Abstract
This report describes design, fabrication and performance test of heating and cooling system of JT-60 vacuum vessel. The vacuum vessel was designed to be bakable up to 500°C by electric heaters as a means of ultra-high vacuum treatments, and was required to be cooled down by water or nitrogen gas. Results of the on-site baking test after assembly of the machine showed that the design requirements for the maximum temperature, temperature difference, heating time, ultimate vacuum and outgassing rate were satisfied, and no leaks were detected with helium leak testing. It was also found that the slide mechanism for thermal expansion during the heating-up and cooling-down phase functioned satisfactorily.
| Original language | English |
|---|---|
| Pages (from-to) | 1108-1115 |
| Number of pages | 8 |
| Journal | Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan |
| Volume | 29 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1987 |
| Externally published | Yes |
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Keywords
- baking
- cooling
- cooling system
- heat transfer
- JT-60 tokamak
- performance testing
- thermonuclear reactor cooling
- ultimate pressure
- ultrahigh vacuum
- vacuum vessel
ASJC Scopus subject areas
- Nuclear Energy and Engineering
Cite this
Design, Fabrication and Performance Test of Heating and Cooling System of JT-60 Vacuum Vessel. / Shimizu, Masatsugu; Akino, Noboru; Yamamoto, Masahiro; Takatsu, Hideyuki; Ohkubo, Minoru; Ando, Toshiro; Ohta, Mitsuru; Shimizu, Tohru; Kajiura, Soji; Matsumoto, Kiyoshi.
In: Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, Vol. 29, No. 12, 1987, p. 1108-1115.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Design, Fabrication and Performance Test of Heating and Cooling System of JT-60 Vacuum Vessel
AU - Shimizu, Masatsugu
AU - Akino, Noboru
AU - Yamamoto, Masahiro
AU - Takatsu, Hideyuki
AU - Ohkubo, Minoru
AU - Ando, Toshiro
AU - Ohta, Mitsuru
AU - Shimizu, Tohru
AU - Kajiura, Soji
AU - Matsumoto, Kiyoshi
PY - 1987
Y1 - 1987
N2 - This report describes design, fabrication and performance test of heating and cooling system of JT-60 vacuum vessel. The vacuum vessel was designed to be bakable up to 500°C by electric heaters as a means of ultra-high vacuum treatments, and was required to be cooled down by water or nitrogen gas. Results of the on-site baking test after assembly of the machine showed that the design requirements for the maximum temperature, temperature difference, heating time, ultimate vacuum and outgassing rate were satisfied, and no leaks were detected with helium leak testing. It was also found that the slide mechanism for thermal expansion during the heating-up and cooling-down phase functioned satisfactorily.
AB - This report describes design, fabrication and performance test of heating and cooling system of JT-60 vacuum vessel. The vacuum vessel was designed to be bakable up to 500°C by electric heaters as a means of ultra-high vacuum treatments, and was required to be cooled down by water or nitrogen gas. Results of the on-site baking test after assembly of the machine showed that the design requirements for the maximum temperature, temperature difference, heating time, ultimate vacuum and outgassing rate were satisfied, and no leaks were detected with helium leak testing. It was also found that the slide mechanism for thermal expansion during the heating-up and cooling-down phase functioned satisfactorily.
KW - baking
KW - cooling
KW - cooling system
KW - heat transfer
KW - JT-60 tokamak
KW - performance testing
KW - thermonuclear reactor cooling
KW - ultimate pressure
KW - ultrahigh vacuum
KW - vacuum vessel
UR - http://www.scopus.com/inward/record.url?scp=0023581062&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023581062&partnerID=8YFLogxK
U2 - 10.3327/jaesj.29.1108
DO - 10.3327/jaesj.29.1108
M3 - Article
AN - SCOPUS:0023581062
VL - 29
SP - 1108
EP - 1115
JO - Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan
JF - Nippon Genshiryoku Gakkaishi/Journal of the Atomic Energy Society of Japan
SN - 0004-7120
IS - 12
ER -