دانلود مقاله ISI انگلیسی شماره 55176
عنوان فارسی مقاله

مدل زمان واقعی توزیع شده از تجزیه در یک پیل سوختی اکسید جامد، بخش اول: خصوصیات مدل

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
55176 2016 7 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
A distributed real-time model of degradation in a solid oxide fuel cell, part I: Model characterization
منبع

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

Journal : Journal of Power Sources, Volume 311, 15 April 2016, Pages 175–181

کلمات کلیدی
SOFC؛ مدل زمان واقعی - تجزیه سلولی
پیش نمایش مقاله
پیش نمایش مقاله مدل زمان واقعی توزیع شده از تجزیه در یک پیل سوختی اکسید جامد، بخش اول: خصوصیات مدل

چکیده انگلیسی

Despite the high efficiency and flexibility of fuel cells, which make them an attractive technology for the future energy generation, their economic competitiveness is still penalized by their short lifetime, due to multiple degradation phenomena. As a matter of fact, electrochemical performance of solid oxide fuel cells (SOFCs) is reduced because of different degradation mechanisms, which depend on operating conditions, fuel and air contaminants, impurities in materials, and others. In this work, a real-time, one dimensional (1D) model of a SOFC is used to simulate the effects of voltage degradation in the cell. Different mechanisms are summarized in a simple empirical expression that relates degradation rate to cell operating parameters (current density, fuel utilization and temperature), on a localized basis. Profile distributions of different variables during cell degradation are analyzed. In particular, the effect of degradation on current density, temperature, and total resistance of the cell are investigated. An analysis of localized degradation effects shows how different parts of the cell degrade at a different time rate, and how the various profiles are redistributed along the cell as consequence of different degradation rates.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.