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Passive decay heat removal for solid breeder blanket
https://repo.qst.go.jp/records/72312
https://repo.qst.go.jp/records/72312e2999c3f-0df3-4b1e-a3c8-3ed3abb5646d
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-04-28 | |||||
| タイトル | ||||||
| タイトル | Passive decay heat removal for solid breeder blanket | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
権, 暁星
× 権, 暁星× 谷川, 尚× 廣瀬, 貴規× 河村, 繕範× 権 暁星× 谷川 尚× 廣瀬 貴規× 河村 繕範 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Decay heat produced by neutron irradiation causes temperature rise of blanket under loss of cooling events. Temperature rise becomes large with increase of neutron wall loading (NWL). NWL is expected to increase in DEMO compared to ITER. The transient temperature response of solid breeder blanket was evaluated by using finite element method assuming loss of active cooling. Heat removal capability due to thermal conduction in blanket and radiation heat transfer were studied. Emissivity, thermal conductivity of pebble beds, and initial temperature of pebble beds were considered as parameters in the analyses. For the conditions studied in the present analyses, thermal conductivity of the pebble beds was dominant among the parameters. A cooling method with natural convection of helium gas in vacuum vessel was also investigated to mitigate the excessive temperature rise of the blanket. The helium cooling method might be promising to reduce the maximum temperature of the blanket. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 29th Symposium on Fusion Technology | |||||
| 発表年月日 | ||||||
| 日付 | 2016-09-07 | |||||
| 日付タイプ | Issued | |||||
