A device that produces electrical energy by the chemical reactionof hydrogen with oxygen.
Hydrogen fuel cells use the chemical element hydrogen to create batteries that store energy. The basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode, respectively. After the hydrogen diffuses outward through the anode and reacts with the electrolyte, the electrons are released and reach the cathode via an external charge.
The power generation efficiency of fuel cells can reach more than 50%. This is determined by the conversion properties of fuel cells. Chemical energy is directly converted into electrical energy without the need for intermediate thermal and energy conversion. mechanical energy (generator).
Advantages of hyd fuel cell vehiclesrogen
Excellent energy-saving and environmentally friendly folding performance: throughout the entire operation process of hydrogen fuel cells, except the consumption of oxygen and air, there is no further energy consumption. There is no refueling or recharging, and the power-saving performance is unquestionable. At the same time, the hydrogen fuel cell only produces water in the process of generating electricity. Its biggest advantage is therefore that it truly achieves the goal of zero emissions.
Folding is easy to achieve: The practical application of hydrogen engines is relatively easy to achieve. The traditional internal combustion engine structure can burn hydrogen with only slight modifications, as well as existing vehicle engine production lines and their support. installations around the world canbe fully utilized, it is currently the most economical and widely used solution for the application of hydrogen energy in automobile engines.
The above content refers to Baidu Encyclopedia-Hydrogen fuel cell
Conjectures about cars powered by circulating electrolyzed water< /h3>
The effects of electrolyzed water on healthy people It has the following four major disadvantages:
1. It loses the minerals and trace elements that the human body must obtain from water. The more nutritious the water, the more so-called “dirty” substances will be precipitated after electrolysis. These “dirty things” are minerals and trace elements.
2. Electrolyzed water has extremely high activity and solubility. When it enters the body, it dissolves and dilutes human nutrition. Prolonged and excessive consumption causes a nutritional imbalance in the body.e human body. The "water" the body drinks, the drier the mouth becomes, which directly affects physical health.
3. Drinking electrolyzed water containing hydroxide ions for a prolonged period or longer can reduce and neutralize stomach acid, thereby destroying normal digestion.
4. Highly active electrolyzed water can speed up digestion. accelerates the functioning of human cells and organs, making people mature and age in advance. It's like a car that is moving away and being scrapped at an accelerating rate.
The process in which water (H2O) is electrolyzed by direct current to generate hydrogen and oxygen is called water electrolysis. When an electric current passes through water (H2O), hydrogen gas (H2) is formed by reducing the water at the cathode and oxygen (O2) is formed by oxidizing the water at the anode . The quantity of hydrogen produced is approximately twice that ofoxygen. Water electrolysis is the next generation method for preparing hydrogen fuel, replacing steam reforming to produce hydrogen.
As early as 1789, Jan Rudolf de Man and Adrian Pais van Truswijk used an electrostatic device to generate electricity and used gold electrodes to electrolyze water from the Leiden bottle into gas. 1800, Alessandro Volta invents the voltaic pile, which will be used a few weeks later to electrolyze water by William Nicholson and Anthony Carlyle. After Gram invented the direct current generator in 1869, water electrolysis gradually attracted attention as an inexpensive method of producing hydrogen.
The problem is that the energy conversion is not spontaneous and requires the loss of external energy. The electrolysis of water produces hydrogen and oxygen. Where does electricity come from? Judging by the current technical levell, it is not worth electrolyzing water to obtain hydrogen energy. Water supply efficiency for producing hydrogen is typically 75-85%. This and the difficulty of hydrogen storage materials are the reasons why hydrogen energy is not currently used in large quantities.
In addition, most of the energy generated by combustion will be dissipated as heat. Currently, the best internal combustion engines can only achieve less than 55% efficiency, usually only 30-40%. The efficiency of water electrolysis to obtain hydrogen energy for combustion will not reach 50%. However, the efficiency of hydrogen-based electricity generation can reach 50-70%. So, are you going to use the hydrogen you worked so hard to obtain through electrolysis to produce electricity?
However, hydrogen effectively constitutestively an attractive new source of energy.
Haha, don’t you understand? Please note that I mentioned hydrogen storage to illustrate that hydrogen is not widely used. Your response is not an attempt to avoid the important but to avoid the weak. . . . Please express your opinion on the essence of the problem "energy use". The above figures are purely ideal and theoretical. In fact, it would be a miracle if your solution could achieve 10% overall electrical energy efficiency. However, if electrical power is used to directly drive a car, the efficiency is likely to be higher. 70% to 80%.
Please also pay attention to the question of where the electrical energy comes from. Electrical energy is not a primary energy source. Do you use nuclear power, solar power, hydropower, tidal or coal? Which one does not have such defects?