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ロボット試験用水槽の温度挙動に及ぼす影響因子

Influence factors on temperature behavior of robot test pool

荒川 了紀; 野崎 信久

Arakawa, Ryoki; Nosaki, Nobuhisa

楢葉遠隔技術開発センターは、東京電力ホールディングス福島第一原子力発電所(1F)の事故後の廃炉作業に向けて必要となる各種試験設備を設置し、外部利用を受け入れている。試験設備のうち、水中ロボットの試験用水槽は、室温から60$$^{circ}$$Cまで昇温させた温度条件下で試験が可能な設備となっている。この試験用水槽の温度上昇挙動を把握するため、室温から60$$^{circ}$$C(最高設定温度)まで昇温させる試験を行い、データを取得した。そこで、開発した評価法を用いて、昇温時, 一定温度保持時(試験時)及び降温時における温度挙動に及ぼす流量, 湿度などの様々な因子の影響を調べ、試験用水槽の温度特性を解析的に明らかにするとともに、合理的な運用方法を提案した。本報告は、昇温時, 一定温度保持時及び降温時の解析的検討結果についてまとめたものである。

The Naraha Center for Remote Control Technology Development has various test facilities for the decommissioning work after the accident of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, and is now promoting external use. In the test facilities, the robot test pool for the underwater robot can be used in different temperature conditions from room temperature to 60$$^{circ}$$C, maximum setting temperature. In order to clarify the temperature behavior in heating condition, a heating test from room temperature to 60$$^{circ}$$C was performed. The data was obtained this way. From the data, a heat transfer model for evaluating the temperature behavior was investigated, and the temperature evaluation method for the robot test pool was developed. By using the developed evaluation method, the influence of various factors such as flow rate and humidity on the temperature behavior was investigated for the condition of temperature heating, holding (test condition) and cooling. From the investigation, the temperature behavior of the robot test pool was analytically clarified, and a reasonable operation method was proposed. This report summarizes the results of analytical study at the temperature heating, holding and cooling condition.

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