"Utilization of Fossil Fuels" Fuel and Combustion PPT Courseware

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"Utilization of Fossil Fuels" Fuel and Combustion PPT Courseware

Fossil fuels

Coal, oil and natural gas are the three most important fossil fuels in the world.

Coal, also called coal, is one of the oldest fossil fuels in the world and is known as the "food of industry."

Oil is known as the "blood of industry". Petroleum is not only an important fossil fuel but also a valuable industrial raw material.

Natural gas generally refers to flammable gases that form underground. The main component of natural gas is methane.

formation of coal

Plants that grow in swamps and forests rot and become covered with sand when they die. After a while, new plants begin to grow on it. When these plants die, they are covered with sand. This goes around and over again, and over hundreds of years, many layers of decomposed vegetation and silt are formed.

Over millions of years, these layers of decomposing plants were repeatedly exposed to geothermal heat and bacterial differentiation, and became coal seams.

Introduction to new energy

Currently, 70% of the energy consumed by humans comes from fossil fuels such as coal, oil, and natural gas. Under the current technical conditions, the extensive use of fossil energy has caused serious harm to the earth's environment and posed a great threat to human living space. Scientists predict that although fossil fuel energy will still account for a considerable proportion in the future, its dominance of the world will gradually end (fossil fuels formed on the earth over 200 million years ago are only enough for human use for more than 300 years), and renewable clean energy can It is expected to support half of the world's energy supply in the future.

nuclear energy

Current nuclear power generation mainly uses thermal neutron reactors, and most of the reactors in more than 400 nuclear power plants operating around the world are of this type. However, it can only utilize 1-2% of uranium resources, so countries are actively developing and utilizing fast breeder reactors to fully utilize uranium resources.

solar energy

A solar cell is essentially a semiconductor device whose typical feature is that it can directly convert light energy into electrical energy. Its working principle is that when sunlight shines on the silicon panel, photogenerated electron-hole pairs are generated. Under the action of the built-in electrostatic field of the battery, the electrons and holes are separated on both sides due to different charges. "Photovoltage" is the "photoelectric effect".

wind energy

Now wind energy has become a new energy and is widely used by people. The wind turbine shown on the right can generate electricity for people.

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"Utilization of Fossil Fuels" Fuel and Combustion PPT Courseware 3:

"Utilization of Fossil Fuels" Fuel and Combustion PPT Courseware 3 Three major fossil fuels 1. The food of the coal industry, black gold 2. The blood of the petroleum industry 3. Natural gas, the important gas The main component of fossil fuels is methane CH4. These fuels are the same as fossils. I've been through a lot...

"Utilization of Fossil Fuels" Fuel and Combustion PPT Courseware 2:

"Utilization of Fossil Fuels" Fuel and Combustion PPT Courseware 2 Fossil Fuels Three major fossil fuels Coal: the food of industry, one of the oldest fossil fuels in human history Petroleum: the blood of industry Natural gas: flammable gas naturally formed underground, The main ingredients are...

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Update Time: 2024-09-09

This template belongs to Chemistry courseware Hunan Education Edition Ninth Grade Chemistry Volume 1 industry PPT template

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