Water environment improvement (ex. Hydrogen Water Chemistry (HWC)) is carried out for Stress Corrosion Cracking (SCC) mitigation in some of BWR plants. Japan Nuclear Technology Institute (JANTI) has the guideline on the inspection programs based on effectiveness of environmental SCC mitigation technique for BWR core internals. The guideline provides the crack growth rate (CGR) under HWC. Although CGR is defined by ECP (electroch emical corrosion potential), a dealing of evaluation of ECP and the HWC avail...
英字タイトル:
The Guideline of evaluating the effectiveness of environmental improvementby Hydrogen Water Chemistry

Since the 2011 Great East Japan Earthquake, Toshiba Energy Systems & Solutions Corp. (Toshiba) has accomplished various tasks in preparation for the upcoming fuel removal operations at the Fukushima Daiichi Nuclear Power Plant (F-1) Unit 3. In November 2015, TEPCO and Toshiba removed large rubble (e.g. Fuel handling machine) that had been sitting inside the spent fuel pool [SFP] as a result of the hydrogen explosion. Currently, Toshiba continues to work on the projects related to fuel removal from the SFP, ...
英字タイトル:
Effort aimed at removal of stored fuels from SFP in Fukushima Daiichi Nuclear Power Station