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  • Power Plant

    Power Plant

    In the process of power production, when the generator runs to convert mechanical energy into electrical energy, energy loss will inevitably occur. The lost energy will eventually become thermal energy, which will increase the temperature of the rotor, stator and other components of the generator. In order to remove this part of the heat, the generator is often forced to cool. Commonly used cooling methods include air cooling, water cooling and hydrogen cooling. Since the thermal conductivity of hydrogen is 7 times that of air, and the cooling efficiency of hydrogen is higher than that of air cooling and water cooling, the power plant generator sets adopt the water-hydrogen-hydrogen cooling method, that is, the stator winding water cooling, the rotor winding hydrogen cooling, the iron core and the end hydrogen external cooling of structural parts. Hydrogen has a strong thermal conductivity. Power plants have sufficient power, but the amount of hydrogen is not too large, and hydrogen is usually produced by electrolysis.

  • Semiconductor

    Semiconductor

    Hydrogen is used in crystal growth and contrast preparation, oxidation process, epitaxial process and chemical phase deposition (CVD). The semiconductor industry has extremely high requirements for gas purity, and the "doping" of trace impurities will change the surface activity of semiconductors. When silicon uses hydrogen chloride to generate chlorine trichloride SIHCI3, it is separated through a separation process and reduced with hydrogen at high temperature to achieve the purity required by the semiconductor: SIHCI3+H2----Si+3HCI. The purity requirements for hydrogen in the process is very high. The traces of carbon monoxide and carbon dioxide impurities contained in hydrogen can oxidize the substrate and generate polysilicon. If it contains methane, silicon carbide will enter the outer layer and cause defects. In the past, silicon external delay required oxygen content to be less than 1*10-6 and dew point to be lower than -70C. Now the requirements are more stringent. Hydrogen generation by water electrolysis can better meet the high requirements of the semiconductor industry for hydrogen.

  • Meteorology

    Meteorology

    As a lift-off device, the balloon is currently the main tool used in high-altitude observations. Compared with other lift-off devices (aircraft, rockets, satellites, etc.), the balloon has the characteristics of no power, less cost, and convenient use. The application range of the weather balloon is very wide. According to the different requirements of the use, the shape, speed (translation or landing), load, reachable height and color of the weather balloon are various. It is an observation platform that is made of rubber or plastic materials, filled with hydrogen, helium, and other gases lighter than air, and carried instruments into the air to conduct high-altitude observation. It has the characteristics of low cost and no power increase. A weather balloon that is not connected to the ground is called a free balloon, and a balloon connected to the ground by a cable is called a tethered balloon.

  • Aerospace

    Aerospace

    The aviation field usually uses hydrogen as fuel, mainly because hydrogen has a large heating value. During World War II, hydrogen was used as the liquid propellant for the A-2 rocket engine. In 1960, liquid hydrogen was first used as a fuel for aerospace. The take-off rocket used by the "Apollo" moon landing spacecraft launched by the United States in 1970 also used liquid hydrogen as fuel. Now hydrogen is a common fuel in the rocket industry. For modern space shuttles, it is more important to reduce fuel weight and increase payload. The energy density of hydrogen is very high, which is three times that of ordinary gasoline. This means that the space shuttle uses hydrogen as fuel and its weight can be reduced by 2/3, which is undoubtedly extremely beneficial to the space shuttle. In addition, hydrogen can also be used in spacecraft.

  • Steel Plant

    Steel Plant

    Steel is an important part of modern society. As the world's population grows and the process of urbanization accelerates, global steel demand is expected to increase. If no new technology can be found in the production of ore and steel, the carbon dioxide emissions of the steel industry will increase by as much as 25% by 2050. At present, Sweden uses coal and coke shipped from Australia and other places to reduce iron ore to iron. HYBRIT's idea is to use hydrogen, and hydrogen is produced using Swedish renewable energy, and the emissions will only be water.

  • Float Glass

    Float Glass

    In the float glass production process, in order to ensure that the tin liquid in the tin bath is not oxidized and improve the quality of the glass, it is necessary to continuously and evenly deliver high-purity nitrogen and hydrogen mixtures into the tin bath. As one of the protective gases, hydrogen is a reducing gas, which can quickly react with oxygen to prevent tin from supplemental oxidation and reduce tin oxides to reduce tin consumption. Although the hydrogen station is small, it occupies a pivotal position in the glass factory. The purity and pressure of hydrogen affect the atmosphere in the tin bath. At present, the two most commonly used hydrogen generation methods in float glass production lines are hydrogen generation by water electrolysis and hydrogen generation by ammonia decomposition.

  • Food

    Food

    Many natural edible oils have a large degree of unsaturation. After hydrogenation treatment, the resulting product can be stored stably, and can resist the growth of bacteria and increase the viscosity of the oil. The hydrogen used in the hydrogenation of vegetable oil has high purity requirements and generally requires strict purification before use. The hydrogenated products of edible oil can be processed into margarine and edible protein. The hydrogenation of non-edible oil can be used to produce soap and feedstock for animal husbandry. The process involves using hydrogen and glycerides of unsaturated acids (oleic acid, linoleic acid, etc.) to introduce hydrogen into the composition of liquid fat or vegetable oil.

  • Chemical Industry

    Chemical Industry

    Hydrogen has a wide range of uses in industry: people use hydrogen to extract oxygen from oxygen compounds and smelt metals in the metallurgical industry. For example, metals such as tungsten and molybdenum, which are very important in the military industry and civilian industry, are refined using hydrogen. The chemical equation for smelting metal tungsten with hydrogen is as follows: WO3 + 3H2 = heating △ = 3H2O + W Hydrogen is also an important chemical raw material. For example, hydrogen can be used to produce ammonia (NH3) and further produce fertilizers. Hydrogen can also be used to make hydrochloric acid, and liquid vegetable oil can be made into margarine. Hydrogen is also an ideal fuel. Hydrogen is very rich in resources, and water is the storage of hydrogen. The combustion product of hydrogen is water. Once people use solar energy to produce cheap hydrogen from water, hydrogen will become an inexhaustible energy source.