In the presented research, heat transfer of a mobile electrolyte alkaline fuel cell (AFC) (which the electrolyte has cooling role of system) has been considered. Proper control volumes of system with specific qualification have been chosen. Consequently, heat and mass transfer in control volumes have been assessed. Considerations on them and contributed models lead to approve a double tube heat...

The main aim of this paper is development of renewable energy sources in distributed generation (DG) systems. A fuel cell (FC) is considered as a promising power generating sources for DG system. In this paper, a mathematical analysis of Solid Oxide Fuel Cell is carried out for extensive MATLAB/Simulink modeling. For the transient analysis of SOFC distributed generation system, a AC/DC load is ...

A novel hybrid device exploiting waste heat in solid oxide fuel cells is designed. The hybrid device includes a solid oxide fuel cell and a thermophotovoltaic cell. The performances of the hybrid device and the single SOFC are compared. The optimally operating regions of the hybrid device are determined. The advantages of the hybrid device over other SOFC-based hybrid systems are shown. a r t i...

Carbon-supported Ni–Mo composites catalyze alkaline hydrogen evolution and oxidation with negligible onset overpotential. Electrolyzers using cathodes perform comparably to Pt–Ru cathodes, but oxidative instability limits fuel cell operation.

The present work proposes and demonstrates a methodology to capture the effect of operating conditions on ionic conductivity of membranes immersed in alkaline media. Based on reported experimental results for an anion exchange membrane (A-201 by Tokuyama) and a cation exchange membrane (Nafion 211), two novel expressions are developed for the ionic conductivity by incorporating the effects of s...

The well-known compatibility of the SOFC with hydrocarbon fuels makes the solid oxide fuel cell a strong contender for transportation applications. Gasoline and diesel will continue to be the dominant fuels for decades to come. The 500 million automobiles, the existing fuel distribution system and the economic power of oil and automobile companies combined form a strong inertia in favour of liq...

Abstract Green hydrogen produced from wind, solar or hydro power is a suitable electricity storage medium. Hydrogen typically employed as mid- to long-term energy storage, whereas batteries cover short-term storage. can be by any available electrolyser technology [alkaline electrolysis cell (AEC), polymer electrolyte membrane (PEM), anion exchange (AEM), solid oxide (SOEC)] if the fed renewable...

Anode-supported micro-tubular solid oxide fuel cell (SOFC) offers many advantages over the electrolyte and cathode-supported confgurations in terms of simplicity, reliability, and efciency. In such design, the anode substrates should possess a highly porous structure, provide active sites reaction as well as serving good mechanical strength. This structure is desired to ...

This paper reports on a single alkaline exchange membrane direct formate fuel cell (AEM DFFC) consisting of a carbon-supported palladium catalyst at the anode, a quaternized polysulfone membrane, and a non-precious Fe–Co catalyst at the cathode. It is demonstrated that the AEM DFFC yields a peak power density of 130 mW cm 2 with 5 M potassium formate (HCOOK) at 80 C. It is further shown that wi...