کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6680699 | 1428075 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High temperature PEM fuel cell integrated with a cellular membrane methanol steam reformer: Experimental and modelling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, the methanol steam reforming catalyst was considered into the anodic compartment of a high temperature polymer electrolyte fuel cell (HT-PEMFC), where reforming and electrochemical, reactions occur simultaneously. To avoid the anode electro-catalyst poisoning by methanol, a Pd-Ag membrane, with a thickness of a few micrometres, was considered between the reforming catalyst and the membrane electrode assembly. A 3-dimensional non-isothermal simulator was developed in Fluent (Ansysâ¢) considering a packed bed membrane reactor cell (PBMR-C) combined with a HT-PEMFC in a single unit. The performance of the combined unit depends on the permeability, selectivity and stability of Pd-Ag membrane at 473â¯K. Therefore, a self-supported Pd-Ag membrane with a thickness of 4â¯Î¼m, was produced with no defects by magnetron sputtering. The membrane showed a H2/N2 molar selectivity of ca. 5800 and permeability of 2.94â¯Ãâ¯10-6â¯mol·m·s-1·m-2·barâ0.8 at 473â¯K. The novel PBMR-C/HT-PEMFC after proper validation was analysed by simulation, showing high performance, similar to the one obtained with a HT-PEMFC fed with hydrogen and allowed efficient heat integration between electrochemical and MSR reaction. The PBMR-C/HT-PEMFC also demonstrated to be very compact. The advantageous and limitations of the combined PBMR-C/HT-PEMFC unit are discussed based on the simulated results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 215, 1 April 2018, Pages 659-669
Journal: Applied Energy - Volume 215, 1 April 2018, Pages 659-669
نویسندگان
P. Ribeirinha, M. Abdollahzadeh, A. Pereira, F. Relvas, M. Boaventura, A. Mendes,