Mitsubishi Electric Corporation

Japan Atomic Energy Research Institute

Power Reactor and Nuclear Fuel Development Corporation

Taiki Kobayashi

Susumu Isobe

Tomooki Ukiana

Tatsuo Kondo

Hajime Nakajima

Jin Kawasaki

Takeshi Okada

Yasukazu Ishida

Katsutoshi Watanabe

A collection unit () collects a plurality of sensor values at a plurality of measurement points from a plurality of sensors provided to the plurality of measurement points, and per measurement point, accumulates environmental information data including a sensor value, in an accumulation unit (). An interpolation unit () finds a sensor value at a virtual point based on one sensor value or more obtained by one sensor or more. A management unit () accumulates environmental information data including the sensor value at the virtual point, in the accumulation unit.

Environmental information management system

A solid solution strengthened iron-base austenitic alloy is suitable for use in nuclear reactors having low oxidizing environment. It has a composition of 8 up to but not including 16.0% by weight of Cr, 14-35% by weight of Ni, 5-15% by weight of Mo plus 0.522 W, up to 1.0% by weight of Ti, up to 2% by weight of Mn, up to 1% by weight of Si, up to 0.1% by weight of C and the balance iron and unavoidable impurities.

Solid solution strengthened iron-base austenitic alloy

Growing community of inventors

Tokyo, Japan

Taiki Kobayashi