WEKO3
アイテム
{"_buckets": {"deposit": "143f9827-4e26-4841-83de-582920ba2a1d"}, "_deposit": {"created_by": 1, "id": "48656", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "48656"}, "status": "published"}, "_oai": {"id": "oai:repo.qst.go.jp:00048656", "sets": ["1"]}, "author_link": ["489385", "489397", "489403", "489398", "489400", "489394", "489395", "489399", "489387", "489392", "489401", "489384", "489389", "489396", "489388", "489381", "489393", "489380", "489386", "489402", "489390", "489383", "489391", "489382"], "item_8_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2017-10", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "12", "bibliographicPageEnd": "126050-12", "bibliographicPageStart": "126050-1", "bibliographicVolumeNumber": "57", "bibliographic_titles": [{"bibliographic_title": "Nuclear Fusion"}]}]}, "item_8_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Power exhaust to the divertor and the conceptual design have been investigated for a steady-state DEMO in Japan with 1.5 GW-level fusion power and the major radius of 8.5 m, where the plasma parameters were revised appropriate for the impurity seeding scenario. A system code survey for the Ar impurity seeding suggested the volume-averaged density, impurity concentration and exhaust power from the main plasma of Psep = 205-285 MW. The divertor plasma simulation (SONIC) was performed in the divertor leg length of 1.6 m with the fixed exhaust power to the edge of Pout = 250MW and the total radiation fraction at the edge, SOL and divertor (Prad/Pout = 0.8), as a first step to investigate appropriate design of the divertor size and geometry. At the outer target, partial detachment was produced near the strike-point, and the peak heat load (qtarget) at the attached region was reduced to ~5 MWm-2 with appropriate fuel and impurity puff rates. At the inner divertor target, full detachment of ion flux was produced and the peak qtarget was less than 10 MWm-2 mostly due to the surface-recombination. These results showed a power exhaust scenario and the divertor design concept. An integrated design of the water-cooling heat sink for the long leg divertor was proposed. Cu-ally (CuCrZr) cooling pipe was applicable as the heat sink to handle the high heat flux near the strike-point, where displacements per atom rate was estimated to be 0.5-1.5 per year by neutronics calculation. An arrangement of the coolant rooting for Cu-alloy and Reduced Activation Ferritic Martensitic (RAFM) steel (F82H) pipes in a divertor cassette was investigated, and the heat transport analysis of the W-monoblock and Cu-alloy pipe under the peak qtarget of 10 MWm-2 and nuclear heating was performed. The maximum temperatures on the W-surface and Cu-alloy pipe were 1021 and 331C. Heat flux of 16 MWm-2 was distributed in the major part of the coolant pipe. These results were acceptable for the plasma facing and structural materials. ", "subitem_description_type": "Abstract"}]}, "item_8_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "IOP Publishing"}]}, "item_8_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1088/1741-4326/aa867a", "subitem_relation_type_select": "DOI"}}]}, "item_8_relation_17": {"attribute_name": "関連サイト", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "https://doi.org/10.1088/1741-4326/aa867a"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1088/1741-4326/aa867a", "subitem_relation_type_select": "DOI"}}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "metadata only access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_14cb"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "朝倉, 伸幸"}], "nameIdentifiers": [{"nameIdentifier": "489380", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "星野, 一生"}], "nameIdentifiers": [{"nameIdentifier": "489381", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "鈴木, 哲"}], "nameIdentifiers": [{"nameIdentifier": "489382", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "徳永, 晋介"}], "nameIdentifiers": [{"nameIdentifier": "489383", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "染谷, 洋二"}], "nameIdentifiers": [{"nameIdentifier": "489384", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "宇藤, 裕康"}], "nameIdentifiers": [{"nameIdentifier": "489385", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "工藤, 広信"}], "nameIdentifiers": [{"nameIdentifier": "489386", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "坂本, 宜照"}], "nameIdentifiers": [{"nameIdentifier": "489387", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "日渡, 良爾"}], "nameIdentifiers": [{"nameIdentifier": "489388", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "飛田, 健次"}], "nameIdentifiers": [{"nameIdentifier": "489389", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "清水, 勝宏"}], "nameIdentifiers": [{"nameIdentifier": "489390", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "江里, 幸一郎"}], "nameIdentifiers": [{"nameIdentifier": "489391", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "大野, 哲靖"}], "nameIdentifiers": [{"nameIdentifier": "489392", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "上田, 良夫"}], "nameIdentifiers": [{"nameIdentifier": "489393", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "朝倉 伸幸", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489394", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "星野 一生", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489395", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "鈴木 哲", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489396", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "徳永 晋介", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489397", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "染谷 洋二", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489398", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "宇藤 裕康", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489399", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "工藤 広信", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489400", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "坂本 宜照", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489401", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "日渡 良爾", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489402", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "飛田 健次", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "489403", "nameIdentifierScheme": "WEKO"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Studies of Power Exhaust and Divertor Design for a 1.5 GW-level Fusion Power DEMO ", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Studies of Power Exhaust and Divertor Design for a 1.5 GW-level Fusion Power DEMO "}]}, "item_type_id": "8", "owner": "1", "path": ["1"], "permalink_uri": "https://repo.qst.go.jp/records/48656", "pubdate": {"attribute_name": "公開日", "attribute_value": "2018-03-28"}, "publish_date": "2018-03-28", "publish_status": "0", "recid": "48656", "relation": {}, "relation_version_is_last": true, "title": ["Studies of Power Exhaust and Divertor Design for a 1.5 GW-level Fusion Power DEMO "], "weko_shared_id": -1}
Studies of Power Exhaust and Divertor Design for a 1.5 GW-level Fusion Power DEMO
https://repo.qst.go.jp/records/48656
https://repo.qst.go.jp/records/486562995aac8-70ba-4c96-a60e-a751b1fb45cc
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2018-03-28 | |||||
タイトル | ||||||
タイトル | Studies of Power Exhaust and Divertor Design for a 1.5 GW-level Fusion Power DEMO | |||||
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_6501 | |||||
資源タイプ | journal article | |||||
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 |
朝倉, 伸幸
× 朝倉, 伸幸× 星野, 一生× 鈴木, 哲× 徳永, 晋介× 染谷, 洋二× 宇藤, 裕康× 工藤, 広信× 坂本, 宜照× 日渡, 良爾× 飛田, 健次× 清水, 勝宏× 江里, 幸一郎× 大野, 哲靖× 上田, 良夫× 朝倉 伸幸× 星野 一生× 鈴木 哲× 徳永 晋介× 染谷 洋二× 宇藤 裕康× 工藤 広信× 坂本 宜照× 日渡 良爾× 飛田 健次 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Power exhaust to the divertor and the conceptual design have been investigated for a steady-state DEMO in Japan with 1.5 GW-level fusion power and the major radius of 8.5 m, where the plasma parameters were revised appropriate for the impurity seeding scenario. A system code survey for the Ar impurity seeding suggested the volume-averaged density, impurity concentration and exhaust power from the main plasma of Psep = 205-285 MW. The divertor plasma simulation (SONIC) was performed in the divertor leg length of 1.6 m with the fixed exhaust power to the edge of Pout = 250MW and the total radiation fraction at the edge, SOL and divertor (Prad/Pout = 0.8), as a first step to investigate appropriate design of the divertor size and geometry. At the outer target, partial detachment was produced near the strike-point, and the peak heat load (qtarget) at the attached region was reduced to ~5 MWm-2 with appropriate fuel and impurity puff rates. At the inner divertor target, full detachment of ion flux was produced and the peak qtarget was less than 10 MWm-2 mostly due to the surface-recombination. These results showed a power exhaust scenario and the divertor design concept. An integrated design of the water-cooling heat sink for the long leg divertor was proposed. Cu-ally (CuCrZr) cooling pipe was applicable as the heat sink to handle the high heat flux near the strike-point, where displacements per atom rate was estimated to be 0.5-1.5 per year by neutronics calculation. An arrangement of the coolant rooting for Cu-alloy and Reduced Activation Ferritic Martensitic (RAFM) steel (F82H) pipes in a divertor cassette was investigated, and the heat transport analysis of the W-monoblock and Cu-alloy pipe under the peak qtarget of 10 MWm-2 and nuclear heating was performed. The maximum temperatures on the W-surface and Cu-alloy pipe were 1021 and 331C. Heat flux of 16 MWm-2 was distributed in the major part of the coolant pipe. These results were acceptable for the plasma facing and structural materials. | |||||
書誌情報 |
Nuclear Fusion 巻 57, 号 12, p. 126050-1-126050-12, 発行日 2017-10 |
|||||
出版者 | ||||||
出版者 | IOP Publishing | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/1741-4326/aa867a | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/aa867a | |||||
関連名称 | https://doi.org/10.1088/1741-4326/aa867a |