Forty Years Later

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Fredski Guru Join Date: Feb 2011 Posts: 7025 Good Answers: 207	Forty Years Later 08/25/2017 8:40 AM
	Thorium Salt Reactor Experiments Resume After 40 Years: http://newatlas.com/thorium-salt-reactor-experiment/51051/?utm_source=Gizmag+Subscribers&utm_campaign=ce7d8392e4-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-ce7d8392e4-90360106
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#8 "Re: Forty Years Later" by Lehman57 on 08/26/2017 6:25 PM (score 2)

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#1 "Re: Forty Years Later" by James Stewart on 08/25/2017 12:28 PM (score 1)

James Stewart Guru Join Date: Mar 2011 Location: Lubbock, Texas Posts: 14331 Good Answers: 162	#1 Re: Forty Years Later 08/25/2017 12:28 PM
	About time, don't ya think? __________________ If it ain't broke, don't fix it. Just build a better one.
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#2 Re: Forty Years Later 08/25/2017 1:05 PM
	__________________ All living things seek to control their own destiny....this is the purpose of life
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JE in Chicago Guru Join Date: Apr 2008 Location: Chicago Posts: 3990 Good Answers: 144	#3 Re: Forty Years Later 08/25/2017 1:52 PM
	I was googling my brain to think of what happened 40 years ago and I came up with Elvis croaked? __________________ High Tolerance is Beautiful
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Fredski Guru Join Date: Feb 2011 Posts: 7025 Good Answers: 207	#4 In reply to #3 Re: Forty Years Later 08/25/2017 2:24 PM
	he isn't dead I talk to him all the time
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James Stewart Guru Join Date: Mar 2011 Location: Lubbock, Texas Posts: 14331 Good Answers: 162	#5 In reply to #4 Re: Forty Years Later 08/25/2017 3:31 PM
	I bet he isn't eating any more peanut butter and banana sandwiches on white bread. BTW Elvis approves of LiFTR reactors. Only molten salt will do. __________________ If it ain't broke, don't fix it. Just build a better one.
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#6 In reply to #4 Re: Forty Years Later 08/25/2017 3:32 PM
	__________________ All living things seek to control their own destiny....this is the purpose of life
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JPool Guru Join Date: Apr 2012 Location: Detroit MI, USA Posts: 2496 Good Answers: 271	#7 In reply to #4 Re: Forty Years Later 08/25/2017 5:07 PM
	He works a Burger King in Las Vegas, he was the teller when I was there 3 years ago, he was also at several wedding chapels, no way he is dead. __________________ How we deal with death is at least as important as how we deal with life. --CAPTAIN KIRK, Star Trek II: The Wrath of Khan
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Lehman57 Guru Join Date: Sep 2009 Location: Louisville, OH Posts: 1925 Good Answers: 36	#8 Re: Forty Years Later 08/26/2017 6:25 PM
	The several nuclear energy problems in the article seem to be based on water cooled thermal reactors. However, I think the thorium reactor implies that fast reactor technology is being used. A fast reactor can use the present "waste" as fuel, thereby lessening the waste storage problem. The waste it does produce is much less radioactive both in quantity and half-life. The fuel source can be much more than thorium; including depleted uranium (we have multi tons of it on hand already, and the thermal reactor "waste" as mentioned above. The fast reactor consumes the transuranic actinides that cause most of the radioactivity in the thermal reactor "waste." The comments to the article contain many fallacies brought on by lack of understanding and media hype. For a better understanding, get and read the book Nuclear is for Life written by Wade Allison. __________________ Lehman57
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James Stewart Guru Join Date: Mar 2011 Location: Lubbock, Texas Posts: 14331 Good Answers: 162	#9 In reply to #8 Re: Forty Years Later 08/28/2017 9:08 AM
	One of the links sent by Solar Eagle was pointing out key facts related to "thermal" breeder reactor like the LIFTR and "fast" breeder reactors. The key words are "thermal" and "fast", in reference to the average kinetic energy of neutrons in the reactor. There are very important differences with regard to nuclear fission cross-sections, and mainly in the neutron gain values. Thorium works best in a situation that leads to U233 (thermal), and Plutonium (bred from Uranium) works better in the fast regime. Totally different classes of reactor with respect to the moderator, and with respect to what happens in case of reactor dump. Did you know that the "fast" reactors can have control issues where moderator is lost? In LIFTR, when there are problems, the freeze plug power is cut off, it melts, dumps the molten salt to containment vessel (no carbon moderator), and neutron flux quickly goes to zero. Residual radiation is also quite low in this reactor, compared to light water or Plutonium fast breeder. I still give you a good answer, because you still brought some useful factoid about possible feed fuel. __________________ If it ain't broke, don't fix it. Just build a better one.
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Lehman57 Guru Join Date: Sep 2009 Location: Louisville, OH Posts: 1925 Good Answers: 36	#10 In reply to #9 Re: Forty Years Later 08/28/2017 4:04 PM
	Did you know that the "fast" reactors can have control issues where moderator is lost? No, but I have heard that fast reactors will safely shut down without outside intervention in case of a loss of coolant accident--liquid sodium cooled type. I have also read that control is more difficult for the fast reactors __________________ Lehman57
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#8 "Re: Forty Years Later" by Lehman57 on 08/26/2017 6:25 PM (score 2)

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#1 "Re: Forty Years Later" by James Stewart on 08/25/2017 12:28 PM (score 1)

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Users who posted comments:

Fredski (1); James Stewart (3); JE in Chicago (1); JPool (1); Lehman57 (2); SolarEagle (2)

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