scholarly journals Pushing the limits for enzyme-based membrane-less hydrogen fuel cells – achieving useful power and stability

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3649-3656 ◽  
Author(s):  
Lang Xu ◽  
Fraser A. Armstrong
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Hydrogen Fuel Cells ◽  
Hydrogen Fuel ◽  
Useful Power

The festive Hydrogen House, powered by a hydrogen–air mixture using an enzyme fuel cell.

scholarly journals Thermodynamic Effects of Nanotechnological Augmentation of Hydrogen Fuel Cells

2017 ◽  
Vol 4 ◽  
pp. 76-86 ◽  
Author(s):  
Reece Cohen Woodley ◽  
Kane Yang ◽  
Geoffrey Bruce Tanner ◽  
Dennis Tran
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Cell System ◽  
Thermodynamic Efficiency ◽  
Hydrogen Fuel Cells ◽  
Hydrogen Fuel ◽  
Fuel Cell System ◽  
Efficient System ◽  
Structured Catalysts ◽  
Thermodynamic Effects

This meta-study focuses on the research regarding the use of nanotechnology in traditional fuel cells in order to increase thermodynamic efficiency through the exploitation of various thermodynamic systems and theories. The use of nanofilters and nano-structured catalysts improve the fuel cell system through the means of filtering molecules from protons and electrons significantly increases the possible output of the fuel cell and the use of nano-platinum catalysts to lower the activation energy of the fuel cell chemical reaction a notable amount resulting in a more efficient system and smaller entropy in comparison to the use of macro sized catalysts.

Hydrogen, Fuel Cells and Fuel Cell Vehicles

2014 ◽  
pp. 260-295 ◽  
Author(s):  
Ronald M. Dell ◽  
Patrick T. Moseley ◽  
David A.J. Rand
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Hydrogen Fuel Cells ◽  
Fuel Cell Vehicles ◽  
Hydrogen Fuel

Challenges in Hydrogen Fuel Cell Vehicles Commercialization

2014 ◽  
Vol 1006-1007 ◽  
pp. 1199-1202
Author(s):  
Yuan Ren ◽  
Zhi Dan Zhong ◽  
Zhi Wen Zhang
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Paper Analysis ◽  
Fuel Cell Vehicle ◽  
Hydrogen Fuel Cells ◽  
Fuel Cell Vehicles ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Hydrogen Fuel Cell Vehicles ◽  
The Cost

Current development in fuel cells and hydrogen fuel cells vehicles are first described in the paper, and then the paper gives up-to-date review of hydrogen fuel cell vehicle technological status and hydrogen infrastructure. Then the paper analysis barriers in hydrogen fuel cell vehicle commercialization and the cost reduction challenges especially in the material for catalyst and operational condition. Then in the end this paper gives the hydrogen fuel cell vehicles prospects and outlook.

scholarly journals Mathematical Modeling of an Electrotechnical Complex of a Power Unit Based on Hydrogen Fuel Cells for Unmanned Aerial Vehicles

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6974
Author(s):  
Ivan V. Vasyukov ◽  
Alexander V. Pavlenko ◽  
Vladimir S. Puzin ◽  
Denis V. Batishchev ◽  
Irina A. Bolshenko
Keyword(s):  
Mathematical Model ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Power Plant ◽  
Power Supply ◽  
Least Squares Method ◽  
Specific Power ◽  
Hydrogen Fuel Cells ◽  
Hydrogen Fuel ◽  
Step Down

The issues of mathematical and numerical simulation of an electrical complex of a power plant based on hydrogen fuel cells with a voltage step-down converter were considered. The work was aimed at developing a mathematical model that would provide for determining the most loaded operation mode of the complex components. The existing mathematical models do not consider the effect of such processes as the charge and discharge of the battery backup power supply on the power plant components. They often do not consider the nonlinearity of the fuel cell output voltage. This paper offers a mathematical model of an electrical complex based on the circuit analysis. The model combines a well-known physical model of a fuel cell based on a potential difference and a model of a step-down converter with a battery backup power supply developed by the authors. A method of configuring a fuel cell model based on the experimental current–voltage characteristic by the least-squares method has been proposed. The developed model provides for determining currents and voltages in all components of the power plant both in the nominal operating mode and in the mode of limiting the power consumed from the fuel cell when the battery backup power supply is being charged. The correctness of the calculated ratios and the mathematical model has been confirmed experimentally. Using the proposed model, a 1300 W power plant with a specific power of 529.3 W∙h/kg was developed and tested.

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