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Showing 1 to 14 of 14 for “"Proton exchange membrane (PEM) fuel cell"”.
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Implementation of a digital signal processing (DSP) boost inverter for fuel cell energy generation
… in the design of a low power inverter used in Fuel Cell energy source. The fuel cell used in this research is a Heliocentris “Constructor”, a 50W proton exchange membrane (PEM) fuel cell. Fuel Cells are becoming popular and are likely to be used in applications such as a backup power, portable …
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Electrochemical impedance spectroscopy of proton exchange membrane fuel cell stacks
… Spectroscopy (EIS) is applied to a small, four cell Proton Exchange Membrane (PEM) fuel cell stack to examine the stack response as the load current changes. The measured stack response is compared to a simulated response generated by a stack model that has been developed using MATLAB. The …
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Dynamic modeling and control of a proton exchange membrane fuel cell as a distributed generator
… concentrated on the modeling and control of a Proton Exchange Membrane (PEM) fuel cell in a deregulated electric power system. The PEM fuel cell is a Multiple Input Multiple Output (MIMO) system with various dynamic states. In most previous model studies, the stack temperature of a fuel cell …
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Experimental Investigation of the Effect of Composition on the Performance and Characteristics of PEM Fuel Cell Catalyst Layers
The catalyst layer of a proton exchange membrane (PEM) fuel cell is a mixture of polymer, carbon, and platinum. The characteristics of the catalyst layer play a critical role in determining the performance of the PEM fuel cell. This research investigates the role of catalyst layer composition using …
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Investigation of the Effect of Catalyst Layer Composition on the Performance of PEM Fuel Cells
The catalyst layer of a proton exchange membrane (PEM) fuel cell is a porous mixture of polymer, carbon, and platinum. The characteristics of the catalyst layer play a critical role in determining the performance of the PEM fuel cell. In this research, sample membrane electrode assemblies (MEAs) …
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A Microstructural Model for a Proton Exchange Membrane Fuel Cell Catalyst Layer
… a microstructural model of a catalyst layer in a proton exchange membrane (PEM) fuel cell. In this study, a stochastic model that uses individual carbon, platinum and ionomer particles as building blocks to construct a catalyst layer geometry, resulting in optimal porosity and material mass ratios …
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Feasibility study of long-life micro fuel cell power supply for sensor networks for space and terrestrial applications
… considers the feasibility of a miniature Proton Exchange Membrane (PEM) fuel cell system coupled with battery to supply power for long life missions. The focus of this research is to prove the feasibility of long-life, self-contained power-supplies using miniature fuel cells for low-power …
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Renewable Electricity Generation via Solar-Powered Methanol Reforming: Hybrid Proton Exchange Membrane Fuel Cell Systems Based on Novel Non-Concentrating, Intermediate-Temperature Solar Collectors
… energy utilization with high efficiencies and excellent cost-effectiveness. The goal of this work was to design a non-concentrating collector capable of reaching temperatures above 250 °C, use this collector to power methanol steam reforming, and operate a proton exchange membrane (PEM) fuel cell …
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Synthesis and Characterization of Multiblock Copolymer Proton Exchange Membranes for High Temperature Fuel Cell Applications
The potential success of a proton exchange membrane (PEM) fuel cell as an alternative energy source depends highly upon the development of high performance PEMs. Typically, state-of-the-art PEMs have been perfluorinated sulfonated ionomer membranes such as Nafion® by DuPont. Although these …
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Influence of electrode stress on proton exchange membrane fuel cell performance : experimental characterization and power optimization
… stress applied to the electrode area of a Proton Exchange Membrane (PEM) fuel cell is known to significantly affect power output. In practice, electrode stress arises during operation due to the clamping force that is necessary for sealing the cell. In traditional fuel cell designs, the …
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Modelling, simulation and performance evaluation: PEM fuel cells for high altitude UAS
A fuel cell is a device that converts energy in the fuel and reactant into electrical DC power. Fuel cell powered aircraft are generally characterised by a low power to weight ratio (W/kg). The propulsion system of an unmanned aircraft needs a large range of power and fast response to fulfil the …
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Computational fluid dynamics modelling of PEM fuel cells to investigate transport limitations.
… energy sources to reduce polluting emissions. Proton Exchange Membrane (PEM) fuel cell has shown and demonstrated that potential to be a suitable alternative power source because of its simplicity of design, load following capabilities, efficiency, feasibility and quick start-up. Although …
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Improved System Models for Building-Integrated Hybrid Renewable Energy Systems with Advanced Storage: A Combined Experimental and Simulation Approach
… of alkaline electrolyser, gas storage and proton exchange membrane (PEM) fuel cell, and a VRFB. In addition, the application of building-integrated HRES at customer level to increase the self-consumption of the onsite generated electricity and to lower the grid interaction of the building …