Performance of PEM Liquid-Feed Direct Methanol - Air Fuel Cells
نویسندگان
چکیده
منابع مشابه
Liquid methanol concentration sensors for direct methanol fuel cells
Liquid-fed direct methanol fuel cells (DMFCs) are one of the most promising candidates for portable power electronics and automotive pplications due to their potentially high-energy density, simple storage, and distribution of the fuel. The concentration of methanol in the fuel irculation loop of a DMFC system is an important operating parameter, because it determines the electrical performance...
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U.S. PATENT DOCUMENTS 4,729,931 A * 311988 Grimble ...................... 429117 5,047,299 A * 911991 Schockling .................. 429120 5,164,060 A * 1111992 Eisman et al. ................ 429112 5,169,730 A * 1211992 Reichner et al. .............. 429120 5,527,631 A * 611996 Singh et al. .................. 429120 5,561,000 A 1011996 Dirven et al. 5,582,632 A 1211996 Nohr et al. 5,593,721 A ...
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It is important to have accurate, reliable, and convenient techniques for determining the methanol crossover rate through the polymer electrolyte membranes of fuel cells. In this work, various electrochemical techniques, namely; cyclic voltammetry, chronoamperometry and potentiometry, have been used to measure the methanol crossover rates using Nafion 117 membrane. The purpose of using differen...
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A three dimensional, compressible, steady, one phase flow of reactant-product mixture in the air side electrode of proton exchange membrane fuel cell (PEMFC) is numerically studied in this paper. The mixture is composed of three species: oxygen, nitrogen and water vapor. The performance of the cell is enhanced by partial blockage of the flow field channels. Various types of these blocks also ca...
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ژورنال
عنوان ژورنال: ECS Proceedings Volumes
سال: 1995
ISSN: 0161-6374,2576-1579
DOI: 10.1149/199523.0261pv