How is hydrogen used as an energy source?

As we all know, hydrogen is the most abundant element in the universe. About 7 1% of the earth's surface is covered with water, and hydrogen is mainly stored in water except in the air. Therefore, we can say that hydrogen is inexhaustible.

Semiconductor hydrogen production equipment in seawater is irradiated by sunlight to produce hydrogen, which is then liquefied and shipped to land for use.

Combustion of 1 g hydrogen can release 16 kilojoules of heat, which is about three times the calorific value of aviation gasoline; Hydrogen is a kind of pollution-free fuel, and the product of its combustion is water vapor, which will not pollute the natural environment because of a large amount of waste gas produced by combustion, like coal and oil. Hydrogen fuel is light in weight, which is the most suitable fuel for high-speed transportation such as aerospace and aviation, and can double the load and self-weight ratio; Hydrogen has a wide range of uses and strong applicability. It can be used not only for ordinary airplanes and ground vehicles, but also for cooking, heating and air conditioning. The transportation and storage of hydrogen is very convenient, and the pipeline transportation loss is small. According to the calculation, the cost of storing and transporting hydrogen by pipeline is less than 1/2 of the cost of transmission and distribution.

Therefore, it is no exaggeration to say that hydrogen energy will be an ideal energy source in 2 1 century.