نتایج جستجو برای: fuel cells

تعداد نتایج: 1441901  

2015
Jon Chouler Mirella Di Lorenzo Pedro Estrela

The provision of safe water and adequate sanitation in developing countries is a must. A range of chemical and biological methods are currently used to ensure the safety of water for consumption. These methods however suffer from high costs, complexity of use and inability to function onsite and in real time. The microbial fuel cell (MFC) technology has great potential for the rapid and simple ...

2011
Ahmad Saudi Samosir Tole Sutikno Abdul Halim Mohd Yatim

Fuel cells are new alternative energy resource that has a great promise for distributed generation and electric vehicle application. However, fuel cells have a slow response due to their slow internal electromechanical and thermodynamic response. To optimize the fuel cell system performance, a fuel cell DC-DC converter with an appropriate controller which can regulate the power flow and automat...

Journal: :Nature 2016
You Zhou Xiaofei Guan Hua Zhou Koushik Ramadoss Suhare Adam Huajun Liu Sungsik Lee Jian Shi Masaru Tsuchiya Dillon D Fong Shriram Ramanathan

Fuel cells convert chemical energy directly into electrical energy with high efficiencies and environmental benefits, as compared with traditional heat engines. Yttria-stabilized zirconia is perhaps the material with the most potential as an electrolyte in solid oxide fuel cells (SOFCs), owing to its stability and near-unity ionic transference number. Although there exist materials with superio...

2007
Shane Street Joseph Thrasher John Wiest Ramana Reddy Martin Bakker Tonya Klein Heath Turner Gary Mankey Mark Weaver Kristin Bennett

Progress Report and Future Directions The fuel cell research cluster began with the DOE EPSCoR implementation grant “Fuel Cells: A Mobile Energy Source for the 21 Century” in July of 2001. The focus of this research was developing new and improved materials for hydrogen production and PEM fuel cells. Building on the major successes of this project, we proposed and were granted a renewed impleme...

2009
Jay Benziger

F uel cells have tantalized engineers for more than a century as efficient devices to directly convert chemical energy to electrical energy. However, fuel cell use has been limited to niche applications, like space vehicles and emergency backup power systems, due to their expensive components and specialized fuel requirements. During the past two decades polymer electrolyte membrane (PEM) fuel ...

Mirmohammadi, Ommi,

The purpose of present paper is simulation a direct injection stratified charge natural gas engine. The KIVA-3V code was used for gaseous fuel injection simulation. Compression and expansion stroke of engine cycle is simulated using KIVA-3V code. In cylinder fuel equivalence ratio distribution criterion is used for studying mesh independency. The results show that 550000 cells number is suff...

Journal: :Mobility and Vehicle Mechanics 2020

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