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Achievement of reactor-outlet coolant temperature of 950$$^{circ}$$C in HTTR

HTTRにおける原子炉出口冷却材温度950$$^{circ}$$Cの達成

藤川 正剛; 林 秀行; 中澤 利雄; 川崎 幸三; 伊与久 達夫; 中川 繁昭; 坂場 成昭

Fujikawa, Seigo; Hayashi, Hideyuki; Nakazawa, Toshio; Kawasaki, Kozo; Iyoku, Tatsuo; Nakagawa, Shigeaki; Sakaba, Nariaki

日本初の高温ガス炉HTTRは、2004年4月19日に最大熱出力30MWで、原子炉出口冷却材(ヘリウムガス)温度950$$^{circ}$$Cを達成した。出力上昇試験の最終段階として実施された高温試験運転では、原子炉の特性及び性能が確認され、また安全,安定運転のための種々の運転データが蓄積された。原子炉出口冷却材温度950$$^{circ}$$Cの達成により、高温ガスタービンによる高効率発電が可能になるとともに、水を原料とした水素製造に十分な温度を達成したこととなり、原子力の非電力分野での利用の可能性が広がったことになる。今回の成功により、高温ガス炉を用いた水からの水素製造の実現に向けて大きく前進した。本報は、HTTRの高温試験運転の試験結果について述べたものである。

A High Temperature Gas-cooled Reactor (HTGR) is particularly attractive due to its capability of producing high-temperature helium gas and to its inherent safety characteristics. The High Temperature Engineering Test Reactor (HTTR), which is the first HTGR in Japan, achieved its rated thermal power of 30MW and reactor-outlet coolant temperature of 950$$^{circ}$$C on 19 April 2004. During the high-temperature test operation which is the final phase of the rise-to-power tests, reactor characteristics and reactor performance were confirmed, and reactor operations were monitored to demonstrate the safety and stability of operation. The reactor-outlet coolant temperature of 950$$^{circ}$$C makes it possible to extend high-temperature gas-cooled reactor use beyond the field of electric power. Also, highly effective power generation with a high-temperature gas turbine becomes possible, as does hydrogen production from water. The achievement of 950$$^{circ}$$C will be a major contribution to the actualization of producing hydrogen from water using the high-temperature gas-cooled reactors. This report describes the results of the high-temperature test operation of the HTTR.

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パーセンタイル:2.59

分野:Nuclear Science & Technology

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