Search - Number 20 - SCIENTIFIC BASIS OF HYDROGEN SAFETY, RELIABILITY AND ENERGY EFFECIENCY NUCLEAR POWER PLANTS

SCIENTIFIC BASIS OF HYDROGEN SAFETY, RELIABILITY AND ENERGY EFFECIENCY NUCLEAR POWER PLANTS
Cover not present SCIENTIFIC BASIS OF HYDROGEN SAFETY, RELIABILITY AND ENERGY   EFFECIENCY NUCLEAR POWER PLANTS
Category: Number 20
Publication: 20
Summary

The basis of hydrogen safety, reliability and energy efficiency blocks and turbine building nuclear power plants are presented. The fundamentals of vision and strategy for nuclear security were developed. We have reported the main sources of hydrogen from nuclear power. Radiation-chemical formation of hydrogen in the coolant of the 1st contour (the radiolysis of the coolant; decomposition of hydrazine and ammonia, corrosion of stainless and carbon steel, steam radiolysis in the containtment), the high-temperature reaction of zirconium and steam, oxidation of the metal, CO effect. The compiled a list of possible admixtures that can get into the body of the generator, showed their influence on the purity and total mechanical losses. The main admixtures that get into the body of the generator are: water, turbine oil, oxygen, water-oil spray. Therehore, the increase the purity of the hydrogen in turbogenerators have reduces mechanical losses, such as losses due to friction of the rotor and the tie, friction losses in the bearings, the losses on ventilation. In conclusion, the ensure the cleanliness the hydrogen gas removal of admixtures or selective extraction of hydrogen gas is possibile of using metal hydrides.

Keywords: hydrogen safety, рrobabilistic safety analysis, the cooling system of the generator, cleanliness hy-drogen, the use of metal hydrides.

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