Discover a new file each month, exclusively for our subscribers, in various areas of renewable energies.
This month: Fuel Cells Part 1!
Next month: Fuel Cells Part 2.
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 Fuel cells are systems which convert the chemical energy of a fuel, typically hydrogen, into electricity and heat by way of an electrochemical process which does not produce any noise nor involve any mechanical movement. The electric efficiency is very high and can reach 60%. If the fuel is hydrogen, the reaction only rejects pure water.
| History |
| Operating principle |
| The efficiency |
| Fuel cell types |
| The Evolution of PACs |
| Applications |
(PDF File : 26 pages) |
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 The most usual hydrogen molecule consists of two hydrogen atoms (H2). Colourless, odourless and non-corrosive, this molecule has the advantage of being especially energetic: 1 kg of hydrogen releases approximately 3 times more energy than 1 kg of gasoline (that is 120 MJ/kg, against 45 MJ/kg for gasoline). |
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