• Title/Summary/Keyword: Detritiation

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Fixed Bed Study for a Detritiation Adsorber

  • Kim K. R.;Lee M. S.;Paek S.;Yim S. P,;Ahn D. H.;Chung H.;Shim M. H.
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2005.11b
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    • pp.119-125
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    • 2005
  • A method of predicting the tritium concentration in the air leaving an atmospheric detritiation dryer was modeled for designing a fixed bed dryer and preparing an advanced dryer control. In order to quantify the bed utilization and the dynamic capacity against an inlet humidity and a flow rate, a series of quantitative tests based on the break-through behavior were carried out in an isothermal fixed bed of synthetic zeolites such type as molecular sieve 4A, 5A, 13X and mordenite. The amount of water vapor breaking during the adsorption was estimated to give a breakthrough capacity at the various inlet flow rates and humidity conditions. The molecular sieve 13X exhibited a better adsorption performance at a given bed height.

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Tritium Fuel Cycle of the International Thermonuclear Experimental Reactor (국제핵융합실험로 삼중수소 연료주기)

  • Song, Kyu-Min;Sohn, Soon Hwan;Chung, Hongsuk;Yun, Sei-Hun;Jung, Ki Jung
    • Korean Chemical Engineering Research
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    • v.50 no.4
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    • pp.595-603
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    • 2012
  • International Thermonuclear Experimental Reactor (ITER) will be constructed in 2019 according to the JIA (Joint Implementation Agreement) of 7 countries. The ITER fusion fuel cycle consists of fusion vacuum vessel, tritium plant and fuelling system. The tritium plant provides the functions of storage, delivery, separation, removal and recovery of the deuterium and tritium used as fusion fuels for the ITER. The tritium plant systems supply deuterium and tritium from external sources and treat all tritiated fluids from ITER operation through Storage and Delivery System (SDS), Tokamak Exhaust Processing (TEP), Isotope Separation System (ISS), Water Detritiation System & Atmosphere Detritiation System (WDS & ADS) and Analysis System (ANS). In this paper, the functions and design requirements of the major systems in the tritium plant and the status of R&D are described. Korean party is developing the SDS for ITER tritium plant and partially attaining the WDS technology through the construction and operation experience of the Wolsong Tritium Removal Facility (WTRF). Now it is expected that researchers in other fields such as chemical engineering take part in the development of upcoming technologies for ISS and TEP.

Tritium Fuel Cycle Technology of ITER Project (ITER 사업의 삼중수소 연료주기 기술)

  • Yun, Sei-Hun;Chang, Min-Ho;Kang, Hyun-Goo;Kim, Chang-Shuk;Cho, Seung-Yon;Jung, Ki-Jung;Chung, Hong-Suk;Song, Kyu-Min
    • Transactions of the Korean hydrogen and new energy society
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    • v.23 no.1
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    • pp.56-64
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    • 2012
  • The ITER fuel cycle is designed for DT operation in equimolar ratio. It involves not only a group of fuelling system and torus cryo-pumping system of the exhaust gases through the divertor from the torus in tokamak plant, but also from the exhaust gas processing of the fusion effluent gas mixture connected to the hydrogen isotope separation in cryogenic distillation to the final safe storage & delivery of the hydrogen isotopes in tritium plant. Tritium plant system supplies deuterium and tritium from external sources and treats all tritiated fluids in ITER operation. Every operation and affairs is focused on the tritium inventory accountancy and the confinement. This paper describes the major fuel cycle processes and interfaces in the tritium plant in aspects of upcoming technologies for future hydrogen and/or hydrogen isotope utilization.