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A comment on Triso particles have safety features that may power a new generation of reactors. Parent comment

Re:Triso particles have safety features that may power a new... by Obi_Juan_Kenobi on Friday July 03, 2020 @07:01PM (#23728366)
Using liquid water as your moderator really constrains how hot you can go.
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Re:Triso particles have safety features that may power a new... by sbierwagen on Friday July 03, 2020 @08:20PM (#23728859)
St. Vrain was helium cooled and graphite moderated and it only ran at 1430F, which still caused some hair-raising operational problems: https://www.nrc.gov/docs/ML0403/ML040340070.pdf

High temps are very good for efficiency, but are difficult for safety. Only China is building VHTRs right now. If anyone ever builds a supercritical water reactor then it would give you decent efficiency without the problems of exotic coolants.

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