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JAEA Reports

Influence factors on temperature behavior of robot test pool

Arakawa, Ryoki; Nosaki, Nobuhisa

JAEA-Technology 2019-018, 157 Pages, 2020/03

JAEA-Technology-2019-018.pdf:12.97MB

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.

Journal Articles

Fukushima Daiichi decommissioning and Fukushima remediation, 1

Noda, Koichi; Nosaki, Nobuhisa; Ogawa, Toru; Yamada, Tomonori

Nihon Genshiryoku Gakkai-Shi ATOMO$$Sigma$$, 61(12), p.843 - 846, 2019/12

The series of articles introduce the JAEA's R&D. In the first series, we introduce Fukushima Daiichi decommissioning and Fukushima remediation (1).

JAEA Reports

Development of temperature evaluation method for robot test pool

Arakawa, Ryoki; Nosaki, Nobuhisa

JAEA-Technology 2018-013, 51 Pages, 2019/02

JAEA-Technology-2018-013.pdf:7.75MB

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, TEPCO 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, and obtained the data. From the obtained temperature data, a heat transfer model for evaluating the temperature behavior was investigated, and the temperature evaluation method for the robot test pool was developed. This report summarizes the developed heat transfer model, and also summarizes the temperature evaluation method during heating and cooling conditions. Moreover, user's manual for the temperature evaluation code was also created.

JAEA Reports

Heating test of robot test pool

Arakawa, Ryoki; Nosaki, Nobuhisa; Hirata, Yuji*

JAEA-Technology 2018-009, 28 Pages, 2019/01

JAEA-Technology-2018-009.pdf:2.94MB

The Naraha Center for Remote Control Technology Development consists of a mock-up test building and a research management building, and various test facilities are installed in them for the decommissioning work after the accident of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings. In the test facilities, the robot test pool for the underwater robot can be tested under temperature conditions raised from room temperature to 60$$^{circ}$$C. Then, for the purpose of grasping the temperature distribution inside of the pool and the temperature rising behavior in temperature raising condition, a temperature heating test with room temperature to 60$$^{circ}$$C. (maximum setting temperature) was performed, and as well as an analytical study was performed. This report summarizes the obtained both experimental and analytical studies.

Journal Articles

None

Nosaki, Nobuhisa;

Saikuru Kiko Giho, (14), p.105 - 113, 2002/03

None

JAEA Reports

None

Nosaki, Nobuhisa*; *; *; Enokido, Yuji*

PNC TN9520 88-001, 211 Pages, 1988/01

PNC-TN9520-88-001.pdf:5.28MB

None

Journal Articles

None

Nosaki, Nobuhisa;

FAPIG, (159), , 

None

Oral presentation

Operation training system for decommissioning work using immersive virtual reality technology

Tsuchida, Yoshihiro; Ono, Takahiro; Nosaki, Nobuhisa; Kato, Mitsugu

no journal, , 

Oral presentation

Accuracy improvement of operation training function of remote control device

Ono, Takahiro; Kubuta, Yoshitsune*; Ito, Rintaro; Suzuki, Kenta; Kawabata, Kuniaki; Nosaki, Nobuhisa; Dekura, Toshinori*

no journal, , 

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