In order to keep stable and continuous operation of the power plants or chemical plants, an ice plug technology are often introduced to them specially for the room temperature water pipe, because of this effect to reduce volume of drainage and the isolation range. Water in the pipe are frozen from outside with liquid nitrogen as coolant, and this pipe is closed with this frozen water as called “ice plug effect” which generates the adhesive and the frictional force at the inner surface of the pipe. There...
英字タイトル:
Ice plug application technology for the maintenance of chemical reagent pipe system

Japan Atomic Energy Agency (JAEA) has organized “Pier Review Committee of Monju” consisting of experts on sodium cooled reactors and nuclear safety assessment in order to discuss and propose safety requirements for the prototype FBR Monju. JAEA is now researching the optimum plan in accordance with these safety requirements. Adopting another independent interlocking-system for the back-up shut-down system can reduce the accident risk of ULOHS: unprotected loss of heat sink. The heat transfer system of ...
英字タイトル:
Safety Requirements the Prototype Fast Breeder Reactor “Monju”