the publicly funded project “REZEBT”, which has been supported by the German Federal Ministry for Economic Affairs and Energy. The project is organized within the framework of the ZIM program.
PY - 2022/10/28
Y1 - 2022/10/28
N2 - This paper focuses on the design, construction and the experimental testing of an anode recirculation blower (ARB) based on a turbo-compressor for PEM-FCs. The blower presented consists of a high-speed centrifugal compressor, driven by a so-called media-gap motor. Additionally it includes a droplet separator to eliminate liquid water from the anode loop. The aerodynamic design is based on 1D-correlations and 3D-numerical CFD simulations. Different gas compositions of hydrogen, nitrogen and water vapor are considered in the design, depending on the operating points of a PEM-FC. The gas composition has a significant influence on the achievable pressure ratio at constant compressor speeds, depending mainly on the specific heat capacity of the gas. Performance maps for different gas compositions are calculated using CFD for the designed ARB. A prototype is built and tested. The results validate the CFD predictions and show that the operating range of a PEM fuel cell can be covered with the present blower. In addition, it could be shown that an enthalpy-based approach using common characteristic numbers of turbomachines, allows converting performance maps - acquired with different gas compositions - into one another. This allows the performance map prediction for different gas compositions based on existing performance maps. This approach is illustrated by numerical and experimental results.
AB - This paper focuses on the design, construction and the experimental testing of an anode recirculation blower (ARB) based on a turbo-compressor for PEM-FCs. The blower presented consists of a high-speed centrifugal compressor, driven by a so-called media-gap motor. Additionally it includes a droplet separator to eliminate liquid water from the anode loop. The aerodynamic design is based on 1D-correlations and 3D-numerical CFD simulations. Different gas compositions of hydrogen, nitrogen and water vapor are considered in the design, depending on the operating points of a PEM-FC. The gas composition has a significant influence on the achievable pressure ratio at constant compressor speeds, depending mainly on the specific heat capacity of the gas. Performance maps for different gas compositions are calculated using CFD for the designed ARB. A prototype is built and tested. The results validate the CFD predictions and show that the operating range of a PEM fuel cell can be covered with the present blower. In addition, it could be shown that an enthalpy-based approach using common characteristic numbers of turbomachines, allows converting performance maps - acquired with different gas compositions - into one another. This allows the performance map prediction for different gas compositions based on existing performance maps. This approach is illustrated by numerical and experimental results.
KW - Droplet
KW - Fuel Cell Applications
KW - Hydrogen
KW - Turbomachinery
UR - http://www.scopus.com/inward/record.url?scp=85141743320&partnerID=8YFLogxK
U2 - 10.1115/GT2022-80525
DO - 10.1115/GT2022-80525
M3 - Conference contribution
AN - SCOPUS:85141743320
T3 - Proceedings of the ASME Turbo Expo
BT - ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022
Y2 - 13 June 2022 through 17 June 2022
ER -