METHOD TO PROTECT BWR REACTOR FROM CORROSION DURING START-UP

PROBLEM TO BE SOLVED: To provide a method for reducing electrochemical corrosion potential during the start-up phase of BWR reactors by solving the problem that the oxidizing chemistry environment of BWR reactor water is a key factor promoting intergranular stress corrosion cracking of stainless steel and nickel based alloys used in reactor coolant system piping and vessel internals and that the cracking is typically mitigated during power operation using hydrogen injection but this method is only effective when the reactors are at power. SOLUTION: The method includes the steps of providing a mitigation additive adapted to reduce electrochemical corrosion of a BWR reactor; and injecting the mitigation additive into the BWR reactor at a predetermined location prior to hydrogen injection coming online. COPYRIGHT: (C)2010,JPO&INPIT