کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7707661 | 1497318 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A gas management strategy for anode recirculation in a proton exchange membrane fuel cell
ترجمه فارسی عنوان
استراتژی مدیریت گاز برای گردش سیال آنود در یک سلول سوختی غشایی تبادل پروتون
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کلمات کلیدی
سلول سوختی، تسریع انود، تمیز کردن، بن بست، تراکم جریان محلی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
The anode configuration and gas management strategy are two of factors that affect the energy efficiency of a proton exchange membrane fuel cell. In order to improve the hydrogen utilization, unused hydrogen can be recirculated to the inlet using a pump. However, impurities diffusing from the cathode to the anode may cause the dilution of hydrogen in the anode. As a result, a gas management strategy is required for the anode recirculation configuration. In this preliminary study, a novel configuration for anode recirculation and a gas management strategy are proposed and verified by experiments. Two valves are installed in the recirculation line. The anode is operated in four modes (dead-end, recirculation, compression, and purge), and the real-time local current density (LCD) is monitored for gas management purposes. The results show that the LCD distribution is uniform during the recirculation mode and nonuniform during the dead-end and compression modes. With this configuration and gas management strategy, the cycle duration is increased by a factor of 6.5.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 7, 15 February 2018, Pages 3803-3808
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 7, 15 February 2018, Pages 3803-3808
نویسندگان
Heng-Yi Lee, Hsiao-Chun Su, Yong-Song Chen,