دانلود مقاله ISI انگلیسی شماره 55159
عنوان فارسی مقاله

توسعه یک الکترولیت پلیمری پشته پیل سوختی غشاء برای یک وسیله نقلیه در زیر آب

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
55159 2016 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Development of a polymer electrolyte membrane fuel cell stack for an underwater vehicle
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Journal of Power Sources, Volume 304, 1 February 2016, Pages 244–254

کلمات کلیدی
پیل سوختی؛ غشاء الکترولیت پلیمری؛ طراحی پشته ؛ خودرو زیر آب - نیروی محرکه پیل سوختی
پیش نمایش مقاله
پیش نمایش مقاله توسعه یک الکترولیت پلیمری پشته پیل سوختی غشاء برای یک وسیله نقلیه در زیر آب

چکیده انگلیسی

This paper presents a polymer electrolyte membrane (PEM) fuel cell stack that is specifically designed for the propulsion of an underwater vehicle (UV). The stack for a UV must be continuously operated in a closed space using hydrogen and pure oxygen; it should meet various performance requirements such as high hydrogen and oxygen utilizations, low hydrogen and oxygen consumptions, a high ramp-up rate, and a long lifetime. To this end, a cascade-type stack design is employed and the cell components, including the membrane electrode assembly and bipolar plate, are evaluated using long-term performance tests. The feasibility of a fabricated 4-kW-class stack was confirmed through various performance evaluations. The proposed cascade-type stack exhibited a high efficiency of 65% and high hydrogen and oxygen utilizations of 99.89% and 99.68%, respectively, resulting in significantly lesser purge-gas emissions to the outside of the stack. The load-following test was successfully performed at a high ramp-up rate. The lifetime of the stack was confirmed by a 3500-h performance test, from which the degradation rate of the cell voltage was obtained. The advantages of the cascade-type stack were also confirmed by comparing its performance with that of a single-stage stack operating in dead-end mode.

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