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33 巻, 11 号
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冨増 多喜夫, 田中 隆一, 谷川 庄一郎, 小無 健司, 水本 元治, 山崎 鉄夫1991 年 33 巻 11 号 p. 1016-1048
発行日: 1991/11/30
公開日: 2010/01/08
ジャーナル フリーPDF形式でダウンロード (18823K) -
下田 秀雄, 飯村 秀文, 黒田 輝夫1991 年 33 巻 11 号 p. 1049-1056
発行日: 1991/11/30
公開日: 2011/02/17
ジャーナル フリーPDF形式でダウンロード (7960K) -
村山 衛, 高橋 忠男, 大森 康民, 和泉 啓, 山口 修, 中村 邦彦, 熊岡 祥雄, 中尾 昇, 松田 昌迪, 清川 輝行1991 年 33 巻 11 号 p. 1062-1074
発行日: 1991/11/30
公開日: 2011/02/17
ジャーナル フリーA Japanese prototype fast breeder reactor "MONJU" is a 280 MWe loop-type, sodium-cooled fast breeder reactor (FBR) with U-Pu mixed oxide fuel.
The MONJU development program has been carried out as a national project by Power Reactor and Nuclear Fuel Development Corporation (PNC), in collaboration with the government, universities and the private sectors including utilities and manufacturers. The program aims to develop an intermediate-scale precursor to a commercial reactor and to get experience with a power generating FBR.
The construction work began in October 1985, and completed on schedule in April 1991 with no significant problem. The pre-operational tests are presently underway.
The present report describes the MONJU plant including the main features of its subsystems and components. Some aspects of design, fabrication and construction work are also discussed.抄録全体を表示PDF形式でダウンロード (17745K) -
柴沼 清, 栗山 正明, 柴田 猛順1991 年 33 巻 11 号 p. 1083-1095
発行日: 1991/11/30
公開日: 2011/02/17
ジャーナル フリーFor a multi-layer insulator around the liquid helium pipes for cryopumps of JT-60 NBI, a multi-layer insulator composed of 10 layers, which can be wound around the pipe at the same time and in which the respective layers are in concentric circles by shifting them in arrangement, has been developed and tested. As the result, it was shown that the newly developed multi-layer insulator has better thermal insulation performance than the existing one, i.e. the heat load of the newly developed insulator composed of 10 layers was reduced to 1/3 the heat load of the existing insulator, and the heat leak at the joint of the insulator in longitudinal direction of the pipe was negligible.
In order to clarify thermal characteristics of the multi-layer insulator, the heat transfer through the insulator has been analyzed considering the radiation heat transfer by the netting spacer between the reflectors, and the temperature dependence on the emissivities and the heat transmission coefficients of these two components of the insulator. The analytical results were in good agreements with the experimental ones, so that the analytical method was shown to be valid. Concerning the influence of the number of layers and the layer density on the insulation performance of the insulator, analytical results showed that the multi-layer insulator with the number of layers about N=20 and the layer density below 2.0 layer/mm was the most effective for the liquid helium pipe of a JT-60 cryopump.抄録全体を表示PDF形式でダウンロード (3212K)
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