2017-02-08 23:25 GMT-03:00 Kurt Jacobson <[email protected]>:
> I did some research on organic coolants for nuclear reactors a while back. > The idea was to replace the typical high pressure high temperature > pressurized water reactor coolant loop with a high boiling point organic > oil loop operating at low pressure (below atmospheric to reduce the chance > of contaminated coolant leakage). > > The best oils I found for this application were based on Polyphenyl > mixtures and sold under the trade name of Santowax. There were two types, > Santowax R and Santowax O-M. O-M is more costly as it contains more > Diphenyl and o-terphenyl but has a lower melting point of 125F, so it would > be fairly easy to keep it from freezing. As I recall these oils are quite > stable to over 600F (even in the extremely hash environment of a rector > core). I don't know if Santowax is still readily available. Dowtherm looks > like it has a similar chemical composition so is probably the modern > equivalent. > > I think you should seriously consider using an oil instead of water, as the > advantages are manyfold. The boiler would not need be built so ASME > standards, and in fact could be open to the atmosphere if desired. The > circulation pump would only have to be rated for hi temp, and the piping > system would be greatly simplified by being able to use common low pressure > fittings such as swivels, quick connects etc. which would likely an > advantage given the application. Also corrosion would not be a concern. > > Anyway, my $0.02 > > Cheers, > Kurt > Nice! As I told to Jim I'm looking forward to find some more info about DOW oils because I think if that works as we're discussing here it's going to be a lot better than using water. I've been reading that Dowtherm can last for 10 years without replacing it so it sounds pretty convenient. I should look if there's a distributor near me so I can call it. -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
