Atomic energy: Also known as "nuclear energy". The energy released when the atomic nucleus changes. Such as heavy nuclear fission and light fusion when the release of the huge energy. Radioactive isotopes emit rays in health care, food preservation and other applications is also an important aspect of the application of atomic energy.
The reaction is a nuclear fission reaction.
Nuclear fission (Nuclear fission), also known as nuclear fission, is a change in which an atomic nucleus splits into several nuclei. It is a form of nuclear reaction in which heavy atoms, mainly uranium or plutonium, are split into lighter atoms.
Nuclear fission can only occur with some very high mass nuclei like uranium (yóu), thorium (tǔ), etc. The nucleus of these atoms in the absorption of a neutron will be split into two or more smaller atomic nuclei, while releasing two to three neutrons and a lot of energy, and can make other atomic nuclei followed by nuclear fission ......, so that the process continues, this process is called a chain reaction. Atomic nuclei in the occurrence of nuclear fission, the release of a huge amount of energy known as nuclear energy, commonly known as atomic energy. 1 kg of uranium-235 of all nuclear fission will produce 20,000 megawatt-hours of energy (enough to make 20 megawatts of power station operation for 1,000 hours), and the combustion of 3 million tons of coal release of the same amount of energy.
The high-energy neutrons released by nuclear fission move at such high speeds (fast neutrons) that they must be slowed down to increase their chances of hitting atoms while triggering more nuclear fission. Commercial nuclear reactors generally use moderators to slow down the high-energy neutrons into low-energy neutrons (thermal neutrons). Commercial nuclear reactors commonly use ordinary water, graphite, and the more expensive heavy water as moderators.
Nuclear fission is a change in which one atomic nucleus splits into several nuclei. Nuclear fission can occur only in some very high mass nuclei like uranium, thorium etc. The nuclei of these atoms will split into two or more smaller nuclei after absorbing a neutron, while releasing two to three neutrons and a lot of energy, and can make other nuclei then undergo nuclear fission ......, so that the process continues, this process is called a chain reaction. Atomic nuclei in the occurrence of nuclear fission, the release of a huge amount of energy known as atomic energy, commonly known as atomic energy. 1 gram of uranium 235 completely after the occurrence of nuclear fission released energy equivalent to the burning of 2.5 tons of coal produced by the energy. A more powerful nuclear weapon than the atomic bomb is the hydrogen bomb, which utilizes nuclear fusion to function. The process of nuclear fusion is the opposite of nuclear fission, a process in which several atomic nuclei are polymerized into a single nucleus. Only lighter nuclei can undergo nuclear fusion, such as deuterium and tritium, isotopes of hydrogen. Nuclear fusion also releases enormous amounts of energy, and more energy than nuclear fission. The process of fusion of hydrogen into helium goes on continuously inside the Sun, and its light and heat are produced by nuclear fusion.
Question 2: What do nuclear power plants use to generate electricity? It's mostly water, right? China has very few nuclear power plants (compared to the United States)? Or do they use coal? Vattp:/.... .ala0_1
Question 3: What energy is converted to what energy when a nuclear power plant generates electricity Nuclear energy for electricity
Question 4: What do nuclear power plants use to generate electricity? Thermonuclear fission, the release of heat, so that water into steam, high-pressure steam to make the turbine rotation, drive generators, thus generating electricity
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Question 5: nuclear power plants to generate electricity with what raw materials. General fissile nuclides are fine, like u235, u233, pu239 and so on. But the fast neutron reactors nowadays are converting nuclear waste like u238 into Pu239, which is then burned.
Question 6: How do nuclear power plants generate electricity? How does a nuclear power plant generate electricity? In short, it is a nuclear reactor to replace the thermal power plant boiler to nuclear fuel in the nuclear reactor in a special form of "combustion" to generate heat to heat the water into steam. The steam enters the turbine through the piping and drives the turbine generator to produce electricity. Generally speaking, the nuclear power plant turbine generator and electrical equipment and ordinary thermal power plants are similar, the mystery lies mainly in the nuclear reactor.
In addition to the key equipment of the nuclear power plant - nuclear reactor, there are many important equipment with which to cooperate. Pressurized water reactor nuclear power plants, for example, they are the main pump, regulator, steam generator, containment, turbine generator and critical cooling system. They have their own special functions in the nuclear power plant.
Main Pump If the coolant in the reactor is compared to human blood, then the main pump is the heart. Its function is to send the coolant into the reactor and then flow through the steam generator to ensure that the heat generated by the fission reaction is transferred out in time.
The pressure regulator, also known as the pressure equalizer, is a device used to control pressure changes in the reactor system. In normal operation, the role of maintaining pressure; in the event of an accident, to provide overpressure protection. The regulator is equipped with a heater and spray system, when the pressure in the reactor is too high, spray cold water to reduce the pressure; when the pressure in the reactor is too low, the heater is automatically energized and heated to make the water evaporate to increase the pressure.
Steam generator Its function is to transfer the heat from the coolant passing through the reactor to the secondary circuit water and turn it into steam, which is then passed into the cylinders of the turbine generator to do work.
Containment It is used to control and limit the spread of radioactive material out of the reactor to protect the public from radioactive material. In the unlikely event of a rare water loss from an escaping reactor circuit, the containment vessel is the last barrier to prevent the release of fission products into the surrounding area. The containment vessel is typically a pre-stressed concrete thick-walled vessel lined with steel plates.
Turbine generator nuclear power plant with a turbine generator in the structure and conventional thermal power plant with much the same, the difference is that due to the low steam pressure, turbine generator volume than the conventional thermal power plant.
Critical cooling system In order to cope with the occurrence of extreme water loss accidents in nuclear power plants with the rupture of a main circuit, modern nuclear power plants are equipped with a critical cooling system. It is composed of injection system and containment spray system. Once the extreme water loss accident is signaled, the safety injection system injects high-pressure boron-containing water into the reactor, and the sprinkler system sprays water and chemicals into the containment vessel. The consequences of the accident can then be mitigated and the spread of the accident can be limited.
Question 7: What is a nuclear power plant for. The nuclear energy released by the fission of atomic nuclei into electrical energy systems and equipment, usually called nuclear power plants also known as atomic power plants. The energy released by the fission process of nuclear fuel is circulated through the coolant in the reactor, which carries the energy out and transfers it to a boiler to generate steam to drive a turbine and a generator to produce electricity. A nuclear power plant is a high-energy, low-material-consumption power plant. Take a power station with a generating capacity of 1 million kilowatts as an example, if it burns coal, it needs to consume about 7,000 to 8,000 tons of coal per day, and more than 2 million tons per year. If a nuclear power plant is used instead, only 1.5 tons of fissionable uranium or plutonium are consumed each year, and a single change of material can be used for one year of continuous operation at full power. It can greatly reduce the transportation and storage problems of power plant fuel
Question 8: What are the benefits of using nuclear power? Nuclear power is a clean energy source, compared to thermal power, nuclear power does not produce SO2, NO, NO2 and other greenhouse gas Dan, slowing down the greenhouse effect and acid rain. Nuclear power has high energy density, low fuel consumption and is less affected by seasonal factors. Nuclear power can provide long-lasting energy, is an effective way to solve the energy problem of mankind
Question 9: What raw materials are used in nuclear power plants to generate electricity. General fissile nuclides are fine, like u235, u233, pu239 and so on. But nowadays, fast neutron reactors are converting nuclear waste like u238 into Pu239, which is then burned.
Question 10: What energy is converted to what energy when a nuclear power plant generates electricity Nuclear energy for electricity