Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples
Based on the COMSOL simulation software (v.6.1), this paper systematically investigates the influence law of runner length on the velocity and pressure distribution of cathode and anode gas runners in proton exchange membrane fuel cells (PEMFCs), and experimentally verifies the measurement effect of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/5/535 |
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| author | Huijin Guo Zhihui Liu Xingyu Li Xingshu Wang Maopeng Zhang Shiqi Zhang Zixi Wang Wanyu Ding |
| author_facet | Huijin Guo Zhihui Liu Xingyu Li Xingshu Wang Maopeng Zhang Shiqi Zhang Zixi Wang Wanyu Ding |
| author_sort | Huijin Guo |
| collection | DOAJ |
| description | Based on the COMSOL simulation software (v.6.1), this paper systematically investigates the influence law of runner length on the velocity and pressure distribution of cathode and anode gas runners in proton exchange membrane fuel cells (PEMFCs), and experimentally verifies the measurement effect of thin-film thermocouples on the operating temperature of PEMFCs. The simulation results show that the maximum pressure of the cathode and anode increases nonlinearly with the increase in the runner length, while the velocity distribution remains stable; the shortening of the runners significantly reduces the friction loss along the flow path and optimizes the matching of the permeability of the porous medium. In addition, the NiCr/NiSi thin-film thermocouple prepared by magnetron sputtering exhibits high accuracy (Seebeck coefficient of 41.56 μV/°C) in static calibration and successfully captures the dynamic response characteristics of temperature in PEMFC operation. This study provides a theoretical basis and experimental support for the optimization of fuel cell flow channel design and temperature monitoring technology. |
| format | Article |
| id | doaj-art-3e5b26e14fa342e5a87caa4c7da2cd0f |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-3e5b26e14fa342e5a87caa4c7da2cd0f2025-08-20T03:14:29ZengMDPI AGMicromachines2072-666X2025-04-0116553510.3390/mi16050535Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film ThermocouplesHuijin Guo0Zhihui Liu1Xingyu Li2Xingshu Wang3Maopeng Zhang4Shiqi Zhang5Zixi Wang6Wanyu Ding7School of Automotive Studies, Tongji University, Shanghai 201804, ChinaState Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084, ChinaSchool of Science, Tianjin Chengjian University, Tianjin 300384, ChinaSchool of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, ChinaCollege of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, ChinaState Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084, ChinaCollege of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, ChinaBased on the COMSOL simulation software (v.6.1), this paper systematically investigates the influence law of runner length on the velocity and pressure distribution of cathode and anode gas runners in proton exchange membrane fuel cells (PEMFCs), and experimentally verifies the measurement effect of thin-film thermocouples on the operating temperature of PEMFCs. The simulation results show that the maximum pressure of the cathode and anode increases nonlinearly with the increase in the runner length, while the velocity distribution remains stable; the shortening of the runners significantly reduces the friction loss along the flow path and optimizes the matching of the permeability of the porous medium. In addition, the NiCr/NiSi thin-film thermocouple prepared by magnetron sputtering exhibits high accuracy (Seebeck coefficient of 41.56 μV/°C) in static calibration and successfully captures the dynamic response characteristics of temperature in PEMFC operation. This study provides a theoretical basis and experimental support for the optimization of fuel cell flow channel design and temperature monitoring technology.https://www.mdpi.com/2072-666X/16/5/535proton exchange membrane fuel cellflow lengthpressure distributionthin-film thermocoupleoperating temperature |
| spellingShingle | Huijin Guo Zhihui Liu Xingyu Li Xingshu Wang Maopeng Zhang Shiqi Zhang Zixi Wang Wanyu Ding Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples Micromachines proton exchange membrane fuel cell flow length pressure distribution thin-film thermocouple operating temperature |
| title | Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples |
| title_full | Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples |
| title_fullStr | Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples |
| title_full_unstemmed | Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples |
| title_short | Effect of Flow Length on Pressure and Measurement of PEMFC Temperature by Using Thin-Film Thermocouples |
| title_sort | effect of flow length on pressure and measurement of pemfc temperature by using thin film thermocouples |
| topic | proton exchange membrane fuel cell flow length pressure distribution thin-film thermocouple operating temperature |
| url | https://www.mdpi.com/2072-666X/16/5/535 |
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