Experimental clarification of the desorption of H2, D 2 and He mixtures from cryosorption pumps

Masashi Terashita; Satoshi Fukada

doi:10.1016/j.jnucmat.2010.12.296

Experimental clarification of the desorption of H₂, D ₂ and He mixtures from cryosorption pumps

Masashi Terashita, Satoshi Fukada

Engineering Science for Advanced energy system

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The behavior of dynamic desorption of He, H₂ and D₂ from a cryosorption pump is experimentally investigated for simplified rough separation of D-T fuel exhaust from impurities. As a fundamental study to separate the unburned D-T fuel and impurities dynamically, the discharge rates of H₂ and D₂ (as a representative of T₂), He (as a major impurity) are determined as a function of time and temperature, when the cryosorption pump is regenerated from 10 K to the room temperature of 285-305 K. The release behavior of H₂ and D₂ is compared, and the desorption isotherms of H₂, D₂ and He for activated carbon used in the cryosorption pump are determined from their respective discharge curves. The present result may lead to provide a simplified technique to decrease the throughput of the following fuel purification system and to decrease the tritium inventory by rapid separation of the D-T fuel from impurities.

Original language	English
Pages (from-to)	1179-1182
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	417
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2010.12.296
Publication status	Published - Oct 1 2011

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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title = "Experimental clarification of the desorption of H2, D 2 and He mixtures from cryosorption pumps",

abstract = "The behavior of dynamic desorption of He, H2 and D2 from a cryosorption pump is experimentally investigated for simplified rough separation of D-T fuel exhaust from impurities. As a fundamental study to separate the unburned D-T fuel and impurities dynamically, the discharge rates of H2 and D2 (as a representative of T2), He (as a major impurity) are determined as a function of time and temperature, when the cryosorption pump is regenerated from 10 K to the room temperature of 285-305 K. The release behavior of H2 and D2 is compared, and the desorption isotherms of H2, D2 and He for activated carbon used in the cryosorption pump are determined from their respective discharge curves. The present result may lead to provide a simplified technique to decrease the throughput of the following fuel purification system and to decrease the tritium inventory by rapid separation of the D-T fuel from impurities.",

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N2 - The behavior of dynamic desorption of He, H2 and D2 from a cryosorption pump is experimentally investigated for simplified rough separation of D-T fuel exhaust from impurities. As a fundamental study to separate the unburned D-T fuel and impurities dynamically, the discharge rates of H2 and D2 (as a representative of T2), He (as a major impurity) are determined as a function of time and temperature, when the cryosorption pump is regenerated from 10 K to the room temperature of 285-305 K. The release behavior of H2 and D2 is compared, and the desorption isotherms of H2, D2 and He for activated carbon used in the cryosorption pump are determined from their respective discharge curves. The present result may lead to provide a simplified technique to decrease the throughput of the following fuel purification system and to decrease the tritium inventory by rapid separation of the D-T fuel from impurities.

AB - The behavior of dynamic desorption of He, H2 and D2 from a cryosorption pump is experimentally investigated for simplified rough separation of D-T fuel exhaust from impurities. As a fundamental study to separate the unburned D-T fuel and impurities dynamically, the discharge rates of H2 and D2 (as a representative of T2), He (as a major impurity) are determined as a function of time and temperature, when the cryosorption pump is regenerated from 10 K to the room temperature of 285-305 K. The release behavior of H2 and D2 is compared, and the desorption isotherms of H2, D2 and He for activated carbon used in the cryosorption pump are determined from their respective discharge curves. The present result may lead to provide a simplified technique to decrease the throughput of the following fuel purification system and to decrease the tritium inventory by rapid separation of the D-T fuel from impurities.

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