The fuel has gone through the era of mainly wood, mainly coal and mainly oil, and now it is changing to mainly natural gas. At the same time, fossil fuels, biofuels and nuclear energy are being used more widely. Sustainable development, environmental protection, the cost of fuel supply and the changes in the existing fuel form and structure determine the global energy diversification model. Natural gas consumption will increase steadily, and in some areas, gas-fired power stations will tend to replace coal-fired power stations. In the future, while developing traditional fuels,
Development of fuel
Firewood is the earliest fuel used, and it becomes a heating energy source by burning. Wood is very important in cooking and providing heat, which enables people to survive in a cold environment.
Coal is the fuel after firewood, and it becomes heat energy by burning. Cooking and heating are very important.
Oil is the main fuel of industry, and the refined natural gas is used as household and industrial fuel.
Natural gas is the most used fuel at present, and it is very important in cooking and heating.
Coal, oil and natural gas are important fuels.
Nuclear energy is the power of nuclear power plants.
Combustion can be divided into many forms.
Solid fuels (such as coal, charcoal, wood);
Liquid fuels (such as gasoline, kerosene and petroleum);
Gaseous fuels (such as natural gas, coal gas and biogas);
According to the type can be divided into
Fossil fuels (such as oil, coal, oil shale, methane, oil sands, etc. );
Biofuels (such as ethanol and biodiesel). );
Nuclear fuel (such as uranium 235, uranium 233, uranium 238, plutonium 239, thorium 232, etc. )
Refers to substances that can produce nuclear energy, such as uranium and plutonium.
I. Solid fuels
Firewood is the earliest fuel used, and it becomes a heating energy source by burning. Wood is very important in cooking and providing heat, which enables people to survive in a cold environment.
Second, liquid fuel.
Gases extracted from petroleum are used as domestic and industrial fuels.
Third, gas fuel.
Biogas is the main fuel in rural areas.
Fourth, biomass energy.
Biomass energy refers to living or dead organic matter that can be used as fuel or industrial raw materials. Biomass energy is most commonly used as biomass fuel produced by planting plants, or as animals or plants to produce fibers, chemicals and heat energy. Many plants are used to produce biomass energy, including Miscanthus, switchgrass, hemp, corn, poplar, willow, sugarcane and palm trees.
The history of fuel development directly affects the history of human development.
A major breakthrough in fuel utilization occurred in the second half of the18th century. The advent of 1785 steam engine transformed thermal energy into mechanical energy and promoted the industrial revolution. The rapid development of mechanized large-scale industrial production has prompted the energy to shift from firewood fuel to fossil fuel, first of all, the rapid increase of coal consumption. /kloc-After the mid-9th century, with the invention of internal combustion engine, the development of thermal power plants and the improvement of drilling technology, oil and natural gas are widely used. At present, the production and life of human society has entered the era of gas fuel, and the demand for gas fuel is increasing. Because the primary energy for producing gas fuel is mainly coal and oil, both of which are non-renewable, long-term forced mining will inevitably make them increasingly exhausted, and the development and utilization of fuel must take a diversified road. In 1950s, with the military application of atomic energy technology, the industrial application of nuclear fission technology has been realized. The establishment of nuclear power plants and the use of nuclear fuel is a major technological revolution in the history of energy utilization, which has laid a solid material foundation for the stable development of human society. With the improvement of science and technology, new fuels such as natural gas, fossil fuel and bio-fuel will be fully and reasonably developed and utilized, especially if it can be realized in controlled nuclear fusion. It will provide endless energy for mankind. Man cannot live without fuel. Fuel is the main foundation of human survival, life and development. The development of fuel has always played an important role in the progress of human society. The development of fuel is accompanied by a great leap in human survival and social progress. For thousands of years, in the history of human fuel utilization, it has roughly experienced four milestone development stages: the primitive society used fire, and the ancestors ushered in the dawn of civilized society under the light of fire;
Future demand of fuel development
It has enough reserves to meet the needs of human survival and development and will not cause environmental pollution problems that affect human survival.
The demand for fuel in the future, human society will still rely on fuel and its sustainable development in the future. Therefore, we must clearly understand the current fuel reserves on the earth, and develop new fuel utilization technologies that must be developed, so that human survival can be maintained permanently.
The world's energy structure has experienced an era in which wood is dominant, coal is dominant and oil is dominant, and now it is changing to natural gas. At the same time, nuclear energy is being used more widely.
With the progress of new fuel technology and increasingly strict environmental protection standards in the world, the world fuel will further develop in the direction of cleanliness in the future. Not only will the fuel production process be clean, but the fuel industry will continue to produce more and better clean fuels, and the proportion of clean fuels in the total fuel consumption will gradually increase.
There are great differences in fuel processing and consumption efficiency among countries in the world, and there is great potential to improve fuel utilization efficiency. With the progress of new fuel technology in the world, the efficiency of fuel utilization in the world will be improved day by day, and the fuel intensity will be gradually reduced.