Development of the advanced glass melter in RRP

This paper describes the development of the advanced melter in Rokkasho Reprocessing Plant (RRP). This advanced melter is a Liquid Fed Joule heated ceramic melter, and the design of the advanced melter is largely different from the existing one. For the confirmation of the advanced melter performances, the full-scale inactive test was planned to be divided into 2 phases according to the test purposes. The phase-I test had been performed from Nov. 2013 to Feb. 2014, and it was confirmed that the advanced melter had good performances compared with the existing melter. And then, the phase-II test has been performed from Nov. 2014, and the good results are acquired in severe conditions, without periodical washing operation, with increasing glass production rate, etc. (author)