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Design concept of a cryogenic distillation column cascade for a ITER scale fusion reactor

Technical Report:

Abstract

A column cascade has been proposed for the fuel cycle of a ITER scale fusion reactor. The proposed cascade consists of three columns and has significant features: either top or bottom product is prior to the other for each column: it is avoided to withdraw side streams as products or feeds of down stream columns: and there is no recycle steam between the columns. In addition, the product purity of the cascade can be maintained against the changes of flow rates and compositions of feed streams just by adjusting the top and bottom flow rates. The control system has been designed for each column in the cascade. A key component in the prior product stream was selected, and the analysis method of this key component was proposed. The designed control system never brings instability as long as the concentration of the key component is measured with negligible time lag. The time lag for the measurement considerably affects the stability of the control system. A significant conclusion by the simulation in this work is that permissible time for the measurement is about 0.5 hour to obtain stable control. Hence, the analysis system using the gas chromatography is valid for control of  More>>
Authors:
Yamanishi, Toshihiko; Enoeda, Mikio; Okuno, Kenji [1] 
  1. Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment
Publication Date:
Jul 01, 1994
Product Type:
Technical Report
Report Number:
JAERI-Tech-94-011
Reference Number:
SCA: 700460; PA: JPN-94:012093; EDB-95:026570; SN: 95001319901
Resource Relation:
Other Information: PBD: Jul 1994
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ITER TOKAMAK; TRITIUM EXTRACTION PLANTS; EXTRACTION COLUMNS; TRITIUM RECOVERY; FUEL CYCLE; TRITIUM; COLUMN PACKING; CRYOGENICS; D-T REACTORS; BREEDING BLANKETS; ISOTOPE SEPARATION; HYDROGEN; 700460; HEATING AND FUELING SYSTEMS; FUELS
OSTI ID:
10109239
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE95737185; TRN: JP9412093
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
37 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Yamanishi, Toshihiko, Enoeda, Mikio, and Okuno, Kenji. Design concept of a cryogenic distillation column cascade for a ITER scale fusion reactor. Japan: N. p., 1994. Web.
Yamanishi, Toshihiko, Enoeda, Mikio, & Okuno, Kenji. Design concept of a cryogenic distillation column cascade for a ITER scale fusion reactor. Japan.
Yamanishi, Toshihiko, Enoeda, Mikio, and Okuno, Kenji. 1994. "Design concept of a cryogenic distillation column cascade for a ITER scale fusion reactor." Japan.
@misc{etde_10109239,
title = {Design concept of a cryogenic distillation column cascade for a ITER scale fusion reactor}
author = {Yamanishi, Toshihiko, Enoeda, Mikio, and Okuno, Kenji}
abstractNote = {A column cascade has been proposed for the fuel cycle of a ITER scale fusion reactor. The proposed cascade consists of three columns and has significant features: either top or bottom product is prior to the other for each column: it is avoided to withdraw side streams as products or feeds of down stream columns: and there is no recycle steam between the columns. In addition, the product purity of the cascade can be maintained against the changes of flow rates and compositions of feed streams just by adjusting the top and bottom flow rates. The control system has been designed for each column in the cascade. A key component in the prior product stream was selected, and the analysis method of this key component was proposed. The designed control system never brings instability as long as the concentration of the key component is measured with negligible time lag. The time lag for the measurement considerably affects the stability of the control system. A significant conclusion by the simulation in this work is that permissible time for the measurement is about 0.5 hour to obtain stable control. Hence, the analysis system using the gas chromatography is valid for control of the columns. (author).}
place = {Japan}
year = {1994}
month = {Jul}
}