A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent. Fuel cells are different from batteries in that they require a continuous source of fuel and oxygen or air to sustain the chemical reaction, whereas in a battery the chemicals present in the battery react with each other to generate an electromotive force (emf). Fuel cells can produce electricity continuously for as long as these inputs are supplied.
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Fuel cells consist of an anode, a cathode, and an electrolyte that allows positively charged hydrogen ions to move between the two sides of the cell. In doing so, these ions convert chemical energy into electricity. And the only bi-product is water.
Last week I was offered an up-close look
By Lyn Corum
Microgrids are becoming the transformative technology in today’s energy industry, and are putting many utilities on the defensive. A few utilities want to adopt or coopt the technology, depending on one’s perceptions, creating tensions among utility and industry stakeholders. The latter believe microgrid resources can best be delivered by private
By Don Talend
Given that energy sustainability and energy economics are top-of-mind among business leaders, politicians, and the public these days, hydrogen fuel cells may be viewed as a savior technology. If that statement seems hyperbolic, there is plenty of statistical evidence to support the growth of fuel cell use for both stationary
[Gothenburg, Sweden, September 12, 2016.] The Nordic leading fuel cell company PowerCell Sweden AB (publ) has received an order and signed a Memorandum of Understanding with a Chinese company focusing on green energy solutions, specialized in fuel cell applications for commercial light-duty trucks. The two companies see potential of cooperation
By Lyn Corum
Digital technology has created a revolution in building controls, relegating old pneumatic instruments to the antique shops along with typewriters and calculating machines. Now, a control system can allow a technician to turn fans on or off, and/or modify temperatures or lighting in a structure from a tablet or laptop
By Ed Ritchie
In Part 4 of this nearly-concluded, five-part series, author Ed Ritchie explains funding for high-efficiency combined heat and power (CHP) systems through energy service contracts and government grants. Fuel cell applications in CHP systems offer the potential return of high efficiency ratings, present peak shaving applications, and reduce demands on
By Lyn Corum
Microgrids are becoming the transformative technology in today’s energy industry, and are putting many utilities on the defensive. A few utilities want to adopt or coopt the technology, depending on one’s perceptions, creating tensions among utility and industry stakeholders. The latter believe microgrid resources can best be delivered by private companies.
First, a definition:
RICHLAND, Wash. – Materials scientists have created a new material that performs like a cell membrane found in nature. Such a material has long been sought for applications as varied as water purification and drug delivery.
This simulated cross-section shows how the lipid-like peptoids interact to form