Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation
To increase the efficiency of a fuel processor and HT-PEMFC (high temperature-proton exchange membrane fuel cell) combined system, it is essential to improve the efficiency of the fuel processor. In this research, the fuel processor was simulated by the Aspen Hysys<sup>®</sup> simulator,...
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MDPI AG
2023-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/16/9292 |
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| author | Sanghyoun Park Sangyong Lee |
| author_facet | Sanghyoun Park Sangyong Lee |
| author_sort | Sanghyoun Park |
| collection | DOAJ |
| description | To increase the efficiency of a fuel processor and HT-PEMFC (high temperature-proton exchange membrane fuel cell) combined system, it is essential to improve the efficiency of the fuel processor. In this research, the fuel processor was simulated by the Aspen Hysys<sup>®</sup> simulator, and the effect of the various operating conditions on the total efficiency was investigated. The thermal efficiency of the fuel processor increased as the temperature and S/C (steam-to-carbon) ratio increased, and the efficiency was higher at an S/C ratio of 3 than at an S/C of 4 with a reformer temperature of 700 °C and higher. Under the selected operating conditions of the fuel processor, the recycling of unreacted hydrogen from the anode off-gas (AOG) of the HT-PEMFC improved the overall efficiency of the combined fuel processor and HT-PEMFC by a factor of 1.28. The operating conditions where the AOG supplied more heat than was required for fuel processor operation were excluded. The high-efficiency operating conditions of the fuel cell system were proposed with the target of 5 kW of output as the capacity of the household HT-PEMFC. |
| first_indexed | 2024-03-11T00:09:39Z |
| format | Article |
| id | doaj.art-7fbb7521580c49da9992ff08ea335495 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T00:09:39Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-7fbb7521580c49da9992ff08ea3354952023-11-19T00:07:27ZengMDPI AGApplied Sciences2076-34172023-08-011316929210.3390/app13169292Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen CirculationSanghyoun Park0Sangyong Lee1Mechanical Robotics and Energy Department, Dongguk University, Seoul 04620, Republic of KoreaMechanical Robotics and Energy Department, Dongguk University, Seoul 04620, Republic of KoreaTo increase the efficiency of a fuel processor and HT-PEMFC (high temperature-proton exchange membrane fuel cell) combined system, it is essential to improve the efficiency of the fuel processor. In this research, the fuel processor was simulated by the Aspen Hysys<sup>®</sup> simulator, and the effect of the various operating conditions on the total efficiency was investigated. The thermal efficiency of the fuel processor increased as the temperature and S/C (steam-to-carbon) ratio increased, and the efficiency was higher at an S/C ratio of 3 than at an S/C of 4 with a reformer temperature of 700 °C and higher. Under the selected operating conditions of the fuel processor, the recycling of unreacted hydrogen from the anode off-gas (AOG) of the HT-PEMFC improved the overall efficiency of the combined fuel processor and HT-PEMFC by a factor of 1.28. The operating conditions where the AOG supplied more heat than was required for fuel processor operation were excluded. The high-efficiency operating conditions of the fuel cell system were proposed with the target of 5 kW of output as the capacity of the household HT-PEMFC.https://www.mdpi.com/2076-3417/13/16/9292fuel processorsteam reformerresidential HT-PEMFCfuel cellwater–gas shift reactor |
| spellingShingle | Sanghyoun Park Sangyong Lee Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation Applied Sciences fuel processor steam reformer residential HT-PEMFC fuel cell water–gas shift reactor |
| title | Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation |
| title_full | Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation |
| title_fullStr | Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation |
| title_full_unstemmed | Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation |
| title_short | Theoretical Analysis for Improving the Efficiency of HT-PEMFC through Unreacted Hydrogen Circulation |
| title_sort | theoretical analysis for improving the efficiency of ht pemfc through unreacted hydrogen circulation |
| topic | fuel processor steam reformer residential HT-PEMFC fuel cell water–gas shift reactor |
| url | https://www.mdpi.com/2076-3417/13/16/9292 |
| work_keys_str_mv | AT sanghyounpark theoreticalanalysisforimprovingtheefficiencyofhtpemfcthroughunreactedhydrogencirculation AT sangyonglee theoreticalanalysisforimprovingtheefficiencyofhtpemfcthroughunreactedhydrogencirculation |