Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations
Fuel cell systems often utilize a hydrogen recirculation system to redirect and transport surplus hydrogen back to the anode, which enhances fuel consumption and boosts the efficiency of the fuel cell. Hydrogen recirculation pumps and ejectors are the most investigated systems. Ejectors are gaining...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/19/4815 |
| _version_ | 1827066301427744768 |
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| author | Masoud Arabbeiki Mohsen Mansourkiaei Domenico Ferrero Massimo Santarelli |
| author_facet | Masoud Arabbeiki Mohsen Mansourkiaei Domenico Ferrero Massimo Santarelli |
| author_sort | Masoud Arabbeiki |
| collection | DOAJ |
| description | Fuel cell systems often utilize a hydrogen recirculation system to redirect and transport surplus hydrogen back to the anode, which enhances fuel consumption and boosts the efficiency of the fuel cell. Hydrogen recirculation pumps and ejectors are the most investigated systems. Ejectors are gaining recognition as an essential device in fuel cell systems. However, their application in hydrogen recirculation systems is often limited by a narrow operational range. Therefore, it is advantageous to compile the present condition of the study on various ejector shapes as well as configurations that can accommodate a broader operational range, along with the numerical simulations employed in these studies. This paper begins by examining the structure and operation of ejectors. It then compares and analyzes the latest advancements in research on ejector-based hydrogen recirculation systems with extended operating ranges and reviews the details of numerical simulations of ejectors, which are crucial for the development of innovative and efficient ejectors. This study provides key insights and recommendations for integrating hydrogen ejectors into the hydrogen cycle system of fuel cell engines. |
| first_indexed | 2025-03-19T23:16:46Z |
| format | Article |
| id | doaj.art-db2ee78d15c94199ae2dba397132676d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2025-03-19T23:16:46Z |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-db2ee78d15c94199ae2dba397132676d2024-10-15T12:55:28ZengMDPI AGEnergies1996-10732024-09-011719481510.3390/en17194815Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical SimulationsMasoud Arabbeiki0Mohsen Mansourkiaei1Domenico Ferrero2Massimo Santarelli3Department of Energy (DENERG), Politecnico di Torino, 10129 Turin, ItalyDepartment of Energy (DENERG), Politecnico di Torino, 10129 Turin, ItalyDepartment of Energy (DENERG), Politecnico di Torino, 10129 Turin, ItalyDepartment of Energy (DENERG), Politecnico di Torino, 10129 Turin, ItalyFuel cell systems often utilize a hydrogen recirculation system to redirect and transport surplus hydrogen back to the anode, which enhances fuel consumption and boosts the efficiency of the fuel cell. Hydrogen recirculation pumps and ejectors are the most investigated systems. Ejectors are gaining recognition as an essential device in fuel cell systems. However, their application in hydrogen recirculation systems is often limited by a narrow operational range. Therefore, it is advantageous to compile the present condition of the study on various ejector shapes as well as configurations that can accommodate a broader operational range, along with the numerical simulations employed in these studies. This paper begins by examining the structure and operation of ejectors. It then compares and analyzes the latest advancements in research on ejector-based hydrogen recirculation systems with extended operating ranges and reviews the details of numerical simulations of ejectors, which are crucial for the development of innovative and efficient ejectors. This study provides key insights and recommendations for integrating hydrogen ejectors into the hydrogen cycle system of fuel cell engines.https://www.mdpi.com/1996-1073/17/19/4815ejectorproton exchange membrane fuel cellhydrogen recirculationnumerical simulationsturbulence model |
| spellingShingle | Masoud Arabbeiki Mohsen Mansourkiaei Domenico Ferrero Massimo Santarelli Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations Energies ejector proton exchange membrane fuel cell hydrogen recirculation numerical simulations turbulence model |
| title | Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations |
| title_full | Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations |
| title_fullStr | Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations |
| title_full_unstemmed | Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations |
| title_short | Ejectors in Hydrogen Recirculation for PEMFC-Based Systems: A Comprehensive Review of Design, Operation, and Numerical Simulations |
| title_sort | ejectors in hydrogen recirculation for pemfc based systems a comprehensive review of design operation and numerical simulations |
| topic | ejector proton exchange membrane fuel cell hydrogen recirculation numerical simulations turbulence model |
| url | https://www.mdpi.com/1996-1073/17/19/4815 |
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