Exercise is the key driving force of all life. Indeed, it is this aspect of human life that makes the world function and creates the world economy that people know today. But behind this movement is a very important and precious element, not always hydrocarbons. Hydrocarbons are simply called oil and oil is the lifeblood of fossil fuels and moves almost all vehicles in the road, water and the sky. Dependence on oil around the world is very important, but scientists know that oil is an irreproducible resource, so it will inevitably run out.
Hydrogen is widely believed to be an alternative energy source. Unbonded hydrogen reserves that can supply fossil fuels and uranium are not on the earth. Instead, unbonded hydrogen is produced with the help of other energy sources. It may play an important role in the future hydrogen economy as a general energy storage system for obtaining smooth output via intermittent power sources such as solar energy and as fuel for transportation of automobiles. However, this idea is currently unrealistic: hydrogen production is inefficient, storage, transportation and conversion to electricity is high. New technology may change this situation in the future
Hydrogen is one solution to this intermittent problem. It can be produced from renewable resources by electrolysis and can be used for grid balancing, energy storage, heating, fuel cell vehicle fueling and industrial hydrogen sources. If the world really wants to avoid climate disasters it is extremely important to expand the use of renewable energy and the key to getting the full potential out of it is hydrogen.
It should be noted that hydrogen is not the main source of energy in hydrogen energy systems. It is an intermediate or secondary form of energy, or energy carrier. Hydrogen supplements the primary energy source and presents it to the consumer conveniently at the desired location and time. Table VIII shows contaminants for three competing energy systems. From the environmental point of view, we can see that the coal / synthetic fossil system is the worst and the solar-hydrogen system is the best. Except for some NO x, the solar-hydrogen system does not produce any CO 2, C, Sox, hydrocarbons or particulate matter. However, solar hydrogen produces much lower NOx than other energy systems. This is because in the solar hydrogen energy system NOx is generated only by flame combustion of hydrogen in the air.
In the hydrogen energy system, hydrogen (and oxygen) is produced in a large-scale industrial plant where energy (solar, nuclear, even fossil) and water (H 2 O) are available. For large scale storage, hydrogen can be stored in underground mines, caves and / or aquifers. Thereafter, hydrogen is transported by pipeline or super tanker to cities and other places where energy is used. It is then used as a fuel and / or energy carrier for electricity, transportation, industrial, residential and commercial areas. The by-product is water or steam. If hydrogen is used, some NOx will also be produced, but it is much lower than similar combustion methods for fossil fuels. Water and steam are recovered from rainwater, rivers, lakes and the ocean, supplementing the water used to make hydrogen at the outset, creating a fully renewable resource.