News for hackers. Stuff that matters.

A comment on 'A complete failure' Japan's 'fantasy' hydrogen strategy does nothing. Parent comment

Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by cbmuser on Monday January 23, 2023 @01:58AM (#34486250)
Japan plans to make hydrogen using high-temperature nuclear reactors (HTGR or HTTR).

See: https://www.jaea.go.jp/04/o-arai/en/research/research_03.htm...

[ Parent | on HN ]
Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by enslavedrobot on Monday January 23, 2023 @02:07AM (#34486291)
High temperature hydrogen electrolysis is a proven cheap tech. The main problem is the cost of nuclear in my opinion.
[ Parent | on HN ]
Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by 6510 on Monday January 23, 2023 @06:06AM (#34487474)
While one could easily do arm chair criticism the author of the top article thought it more convenient to just ignore it?
[ Parent | on HN ]
Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by amluto on Monday January 23, 2023 @11:48AM (#34491321)
Nifty. The chemical process involved appears to be:

https://en.m.wikipedia.org/wiki/Sulfur–iodine_cycle

50% thermal efficiency from nuclear to hydrogen sounds very good.

[ Parent | on HN ]
Re:'A complete failure' Japan's 'fantasy' hydrogen strategy ... by Schroedingersat on Monday January 23, 2023 @05:26PM (#34495990)
Except nuclear steam generators have to run at well under 830 degrees and at low head because of two loop cooling and corrosion issues so odds are pretty good this will be about as reliable as every other gas cooled reactor and be shut down in 10 years.
[ Parent | on HN ]