Energy & Green Tech
The hydrogen fuel that launches NASA rockets into space and provides electrical power via fuel cells produces only one waste product: water so pure the astronaut crew can drink it.
Oct 2, 2019
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Energy & Green Tech
Hydrogen-powered cars are seen as a potential solution to the pollution caused by gasoline and diesel engines, but the mass roll-out of fuel cell electric vehicles (FCEVs) hasn't yet materialized. As noted in a report by ...
Oct 1, 2019
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Energy & Green Tech
France is joining the hydrogen train revolution, the head of state rail operator SNCF said Thursday, announcing an order for 15 emissions-free regional trains to replace polluting diesel models.
Aug 29, 2019
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Energy & Green Tech
Soon we will be able to replace fossil fuels with a carbon-neutral product created from solar energy, carbon dioxide and water. Researchers at Uppsala University have successfully produced microorganisms that can efficiently ...
Jul 26, 2019
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Automotive
Four major automakers on Thursday announced they had reached a deal with California to produce more fuel-efficient cars for the US market, an end run around the Trump administration which is seeking to freeze mileage standards.
Jul 25, 2019
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Energy & Green Tech
What's not to like about this concept: high-efficiency solar cells gifting electric cars with mileage.
Engineering
In the future, small paper and plastic devices will be able to connect to the internet for a short duration, providing information on everything from healthcare to consumer products, before they are thrown away. Researchers ...
Jun 4, 2019
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Energy & Green Tech
Mitsubishi Hitachi Power Systems (MHPS) announced an ambitious energy storage project to develop what it claims will be the world's largest energy storage project of its kind, in Utah. Renewable hydrogen is at the core.
Automotive
German giant Mercedes-Benz said Monday it wants to stop selling traditional combustion engine cars by 2039 and plans for its new vehicles sold worldwide by that time to be carbon-neutral.
May 13, 2019
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Energy & Green Tech
Advancements in zero-emission fuel cells could make the technology cheap enough to replace traditional gasoline engines in vehicles, according to researchers at the University of Waterloo.
May 8, 2019
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A fuel cell is an electrochemical conversion device. It produces electricity from fuel (on the anode side) and an oxidant (on the cathode side), which react in the presence of an electrolyte. The reactants flow into the cell, and the reaction products flow out of it, while the electrolyte remains within it. Fuel cells can operate virtually continuously as long as the necessary flows are maintained.
Fuel cells are different from electrochemical cell batteries in that they consume reactant from an external source, which must be replenished – a thermodynamically open system. By contrast, batteries store electrical energy chemically and hence represent a thermodynamically closed system.
Many combinations of fuels and oxidants are possible. A hydrogen fuel cell uses hydrogen as its fuel and oxygen (usually from air) as its oxidant. Other fuels include hydrocarbons and alcohols. Other oxidants include chlorine and chlorine dioxide.
The principle of the fuel cell had been demonstrated by Sir William Grove in 1839, and other investigators had experimented with various forms of fuel cell. The first practical fuel cell was developed by Francis Thomas Bacon in 1959.
This text uses material from Wikipedia, licensed under CC BY-SA
