If the hydrogen temperature is too high, it will accelerate the aging of the generator insulation material and shorten the life of the insulation material; when the hydrogen temperature is high, the cooling effect of the generator rotor core and coil; be reduced. In severe cases, the heat from the rotor core and coil will not be dissipated and will be carried away, there will be a risk of burns.
If the temperature of hydrogen is too low, the water vapor contained in it will easily condense, resulting in a decrease in the insulation capacity of the core and windings, and accelerate also corrosion.
How do water-hydrogen fuel cells generate electricity?
This machine is entirely a high-tech transformation machine that integrates chemical and multiple energy means technologies. It's incredible. In the past, people talked aboute hydroelectricity production. However, this is not a pure dream of hydropower generation in the past, but an objective fact converter. Everyone knows this magic converter after seeing it, and it can actually achieve zero pollution. . , releasing energy from fossil fuels and traditional electric energy, what is even more amazing is that its efficiency is more than twice that of an internal combustion engine, and its cost, mainly the cost of producing electricity, actually has advantages over our national grid. . What makes me even happier is that with this our smog problem will be solved. It's our Chinese dream!
The main difference between water-hydrogen fuel cells and ordinary batteries is that dry cells and batteries are energy storage devices that store electrical energy and release it when needed.e need, strictly speaking, water-hydrogen fuel cells are an energy; A generation device, such as a power plant, is an electrochemical power generation device that directly converts chemical energy into electrical energy.
Large power plants, whether hydroelectric, thermal or nuclear, send the electricity they produce to the grid, which then delivers it to users. However, due to the different loads of each electricity user, the electricity grid sometimes experiences peak peaks and sometimes low peaks, which can lead to power outages or voltage instability. In addition, about 70% of the combustion energy of traditional thermal power plants is consumed in huge equipment such as boilers and turbogenerators. When burning, a large amount of energy is consumed and a large amount of substances harmful is emitted. Using water-hydrogen fuel cells to generate electricity directly converts the chemical energy of the fuel into electrical energy without burning. The energy conversion rate can reach 60%-80%. The device can also be less polluting and less noisy. big or small, and is very flexible.
The basic principle of water-hydrogen fuel cell power generation is to reform methanol to produce hydrogen power. The products of the water-hydrogen fuel cell are electricity and water. The specific reaction process is as follows: hydrogen on the battery anode is decomposed into protons and electrons under the action of a catalyst. Positively charged protons pass through the separator to the cathode, and negatively charged electrons flow in the external circuit. thus generating electrical energy. The oxygen ions present on the cathode cocombine with electrons and protons under the action of the catalyst to form water. A battery with a large number of fuel cells connected in series can generate enough electricity to drive a car.
Characteristics of hydrogen and water fuel cells
(1) No pollution. Hydrogen fuel cells do not pollute the environment. Is electrochemical reaction, rather than combustion (gasoline, diesel) or energy storage (battery), the most typical traditional backup power solution? Burning will release pollutants such as COx, NOx, SOx and dust. Dye things. As mentioned above, water-hydrogen fuel cells only produce water and heat.
(2) Silent. The fuel cell operates quietly, with noise below 55 dB, which is below the level of normal conversation. This makes the pilWater-hydrogen fuel cells suitable for indoor installation or where there are exterior noise restrictions.
(3) High efficiency. The power generation efficiency of fuel cells can reach more than 50%. This is determined by the conversion properties of fuel cells, which directly convert chemical energy into electrical energy without the need for intermediate conversion of thermal energy and machinery (generator).
With the development of hydrogen production technology, water-hydrogen fuel cells are getting closer and closer to our lives. In the near future, methanol will be delivered to thousands of homes through pipes like water, and each user will be connected to a water-hydrogen fuel cell and then connected to various electrical equipment. This will create a comfortable living environment for people and ease the heavy tasks of life.I hope that this new clean and convenient energy source - water-hydrogen fuel cells - will be used in people's daily lives as soon as possible.