According to published the Proceeding of the National Academy of Sciences Magazine, it is possible get the hydrogen in a much more economic and more direct way than we were traditionally knowing; a grain of salt is enough to react to the cells responsible for electrolysis hydrogen is obtained with which. This seems out of the world of science fiction, is what they have discovered a group of researchers from the University of Pennsylvania, giving a giant step in hydrogen production easily refers.

And it is not in vain we can say that we are faced with an important finding, already that this process of electrolysis would not need carbon dioxide (usually sent into the atmosphere in this type of system, what is polluting), nor is it necessary to use the electricity grid, implying that you it’s a really organic process. As the researchers have stressed: “this system could produce hydrogen in any place where there are sewage near water Navy”. It is obvious that, if we stop to think about it, many places on the planet could benefit from this finding.

This type of discovery are those who seem more important, as they are called upon to help many countries, and therefore the idea of democratizing energy make it possible, which is one of the most important objectives that we have for the 21st century, and in which no doubt renewables and particularly hydrogen will have much to do.

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Restore heat

There, through a heat exchanger (coil), it transfers its calories solar water heating.

Store hot water

The solar is a metal tank well insulated. It is the subject of domestic water. The hot water is withdrawn immediately replaced by the same amount of cold water from the network, heated in turn by the liquid coolant.

Circulating the primary fluid

The liquid circulation can be natural or forced:

? In the first case, the liquid coolant circulates through the density difference with water balloon. As it is warmer, less dense that it raises naturally thermoregulation. The ball must be placed above the sensors. On this principle are designed solar water heaters in thermosyphon.
? In the second case, a small electric pump, the pump, sets in motion the coolant when it is hotter than hot water balloon. Its operation is controlled by a control device exploiting the differences in temperature: if the probe ball is warmer than the sensor, regulation cuts the circulator. Otherwise, the pump is restarted and the primary liquid heats its balloon.

The shortage of sunshine

Throughout the metropolis, we must deal with bad times (winter, spring and autumn, long period of bad weather). Solar energy can then ensure the entire production of this. Also, the balloon is equipped with a booster that takes over when needed, and restores the stock of this. These may include:

? a resistor (electric boost), often placed at half height of solar balloon;
? A coil (Hydraulic booster) connected to a boiler (gas, oil, wood) located downstream of the ball.
A second balloon fitted with an electric heater can also be used as extra.

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