What is clean energy?

Question 1: What is the concept of clean energy? In this section, clearner energy is energy that does not emit pollutants, including nuclear power plants and "renewable energy". Renewable energy refers to energy with renewable raw materials, such as hydropower, wind power, solar energy, bio-energy (biogas), tidal energy and so on. Renewable energy has no possibility of energy exhaustion, so it is paid more and more attention by many countries, especially those with energy shortage.

Solar clean energy editing section 1, conversion of light and heat. Such as solar water heaters and solar cookers.

2, the conversion of light and electricity, such as solar panels, solar cars, ships, etc. Solar clean energy is a new type of energy that converts the light energy of the sun into other forms of heat energy, electric energy and chemical energy, and does not produce other harmful gases or solid wastes during the energy conversion process. It is environmentally friendly, safe and pollution-free.

Ocean energy clean energy editor Ocean energy in this paragraph refers to renewable energy attached to seawater. The ocean receives, stores and releases energy through various physical processes. These energies exist in the ocean in the form of tides, waves, temperature differences, salinity gradients and ocean currents.

1, tidal energy

2. Wave energy

3. Temperature difference energy of seawater

4, salt difference energy

5. Ocean current energy

Wind Energy Clean Energy In this section, we edit the kinetic energy generated by the massive air flow on the earth's surface. Because of the different temperature changes, the water vapor content in the air is different after being irradiated by the sun, and the air pressure in different places is different. High-pressure air flows to the low-pressure area in the horizontal direction, forming wind. Wind energy resources depend on wind energy density and accumulated hours of available wind energy. Wind energy density is the available wind power per windward area, which is directly proportional to the cubic power of wind speed and air density. It is estimated that the global total wind energy is about 654.38+03 billion kilowatts. Wind energy resources are greatly influenced by topography, and most of the world wind energy resources are concentrated in the contraction zone of coastal and open continent. In nature, wind is a renewable and pollution-free huge energy source. With global warming and energy crisis, countries are stepping up the development and utilization of wind power generation, trying to reduce the emissions of greenhouse gases such as carbon dioxide and protect the earth on which we live.

There are two main forms of wind energy utilization: wind power generation and wind power generation, of which wind power generation is the main one. Taking wind energy as power means using wind to directly drive various mechanical devices, such as driving a water pump to lift water. This kind of wind engine has the advantages of low investment, high efficiency, economy and durability.

Among all gases 1 in this paragraph, hydrogen has the best thermal conductivity, which is 10 times higher than that of most gases, so hydrogen is an excellent heat transfer carrier in the energy industry.

Hydrogen is the most common element in nature, and it is estimated that it constitutes 75% of the mass of the universe. Except hydrogen in the air, it is mainly stored in water in the form of compounds, and water is the most widely distributed substance on the earth. It is estimated that if all the hydrogen in seawater is extracted, the total heat generated is 90O0 times greater than that released by all fossil fuels on the earth.

The calorific value of hydrogen is the highest among all fossil fuels, chemical fuels and biofuels except nuclear fuel, which are 142 and 35 1kJ/kg respectively, which is three times that of gasoline.

Hydrogen has good combustion performance, fast ignition, wide combustible range when mixed with air, high ignition point and fast combustion speed.

Hydrogen itself is nontoxic. Compared with other fuels, hydrogen is the cleanest when burning. Except water and a small amount of hydrogen nitride, it will not produce pollutants harmful to the environment, such as carbon monoxide, carbon dioxide, hydrocarbons, lead compounds and dust particles. A small amount of hydrogen nitride will not pollute the environment after proper treatment, and the water produced by combustion can continue to produce hydrogen and be recycled.

Bioenergy Clean Energy Editor This paragraph of bioenergy is an energy form in which solar energy is stored in organisms in the form of chemical energy. It is an energy source with biomass as the carrier, which directly or indirectly comes from photosynthesis of plants. Among all kinds of renewable energy, biomass is unique. It is the stored solar energy and the only renewable carbon source, which can be converted into conventional solid, liquid and gas fuels. All biomass has a certain amount of energy, and the main energy utilization is agricultural and forestry by-products and their processing residues, including human and animal manure and organic waste. Biomass can provide basic fuel for human beings.

Bioenergy > >

Question 2: What kinds of clean energy include solar energy, wind energy, biomass energy, small hydropower and combustible ice?

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-Gerun Clean Energy Network

Question 3: What are the clean energy sources?

1. Ocean energy: Ocean energy refers to renewable energy attached to seawater. The ocean receives, stores and releases energy through various physical processes, which exist in the ocean in the form of tides, waves, temperature differences, salinity gradients and ocean currents.

1, tidal energy; 2. Wave energy; 3. Temperature difference energy of seawater; 4. Salt difference energy; 5. Ocean current energy.

2. Solar energy: Solar energy is a kind of clean energy that converts the light energy of the sun into other forms of heat energy, electric energy and chemical energy. The energy conversion process does not produce other harmful gases or solid wastes, and it is a new energy source with environmental protection, safety and no pollution.

1, the conversion of light and heat. Such as solar water heaters, solar cookers and solar thermal power generation systems.

2, the conversion of light and electricity, such as solar panels, solar cars, ships, etc.

3. Wind energy: the kinetic energy generated by a large amount of air flowing on the earth's surface. Because of the different temperature changes, the water vapor content in the air is different after being irradiated by the sun, and the air pressure in different places is different. High-pressure air flows to the low-pressure area in the horizontal direction, forming wind. Wind energy resources depend on wind energy density and accumulated hours of available wind energy. Wind energy density is the available wind power per windward area, which is directly proportional to the cubic power of wind speed and air density. It is estimated that the global total wind energy is about 654.38+03 billion kilowatts. Wind energy resources are greatly influenced by topography, and most of the world wind energy resources are concentrated in the contraction zone of coastal and open continent. In nature, wind is a renewable and pollution-free huge energy source. With global warming and energy crisis, countries are stepping up the development and utilization of wind power generation, trying to reduce the emissions of greenhouse gases such as carbon dioxide and protect the earth on which we live.

Hydrogen energy: 1. Among all gases, hydrogen has the best thermal conductivity, which is 10 times higher than that of most gases, so hydrogen is an excellent heat transfer carrier in energy industry. 2. Hydrogen is the most common element in nature. It is estimated that it accounts for 75% of the mass of the universe. Except hydrogen in the air, it is mainly stored in water in the form of compounds, and water is the most widely distributed substance on the earth. It is estimated that if all the hydrogen in seawater is extracted, the total heat generated is 9000 times greater than that released by all fossil fuels on the earth. 3. Among all fossil fuels, chemical fuels and bio-fuels, except nuclear fuel, the calorific value of hydrogen is the highest, which is 142 and 35 1kJ/kg respectively, which is three times that of gasoline. 4. Hydrogen has good combustion performance, fast ignition, wide combustible range when mixed with air, high ignition point and fast combustion speed. Hydrogen itself is non-toxic. Compared with other fuels, hydrogen burns cleanest. Except water and a small amount of hydrogen nitride, it will not produce pollutants harmful to the environment, such as carbon monoxide, carbon dioxide, hydrocarbons, lead compounds and dust particles. A small amount of hydrogen nitride will not pollute the environment after proper treatment, and the water produced by combustion can continue to produce hydrogen and be recycled.

5. Bioenergy: Bioenergy is a form of energy in which solar energy is stored in organisms in the form of chemical energy. It is a kind of energy with biomass as the carrier, which directly or indirectly comes from photosynthesis of plants. Among all kinds of renewable energy, biomass is unique. It is the stored solar energy and the only renewable carbon source, which can be converted into conventional solid, liquid and gas fuels.

Bioenergy has the following advantages:

1, providing low-sulfur fuel; 2. Provide cheap energy (under certain conditions); 3. Converting organic matter into fuel can reduce environmental hazards (such as garbage fuel); 4. Compared with other non-traditional energy sources, there are fewer technical problems.

Disadvantages of bioenergy: 1, plants can only convert a very small amount of solar energy into organic matter; 2. The organic energy per unit surface is low; 3. Lack of land suitable for planting plants; 4. The organic matter contains too much water (50% ~ 95%).

6. Geothermal energy: Geothermal energy is natural thermal energy extracted from the earth's crust. This energy comes from the lava inside the earth and exists in the form of heat. This energy is the energy that causes volcanic eruptions and earthquakes. The temperature inside the earth is as high as 7000 degrees Celsius. At a depth of 80 to 100 kilometers, the temperature will drop to 1200 degrees Celsius. Heat can be transferred to a place closer to the ground through groundwater and lava flowing to the crust 1 5 km to the ground. The high-temperature lava heats the nearby groundwater, and the heated water will eventually seep out of the ground. The simplest and most cost-effective way to use geothermal energy is to directly use these heat sources and extract their energy. Geothermal energy is renewable resources.

Geothermal energy utilization: 1, 200 ~ 40...> & gt

Question 4: What kind of energy is "clean energy"? Clean energy is a kind of energy that does not emit pollutants, including nuclear power plants and "renewable energy". Renewable energy refers to energy with renewable raw materials, such as hydropower, wind power, solar energy, biomass energy (biogas), tidal energy and so on. Renewable energy has no possibility of energy exhaustion, so it is paid more and more attention by many countries, especially those with energy shortage. Information about clean energy and green energy can be found in Tianjin Electric Power Science and Technology Museum, which was designed and built by Ke Rui.

Question 5: Gas is a kind of clean energy, and it is also a kind of gas. What are the common qi, what, what, what. Gas is a clean energy source, and it is also a (colorless) (odorless) (less dense than air) gas.

Common fuels are (natural gas), (artificial gas) and (liquefied petroleum gas).

Question 6: What is the clean energy industry? Clean energy is also called new energy. It is often mistaken for renewable energy. In fact, clean energy includes three categories: one is renewable energy. The second is to recycle energy. The third is smart energy.

Question 7: What is clean energy? Coal, natural gas, oil and other general energy sources will emit pollutants in the process of use. Clean energy means: clean energy is energy that does not emit pollutants. It includes nuclear energy and "renewable energy". Renewable energy refers to energy with renewable raw materials, such as hydropower, wind power, solar energy, bio-energy (biogas), tidal energy and so on. There is no possibility of energy exhaustion in renewable energy, so it is paid more and more attention by many countries, especially those with energy shortage.

Question 8: What is the second largest clean energy source in the world? Solar energy is the second largest clean energy in the world.