In Japan, PAZ -Precautionary Action Zone- and UPZ -Urgent Protective action planning Zone- are decided. On the other hand, there is a big typhoon in summer and heavy snow in winter in Japan. They might prevent citizen to protect from radioactive materials. Therefore, it is important to think evacuation in such a situation. This study uses OSCAAR -Off Site Consequence Analysis code for Atmospheric Release in Reactor Accident- that is developed by JAEA -Japan Atomic Energy Agency. OSCAAR can evaluate exposure...
英字タイトル:
Evaluating exposure risk profile around NPP by Level3 PRA

Flow accelerated corrosion (FAC) is the major pipe wall thinning phenomena in power plants. The management of pipe wall thinning has been carried out to pipe elements such as elbow, orifice, etc. of the piping system in power plants. In piping system, it is known that several pipe elements which are connected in series may generate swirl flow. Therefore the arrangement of pipe elements is considered to affect thinning phenomena seriously. So the behavior of this swirl flow is one of the major research ...
英字タイトル:
EFFECT OF SWIRL FLOW GENERATED BY THE COMBINATION OF PIPE ELEMENTS ON WALL THINNING PHENOMENA