nd not clean enough for industry use. Hydrogen creates severe and largely unresolved safety issues. This is one of the main problems of hydrogen as a power source, it forms a high explosive mixture with air and has to be handled with extreme care, special and expensive materials should to be used to avoid potential explosion. These statements are generally quite disincentive, but all of those problems can be solved, it is only a matter of time and money spent in researches. For example use of hydrogen, as a fuel for combustion engines looks very positive, there are still many problems to solve, but hydrogen would be probably the fuel of our cars in the future. One of the important benefits of hydrogen is that it can be used directly in an internal combustion engine very similar to engines used with gasoline. Positive is also that hydrogen supplies three times the energy of gasoline; this could result in a lower fuel consumption and better mileage. On the other hand, three main disadvantages of hydrogen as a car fuel are its low density, safety problems and, since the insulation is not perfect yet, also evaporating of hydrogen, that is typically about 1,7 percent a day. Hydrogen uses too much volume to be very useful, as an energy carrier and compressing it into a liquid will increase the costs and loses. Efficiency goes down, safety and infrastructure issues appear and still are four-time les hydrogen atoms in any liter of liquid hydrogen than in a liter of gasoline. "In terms of containment, 9,5 kg of hydrogen is equivalent to 25kg of gasoline, but storing 25 kg of gasoline requires only a tank with mass of 17 kg, whereas the storage of 9,5 kg of hydrogen requires 55 kg" (Peschka, 1987, WWW). Part of the reason for this difference is that the volume of hydrogen is about four times greater for the same energy content of gasoline. "Although the hydrogen storage vessel is large, hydrogen burns 1.33 times more efficiently than gasoline in ...
