The Proceedings of the International Conference on Nuclear Engineering (ICONE)
Online ISSN : 2424-2934
2023.30
Session ID : 1685
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ADVANCED RADIOACTIVE MATERIAL REMOVAL SYSTEM USING SILVER ZEOLITE:
(1) RISK REDUCTION AND PROMOTION OF RESTART NPPS THROUGH THE ADVANCED FCVS
Tadashi NarabayashiTran Tri VienHiroshige KikuraKatsumasa AraokaKoji EndoTomohiko YoshiiSanshiro KobayashiNobuyoshi Hamada
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Abstract

A Based on the advanced FCVS technology, such as a gas-liquid mixing nozzle and a multi-layer metal fiber filter, and a silver zeolite filter for the purpose of removing organic iodine. we have developed a demonstration machine for a large-capacity air purification system that purifies a large amount of contaminated air. With this acceleration and centrifugal force field of water, almost all of the fine particles in the bubbles can be transferred to the liquid phase water and dissolved. We have developed a demonstration machine of an air purification system that can remove fine particles and viruses in the air of 100 m3/h with a single nozzle and we also developed a large-capacity air purification system that can purify 2400 m3 of air per hour with 24 nozzles. The FCVS system, which is high-performance and passively activated by using SRV, is thought to help eliminate obvious infringement of personality rights, avoid litigation outages, and promote public acceptance for nuclear power to restart. As a result of PRA, the loss of decay heat sequence called "TW" is reduced from 2.9x10-6 to 3.8x10-9. The total core damage frequency will be reduced almost 1/1000.

In this way, the merits of installing FCVS are great, increasing public safety, security and acceptance of nuclear power plants, increasing the corporate value of companies that operate nuclear power plants, and contributing to global environmental sustainability.

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© 2023 The Japan Society of Mechanical Engineers
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