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Introduction to Nuclear Reactor
- Categories:Nuclear power knowledge
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- Time of issue:2012-08-28
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(Summary description)A nuclear reactor refers to a device that can produce a self-sustained fission reaction in a controlled manner. Since the fissile material is uranium-235 or plutonium-239, the fissile particles are neutrons, and the material that controls the number of neutrons is boron, hafnium or silver-indium-cadmium alloy. Silver, indium, cadmium alloys have a strong ability to absorb neutrons, so it is different from nuclear weapons. Through various control methods, the huge energy of nuclear fission can be released slowly, balancedly and controllably.
Introduction to Nuclear Reactor
(Summary description)A nuclear reactor refers to a device that can produce a self-sustained fission reaction in a controlled manner. Since the fissile material is uranium-235 or plutonium-239, the fissile particles are neutrons, and the material that controls the number of neutrons is boron, hafnium or silver-indium-cadmium alloy. Silver, indium, cadmium alloys have a strong ability to absorb neutrons, so it is different from nuclear weapons. Through various control methods, the huge energy of nuclear fission can be released slowly, balancedly and controllably.
- Categories:Nuclear power knowledge
- Author:
- Origin:
- Time of issue:2012-08-28 13:10
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Information
Nuclear reactor refers to a device that can produce a self-sustained fission reaction in a controlled manner. Since the fissile material is uranium-235 or plutonium-239, the fissile particles are neutrons, and the material that controls the number of neutrons is boron, hafnium or silver-indium-cadmium alloy. Silver, indium, cadmium alloys have a strong ability to absorb neutrons. Therefore, unlike nuclear weapons, they can release the huge energy of nuclear fission in a slow, balanced and controllable manner through various control methods.
Characteristics of nuclear power generation:
1. High energy, less material consumption
Nuclear energy is millions of times larger than chemical energy.
One kilogram of uranium fission energy is equivalent to 2500 tons of high-quality coal.
A 600,000 kilowatt nuclear power plant burns only 3 kilograms of uranium-235 every day.
The thermal power plant of the same size consumes about 8,000 tons of coal every day.
High energy, less material consumption, greatly reducing fuel transportation and storage in power stations.
2. Nuclear power plant is still a special nuclear fuel production plant
The nuclear fuel is in the reactor and part of it is burned.
At the same time, it converts uranium-238 or thorium-232 into plutonium-239
Or uranium-233 new fissile nuclear fuel.
After recycling, it can be reused in nuclear power plants.
It is sustainable energy.
3. The cost of power generation is already lower than that of thermal power.
The fuel cost of nuclear power accounts for 30-40%.
The fuel cost of thermal power accounts for 60-70%.
Conducive to the reduction of power generation costs.
The cost of nuclear power in the world has been lower than the cost of desulfurized thermal power.
4. Safe and reliable clean energy
Nuclear power plants have set up three reliable barriers to radioactivity, nuclear power plants have established a complete set of radioactive waste treatment facilities, and nuclear power plants have installed engineering safety facilities to deal with possible accidents. The total radioactive emission dose of nuclear power is about 1.2×10-11 microsv/kWh. The total emission dose of the power plant is about 3.52×10-11 microsv/kWh. Coal power plants emit hundreds of tons of harmful sulfur dioxide gas every day, and nuclear power is a clean power station.
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At the meeting, General Manager Zhao Jiangang stressed that since the "3.21" accident, the government's development strategy has been adjusted, and the enterprise's regulatory standards are more stringent. All departments of the company should pay attention to it and study how to deal with the relevant measures. Taking the "3.21" accident as an opportunity, we will study the measures and action items to improve and upgrade the company's management level in an all-round way.
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