tag:blogger.com,1999:blog-320690524543640637.post5822432435825320686..comments2023-12-16T02:54:11.470-08:00Comments on Left Atomics: Toward a Thorium Economy: the Future of Nuclear Energy Part ID. Waltershttp://www.blogger.com/profile/04534202024416062943noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-320690524543640637.post-3016647369296272732017-04-25T23:38:09.651-07:002017-04-25T23:38:09.651-07:00hi thanks for sharing the information.
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I've been trying to contact you but ...Thanks Barry! I've been trying to contact you but your e-mail address keeps bouncing.<br /><br />Can you write me at:<br /><br />dave.walters<br />@<br />comcastDOTnet<br /><br />Thanks! I'll make the correction.<br /><br />DavidDWhttps://www.blogger.com/profile/03070034894266417461noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-89266824937059354182009-05-17T09:42:00.000-07:002009-05-17T09:42:00.000-07:00"The breeding ratio of the LFTR is can be anywhere..."The breeding ratio of the LFTR is can be anywhere from 1 to 1"<br /><br />Need to correct this.<br /><br />Great post David.Barry Brookhttps://www.blogger.com/profile/14508590187459871783noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-62904276686530604652009-05-05T12:51:00.000-07:002009-05-05T12:51:00.000-07:00Rod, I'm a LWR advocate. I know some LFTR folks ve...Rod, I'm a LWR advocate. I know some LFTR folks verge on the anti-nuclear genre in defense of the MSR. I'm not one of them. I see the LWR "as a good thing" but see the LFTR as a "much better thing". <br /><br />I see us going out a full 50 to 80 years of LWR replacement AS the LFTR is developed. The skills will be developed drawing on both standard uranium hard-fuel enegineering and chemisty, and, hopefully, new skill sets.<br /><br />I think the success of the smaller reactors, be they Adam's Engines or LFTRs as tied, technologically, politically and educationally, to the success of the LWR of the GEN III variety. We rise or fall together.<br /><br />DavidDWhttps://www.blogger.com/profile/03070034894266417461noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-54107551675691792009-04-29T07:50:00.000-07:002009-04-29T07:50:00.000-07:00Again, I don't disagree. Chemistry is in a way the...Again, I don't disagree. Chemistry is in a way the heart and soul of this process and it's going to be one of the biggest issues. But again, it holds the biggest promise to deal with waste, fuel reprocessing etc as compared to any solid fuel regime...<br /><br />D.D. Waltershttps://www.blogger.com/profile/04534202024416062943noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-31336894176457954712009-04-29T04:18:00.000-07:002009-04-29T04:18:00.000-07:00David - you and the other LFTR advocates need to u...David - you and the other LFTR advocates need to understand that there are tens of thousands of already trained nuclear power plant engineers, operators, designers, and technicians. They, like all well trained specialists, will have institutional biases.<br /><br />One of the challenges that LFTR will face is that it is essentially a "chemist's" reactor in a world that dominated by mechanics, thermodynamicists and physicists. Quite frankly, most of us do not look on continuous chemical processing plants as a desirable part of a nuclear power plant. We might be convinced over time. <br /><br />I think I am representing a view that has some constituents when I say that we favor solid fuel elements that will comfortably accumulate in simple containers until someone decides they want to purchase them as raw material for a large scale recycling program. The continuous chemistry cycle associated with LFTR seems to have too many potential difficulties that will need to be refined before it is widely viewed as a reliable system.Rod Adamshttps://www.blogger.com/profile/03652375336090790205noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-69584331756333273682009-04-27T16:32:00.000-07:002009-04-27T16:32:00.000-07:00Thank you Rod, I need to be grafted to a proof rea...Thank you Rod, I need to be grafted to a proof reader, it appears. Hmmm...I'll make that correction.<br /><br />As to the substantive comment. Well, what you say is all true, of course. But the advantage, appeal, selling point of the LFTR is that it IS liquid fuel, and as such processing can be both onsite and cheaper, than the more expected, expensive solid fuel forms of heavy metal fission.<br /><br />I suspect most of us hadn't thought of the problem of the 'visceral' response to working with... "pre-melted fuel" :). We have a few LWR nuke operators on energyrfromthorium.com but they did raise this issue.<br /><br />DavidD. Waltershttps://www.blogger.com/profile/04534202024416062943noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-60162574486129685962009-04-27T15:33:00.000-07:002009-04-27T15:33:00.000-07:00David - substantive comment:
One issue that I hav...David - substantive comment:<br /><br />One issue that I have with LFTR advocates is that they gloss over the fact that thorium is not inherently tied to liquid core reactors. In fact, thorium can be a very useful component in light water reactors and in solid core graphite moderated reactors.<br /><br />The last core of the Shippingport reactor was a U-233/Th-232 design that achieved a proven breeding ratio of about 1.04 during 5-6 years of operating at an average capacity factor of 65%. The low CF was due to the intensive testing program associated with the Light Water Breeder Reactor program.<br /><br />The Germans also thought that thorium was a good fuel for pebble bed reactors. The large one that they built called the Thorium High Temperature Reactor operated for about three years with some mixed results mostly due to poorly designed control rod systems. As a fuel, however, it had good performance and interesting capabilities.<br /><br />The Indians also like Thorium in heavy water reactors.<br /><br />In other words - I like the LFTR concept like I like most fission concepts. There are some practical hurdles, especially the economics of requiring all plants to include an on site chemical processing system. I am not sure that all those engineers on Energy from Thorium Forum have much cost analysis, accounting or business experience. I also believe that they underestimate the visceral response that most conventionally educated or trained "nukes" have with the idea of operating with a "melted" core.Rod Adamshttps://www.blogger.com/profile/03652375336090790205noreply@blogger.comtag:blogger.com,1999:blog-320690524543640637.post-78360951351411215512009-04-27T15:25:00.000-07:002009-04-27T15:25:00.000-07:00David - Proofreading comment on the following se...David - Proofreading comment on the following sentence:<br /><br /><I>"This can be highly enriched U234, Plutonium 239 from weapons or the waste of LWRs, or U233 produced in other Th breeder reactors like the LFTR."</I>U234 is not a good choice for a charge material. I think you are off by 1.Rod Adamshttps://www.blogger.com/profile/03652375336090790205noreply@blogger.com