Details
| Original language | English |
|---|---|
| Title of host publication | 14th European Conference on Turbomachinery Fluid dynamics & Thermodynamics |
| Number of pages | 12 |
| Publication status | Published - 2023 |
| Event | 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023, ETC 2023 - Budapest, Hungary Duration: 24 Apr 2023 → 28 Apr 2023 |
Publication series
| Name | European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC |
|---|---|
| ISSN (Print) | 2313-0067 |
| ISSN (electronic) | 2410-4833 |
Abstract
A novel hydrogen recirculation blower (HRB) for PEM fuel cells has been developed and tested with different gas mixtures of hydrogen and nitrogen. The blower is based on a centrifugal turbo compressor driven by a special electric motor: the media gap motor. This motor concept provides hermetic separation of the fluid. The achievable mass flow rate and pressure ratio of the blower are a function of the fluid properties, which change dynamically during operation of the fuel cell system. The continuous change in the pressure ratio can be calculated using the conventional characteristic numbers of turbomachines Ψ and φ, and following the laws of Mach-number similarity. This approach is implemented for the first time in a fuel cell system simulation model to study the behavior of the HRB dynamically. It can be shown that the operation of the HRB can be predicted using the model. The new recirculation blower can achieve very efficient recirculation throughout the operating range when a WLTC drive cycle is performed using a 100kW Stack. Dynamic operating point changes and purge cycles are also possible.
Keywords
- CENTRIFUGAL COMPRESSOR, FUEL CELL, HYDROGEN, MEDIA GAP MOTOR, RECIRCULATION
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Mechanics of Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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14th European Conference on Turbomachinery Fluid dynamics & Thermodynamics. 2023. (European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Novel anode recirculation blower for PEM fuel cells
AU - Nachtigal, P.
AU - Gößling, S.
AU - Schuemie, H.
AU - Kentschke, T.
AU - Smyrek, F.
AU - Szesny, M.
AU - Yang, B.
AU - Klunker, C.
AU - Seume, J. 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 Climate Action based on a resolution of the German Bundestag. The project is organized within the framework of the ZIM program. The funding number is ZF4842901BR9 (TFD), ZF4638607BR9 (ZBT) and ZF4830801BR9 (G+L).
PY - 2023
Y1 - 2023
N2 - A novel hydrogen recirculation blower (HRB) for PEM fuel cells has been developed and tested with different gas mixtures of hydrogen and nitrogen. The blower is based on a centrifugal turbo compressor driven by a special electric motor: the media gap motor. This motor concept provides hermetic separation of the fluid. The achievable mass flow rate and pressure ratio of the blower are a function of the fluid properties, which change dynamically during operation of the fuel cell system. The continuous change in the pressure ratio can be calculated using the conventional characteristic numbers of turbomachines Ψ and φ, and following the laws of Mach-number similarity. This approach is implemented for the first time in a fuel cell system simulation model to study the behavior of the HRB dynamically. It can be shown that the operation of the HRB can be predicted using the model. The new recirculation blower can achieve very efficient recirculation throughout the operating range when a WLTC drive cycle is performed using a 100kW Stack. Dynamic operating point changes and purge cycles are also possible.
AB - A novel hydrogen recirculation blower (HRB) for PEM fuel cells has been developed and tested with different gas mixtures of hydrogen and nitrogen. The blower is based on a centrifugal turbo compressor driven by a special electric motor: the media gap motor. This motor concept provides hermetic separation of the fluid. The achievable mass flow rate and pressure ratio of the blower are a function of the fluid properties, which change dynamically during operation of the fuel cell system. The continuous change in the pressure ratio can be calculated using the conventional characteristic numbers of turbomachines Ψ and φ, and following the laws of Mach-number similarity. This approach is implemented for the first time in a fuel cell system simulation model to study the behavior of the HRB dynamically. It can be shown that the operation of the HRB can be predicted using the model. The new recirculation blower can achieve very efficient recirculation throughout the operating range when a WLTC drive cycle is performed using a 100kW Stack. Dynamic operating point changes and purge cycles are also possible.
KW - CENTRIFUGAL COMPRESSOR
KW - FUEL CELL
KW - HYDROGEN
KW - MEDIA GAP MOTOR
KW - RECIRCULATION
UR - http://www.scopus.com/inward/record.url?scp=85177665606&partnerID=8YFLogxK
U2 - 10.29008/ETC2023-348
DO - 10.29008/ETC2023-348
M3 - Conference contribution
AN - SCOPUS:85177665606
T3 - European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC
BT - 14th European Conference on Turbomachinery Fluid dynamics & Thermodynamics
T2 - 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023, ETC 2023
Y2 - 24 April 2023 through 28 April 2023
ER -