نتایج جستجو برای: fuel cells

تعداد نتایج: 1441901  

Journal: :Chemical Society reviews 2009
Feng Zhao Robert C T Slade John R Varcoe

Microbial fuel cells (MFCs) represent a clean and renewable energy resource. To date, power generation in MFCs is severely limited. In order to improve performance, a wide range of techniques have been utilised for a fundamental scientific understanding of the components and processes and also to investigate MFC performance bottlenecks. In this tutorial review, we discuss the electrochemical/el...

2013
A. G. Capodaglio D. Molognoni E. Dallago A. Liberale R. Cella P. Longoni L. Pantaleoni

Application of microbial fuel cells (MFCs) to wastewater treatment for direct recovery of electric energy appears to provide a potentially attractive alternative to traditional treatment processes, in an optic of costs reduction, and tapping of sustainable energy sources that characterizes current trends in technology. This work focuses on a laboratory-scale, air-cathode, and single-chamber MFC...

One of the most important Fuel cells (FCs) is Proton Exchange Membrane Fuel Cells (PEMFCs). The outputvoltage of this FC depends on current loads. This paper tries to introduce, implement and control the voltage ofPEMFC, during load variations. The output voltage of fuel cell should be constant during load variation. Toachieve this goal, a controller should be designed. Here, the Lead-Lag contr...

Conversion of fossil fuels to electrical power is the most popular method of electrical power generation. Due to the depletion of fossil fuels and the increase in air pollution, the necessity of using high efficiency power generation systems is increasing. High temperature fuel cells, such as solid oxide fuel cells (SOFC) and molten carbonate fuel cells (MCFC), have high efficiency. According t...

Journal: :iranian journal of hydrogen and fuel cell 0
ebrahim alizadeh malek ashtar university of technology, fuel cell technology research laboratory majid khorshidian malek ashtar university of technology, fuel cell technology research laboratory seyed hossein masrori saadat malek ashtar university of technology, fuel cell technology research laboratory seyed majid rahgoshay malek ashtar university of technology, fuel cell technology research laboratory mazaher rahimi-esbo malek ashtar university of technology, fuel cell technology research laboratory

proton exchange membrane fuel cells (pemfcs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. nevertheless, the accumulation of the water in the anode and cathode channels might cause a local fuel starvation degrading the performance and durability of pemfcs. in this study, a brand new design for a polymer electrolyte membrane...

Journal: :Platinum Metals Review 2009

Journal: :Biosensors & bioelectronics 2011
Shaoan Cheng Defeng Xing Bruce E Logan

Practical applications of microbial fuel cells (MFCs) for wastewater treatment will require operation of these systems over a wide range of wastewater temperatures. MFCs at room or higher temperatures (20-35°C) are relatively well studied compared those at lower temperatures. MFC performance was examined here over a temperature range of 4-30°C in terms of startup time needed for reproducible po...

Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. Nevertheless, the accumulation of the water in the anode and cathode channels might cause a local fuel starvation degrading the performance and durability of PEMFCs. In this study, a brand new design for a polymer electrolyte membrane...

Journal: :Environmental science & technology 2009
Kellyn Betts

The technology is based on microbial fuel cells (MFCs), which use microorganisms as catalysts to convert chemical energy to electrical energy. The paper’s authors, including Bruce Logan of Pennsylvania State University and Xiaoxin Cao of Tsinghua University (China), are among the small group of researchers worldwide trying to improve MFCs—or bioelectrochemical systems, as they are beginning to ...

Journal: :Environmental science & technology 2006
Bruce E Logan Bert Hamelers René Rozendal Uwe Schröder Jürg Keller Stefano Freguia Peter Aelterman Willy Verstraete Korneel Rabaey

Microbial fuel cell (MFC) research is a rapidly evolving field that lacks established terminology and methods for the analysis of system performance. This makes it difficult for researchers to compare devices on an equivalent basis. The construction and analysis of MFCs requires knowledge of different scientific and engineering fields, ranging from microbiology and electrochemistry to materials...

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