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What are the major conventional energy sources
Question 2: What kinds of conventional energy? â’ˆ conventional energy is also known as conventional energy. Refers to the wreckage of the current stage of science and technology level conditions, people have been widely used, technically mature energy sources, such as coal, oil, natural gas, hydroelectric power, wood and so on.
🙂 Most of the traditional energy sources are non-renewable energy, although the reserves of coal is the richest of all minerals, oil and natural gas, etc., due to its non-renewability, these energy sources will always be consumed.
3 traditional energy in the utilization, mostly through combustion, in the process of combustion, producing a variety of different gases, soot particles, polluted air, water, especially the emission of greenhouse gases, so that the global warming, the impact on the living environment of human beings is greater, as far as each individual is concerned, their bodies, especially the respiratory aspect of the impact is greater.
Question 3: What are the conventional energy sources Conventional energy
conventional energy
Conventional energy, also known as conventional energy, refers to energy sources that have been produced on a large scale and widely utilized. Table 2-1 statistics of several energy sources such as coal, oil, natural gas, nuclear energy, etc. are one-time non-renewable conventional energy. Hydropower, on the other hand, is a renewable energy source, such as the Gezhouba Hydroelectric Power Station and the future Three Gorges Hydroelectric Power Station, and as long as the water of the Yangtze River does not dry up, power generation will not stop. Coal and oil and gas is not, they are in the earth's crust after millions of years of formation (according to the current rate of adoption, oil can be used for decades, coal can be used for hundreds of years), these energy sources in the short term is not possible to regenerate, and therefore people have a sense of crisis is very natural.
Primary energy sources that have been mass-produced and widely utilized. Also known as traditional energy. Such as coal, oil, natural gas, hydro and nuclear fission energy, is the main source of energy for social progress and civilization. When discussing energy issues, the main reference is to conventional energy. New energy is the energy systematically developed and utilized on the basis of new technology, such as solar energy, wind energy, ocean energy, geothermal energy, etc. Compared with conventional energy, new energy is produced on a smaller scale and used in a narrower range. The division between conventional energy and new energy is relative. Take nuclear fission energy as an example, in the early 1950s when it began to be used to produce electricity and used as power, it was considered a new energy source. By the 1980s, many countries around the world had classified it as a conventional energy source. Solar and wind energy is utilized in the history of many centuries earlier than the nuclear fission energy, due to the need for systematic research and development in order to improve the utilization efficiency and expand the scope of use, so they are still included in the new energy.
Question 4: What are the limitations of conventional energy Conventional energy is also called conventional energy, English name conventional energy
, refers to the energy that has been produced on a large scale and widely used.
The limitations of conventional energy are mainly reflected in the following points:
1, pollution, high carbon emissions. Traditional energy in the combustion process, the inevitable generation of sulfur dioxide, nitrogen oxides, soot and other pollutants. At the same time will produce a large amount of carbon dioxide, making global warming.
2, uneven distribution. Traditional energy is more coal, oil, natural gas and other energy sources, the distribution of these energy sources is uneven, only long-distance transportation.
3. Non-renewable. Traditional energy generation time is too long, up to hundreds of millions of years, is considered to be non-renewable.
Question 5: What are the new types of energy? New energy is relative to conventional energy, nuclear energy, solar energy, wind energy, biomass energy, hydrogen energy, geothermal energy and tidal energy and many other kinds. The *** same characteristic of new energy is that it is relatively clean and almost never runs out, except for nuclear fission fuel. Because coal, oil, gas conventional energy has the disadvantages of polluting the environment and non-renewable, therefore, mankind is paying more and more attention to the development and utilization of new energy.
Question 6: What are the new energy sources in China? New energy is also known as unconventional energy. Refers to a variety of energy forms other than conventional energy. Refers to just started the development and utilization or are actively studying, to be promoted energy, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy. Common new energy sources Solar energy Solar energy generally refers to the radiant energy of sunlight. The main forms of utilization of solar energy are solar photothermal conversion, photovoltaic conversion and photochemical conversion of the three main ways Broadly speaking, solar energy is the source of many of the earth's energy, such as wind energy, chemical energy, potential energy of water and other forms of energy caused by solar energy or converted into. The main ways to utilize solar energy are: solar electric energy pools, which convert the energy contained in sunlight into electricity through photoelectric conversion; and solar water heaters, which use the heat from sunlight to heat water and generate electricity from the hot water. Nowadays, many companies have started to utilize solar energy, for example, Qingdao Lingding New Energy Co., Ltd. has developed a series of products such as solar cooker, solar oven, solar cooker reflective film, solar water boiler, and so on, using solar energy. Solar energy is clean and environmentally friendly, without any pollution, the use of high value, solar energy is no energy shortage, its various advantages determine its irreplaceable position in the energy replacement. Solar energy can be divided into 3 kinds: 1. Solar photovoltaic Photovoltaic panel module is a kind of exposure to sunlight will produce direct current power generation device, by almost all to semiconductor materials (such as silicon) made of thin solid photovoltaic cells. Since there are no moving parts, they can be operated for long periods of time without causing any wear and tear. Simple photovoltaic cells can provide energy for watches and computers, while more complex photovoltaic systems can light houses and supply power to the grid. Photovoltaic panels can be made in different shapes and modules can be connected to generate more power. In recent years, photovoltaic modules have been used on rooftops and building surfaces, and even as part of windows, skylights or shading devices. These photovoltaic installations are often referred to as building-attached photovoltaic systems. 2. Solar Thermal Energy Modern solar thermal technology concentrates sunlight and uses its energy to produce hot water, steam and electricity. In addition to using appropriate technology to collect solar energy, buildings can also utilize the sun's light and heat energy by incorporating appropriate features into their design, such as large south-facing windows or building materials that absorb and slowly release the sun's heat. 3. Solar photosynthesis: Plants utilize sunlight for photosynthesis to synthesize organic matter. Therefore, it is possible to artificially mimic plant photosynthesis to synthesize large quantities of organic matter needed by humans and increase the efficiency of solar energy use. Nuclear energy: Nuclear energy is the energy released from the nucleus of an atom by transforming its mass in accordance with Albert Einstein's equation E = m. Einstein's equation E=mc^2;, where E=energy, m=mass, and c=speed of light constant. There are three main forms of nuclear energy release: A. Nuclear fission energy The so-called nuclear fission energy is released through the fission of some heavy nuclei (such as uranium-235, uranium-238, plutonium-239, etc.) B. Nuclear fusion energy By two or more hydrogen nuclei (such as the isotopes of hydrogen - deuterium and tritium) combined into a heavier nuclei, while the mass loss released The reaction is called a fusion reaction, and the energy released is called fusion energy. C. Nuclear Decay Nuclear decay is a natural and much slower form of fission that is difficult to utilize because of its slow release of energy. The main problems in the utilization of nuclear energy: (1) low utilization of resources (2) nuclear waste generated after the reaction has become a potential hazard to the biosphere, and its final treatment technology has not yet been fully resolved (3) the safety of reactors needs to be constantly monitored and improved (4) the constraints of nuclear non-proliferation requirements, i.e., the plutonium-239 generated in the reactors of nuclear power plants is subject to control (5) the cost of investment in the construction of nuclear power generation is still higher and has a higher investment risk than that in the generation of conventional energy sources. Higher power generation and higher investment risk Marine energy Marine energy refers to various renewable energy sources embedded in seawater, including tidal energy, wave energy, current energy, seawater temperature difference energy, seawater salinity difference energy, etc. These energy sources are renewable and have a high degree of reliability. These energy sources are renewable and do not pollute the environment and other advantages, is an urgent need to develop and utilize new energy of strategic significance. According to scientists' estimation, wave power on the earth contains as much as 90 trillion degrees of electricity. At present, the sea navigation buoys and lighthouses have been used on the wave generator issued by the electricity to light. Large wave generators have also been introduced. China is also conducting research and tests on wave power generation and has made power generation devices for use by beacon lights. The future world, every ocean ...... >>
Question 7: What are the new energy sources The various forms of new energy are directly or indirectly from the sun or deep inside the earth's thermal energy. Including solar energy, wind energy, biomass energy, geothermal energy, fusion energy, water and ocean energy, as well as biofuels derived from renewable energy sources and the energy generated by hydrogen. It can also be said that new energy includes all kinds of renewable energy and nuclear energy. Compared with traditional energy sources, new energy sources are generally characterized by less pollution and larger reserves, which are of great significance in solving the serious environmental pollution problem and the depletion of resources (especially fossil energy) in the world today. At the same time, since many new energy sources are evenly distributed, they are also of great significance in solving the wars triggered by energy. The world is predicting an accelerated decline in resources such as oil and coal. Nuclear energy and solar energy will soon become the main source of energy. New energy
The United Nations Development Program (UNDP) divided new energy into the following three categories: large and medium-sized hydropower; new renewable energy, including small-hydro (Small-hydro), solar energy (Solar), wind energy (Wind), modern biomass (Modern biomass), geothermal energy (Geothermal), ocean energy (Ocean) (tidal energy). Ocean) (tidal energy); Traditional biomass.
Solar energy Wind power Biomass Biodiesel Fuel ethanol New energy vehicles Fuel cells Hydrogen Waste-to-energy Building energy Geothermal energy Tidal energy Dimethyl ether Combustible ice, etc.
Question 8: What are the existing traditional energy sources in China? Urgent question ah ...... coal, oil, natural gas, hydro energy, wood
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