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Latest News
What’s the most difficult question you’ve been asked as a maintenance instructor?
Blye Widmar
"Where are the prints?!"
This was the final question in an onslaught of verbal feedback, comments, and critiques I received from my students back in 2019. I had two years of instructor experience and was teaching a class that had been meticulously rehearsed in preparation for an accreditation visit. I knew the training material well and transferred that knowledge effectively enough for all the students to pass the class. As we wrapped up, I asked the students how they felt about my first big system-level class, and they did not hold back.
“Why was the exam from memory when we don’t work from memory in the plant?” “Why didn’t we refer to the vendor documents?” “Why didn’t we practice more on the mock-up?” And so on.
K. Isobe, T. Yamanishi
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1387-1390
Detritiation and Isotope Separation | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12689
Articles are hosted by Taylor and Francis Online.
Ceramic electrolysis method that had been developed for tokamak exhaust processing can be applied for the process of highly tritiated water. Aiming to enhance the efficiency of ceramic electrolysis method, we developed new electrodes using cerium oxide (Ceria). We prepared electrodes by two manufacturing methods. One is to mix ceria into Pt paste and then electrode was sintering on the Yttria stabilized Zirconia (YSZ). The other is to use Ceria as intermediate layer between YSZ and Pt-YSZ electrode. In addition to this, different ceria concentrations of electrodes, 10%, 20% and 30%, were prepared for Ceria adding electrode. The water decomposition performance of such electrodes and usual electrode using Pt-YSZ was confirmed in different humidity at 1073K. Both electrodes using Ceria showed higher water decomposition performance than that of usual electrode. Especially, 30% ceria adding electrode showed highest performance and the decomposition efficiency was one order magnitude higher than that of usual electrode.
