Subjects: Nuclear Science and Technology >> Other Disciplines of Nuclear Science submitted time 2024-07-23
Abstract： In order to mitigate climate warming and achieve the 3060 goal, the state optimizes the industrial and energy structure，New energy is vigorously developed. On the premise of ensuring safety, the nuclear power is actively and orderly expanded. Compared with traditional fossil energy, nuclear power has the advantage of clean and environmental protection. However, the actual thermal efficiency of nuclear power plant is only about 33%. The rest heat of water drainage is discharged into the adjacent sea area and its heat has a thermal impact on the water environment. Therefore, the efficient utilization of thermal discharge residual heat can not only improve the energy utilization rate of nuclear power plants, Achieve energy conservation and emission reduction, and reduce the thermal pollution to the water environment. Through the development of a nuclear agriculture coupling scheme, the waste heat of the warm drainage of nuclear power plants can be fully utilized in the fields of agriculture and fishery to improve economic benefits. In this paper, APROS software is used to simulate and analyze a comprehensive system for increasing temperature and production of greenhouse and indoor marine culture by using nuclear residual heat, dynamically analyze the energy consumption levels in greenhouses and fish ponds. The possibility of nuclear power and agricultural coupling system is demonstrated, which provides a scientific basis for the comprehensive utilization and exploitation of nuclear residual heat.
Subjects: Nuclear Science and Technology >> Nuclear Science and Technology submitted time 2024-07-04
Abstract： Under severe Ocean environment, the liquid level inside the in-vessel pressurizer will fluctuate greatly, threatening the safe operation of the reactor. To study the response characteristics of the liquid level inside the in-vessel pressurizer under severe ocean conditions, the fluctuation forms of the liquid level pressure under various motion forms are analyzed by means of experiments. The results show that the swinging motion affects the pressure signal because the linear distance between the liquid surface and the measuring point changes during the swinging process. The swaying(surging) motion that influence the pressure measurement are derived from the tendency that the fluid will periodically impact the wall and liquid surface due to inertia. The influence of heaving motion on pressure measurement mainly comes from the acceleration change in the vertical direction, which periodically causes the phenomenon of weightlessness.
Subjects: Nuclear Science and Technology >> Other Disciplines of Nuclear Science submitted time 2024-06-06
Abstract： In order to mitigate climate warming and achieve the 3060 goal, the state optimizes the industrial and energy structure. The efficient and clean utilization of coal is promoted and new energy is vigorously developed. On the premise of ensuring safety, nuclear power is actively and orderly expanded. Compared with traditional fossil energy, nuclear power has the advantage of clean, environmental protection and low consumption. However, the actual thermal efficiency of nuclear power plant is only about 33%. The rest heat is discharged into the environment, resulting in serious waste. Among them, the thermal discharge is discharged into the adjacent sea area and its heat has a thermal impact on the water environment. Therefore, the efficient utilization of thermal discharge residual heat can not only improve the energy utilization rate of nuclear power plants, but also reduce the thermal pollution to the water environment, which is conductive to energy conservation and emission reduction. In this paper, APROS software is used to simulate and analyze a comprehensive system for increasing temperature and production of greenhouse and indoor marine culture by using nuclear residual heat. The possibility of nuclear power and agricultural coupling system is demonstrated, which provides a scientific basis for the comprehensive utilization of nuclear residual heat in China.
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