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Wonderful Thread..
If india goes for LFTR there will be no need for of first 2 stages because few LFTRs will produce enough U233 which will act as the fissile material of 100s of moltan salt reactors.Firstly we need to understand that LFTR does not replace all three stages of the current Indian program. It only replaces the third stage, ie the AHWR stage. We still need to generate seed fuel to start the LFTR cycle. With the way India has been treated wrt nuclear technology by the west, it is critical that we master the fast breeder stage so that adequate plutonium is available to then go for a large scale deployment of thorium based reactors. This deployment could be based on any thorium technology. Hence if LFTR has matured as an option, then it is actually quite simple to adopt and deploy it. In the meantime, if the AHWR has also been mastered, then it gives us a competitive thorium fuel cycle advantage. The critical aspect if to be abel to master the fuel cycle.
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yes 3 or 4 reactors which ran under the supervision of Alvin Martin Weinberg are the only examples of MSRs and this is the point if they were able to built this cycle in 60s than why can't we do it even after 50 year with much better technology and brains.Secondly, all arguments being made by the proponenets of the LFTR are based on the Oak Ridge reactor that the US ran decades ago. There is no working model yet even on an experimental scale and only diagrams exist. .
yes u r right all the technologies of MOX fuel cycle of AHWR are well proven at laboratory scale and the design of AHWR having 300 MW capacity is under review of Atomic Energy Regulatory Board .AHWR will be the first reactor which will use Th but thats not the point .what india needs is a cheep energy source which can fuel its fast growing economy and AHWR is like other heavy water high pressured reactor which will need billions of dollars of initial investment for single reactor whereas LFTR is a small reactor which is far more safe the any heavy water reactor requires less investment and even can be built within cities .Some MSRs advocate scientists say that a 10000 MWe single LFTR can be built.On the other hand the first AHWR will hopefully go critical within 5-6 years from now. The AHWR is nothing but a proven PHWR modified to use thorium as the primary fuel. The news of Kakrapar 1 using thorium was basically BARC testing a PHWR to run thorium. In other words the AHWR will be quite a mature technology even before the first reactor goes critical.
.. I have a sneaky feeling that BARC alredy has started studies in MSR's, probably even decades ago, as this is not new technology
It is not small. Look up CAT, Indore. There is collaboration with Fermilab in USA on ADS.An alternative starting procedure is use of a simple proton beam source (ADS) and there is a small scale research on ADS in india and england.
Sorensen is basing the calculations on the Oak Ridge reactor that went critical and was later shut down in the 60's. This still does not change the fact that the technology is promising and India should also invest in its Research or at least partner with other entities.Is there any calculation other than Sorenson et al on efficiency of LFTR? Why is everyone so keen on believing his website?
The eta factor from Indian FBTR is a measured quantity. What has been measured and established (at a realistic prototype scale) for the LFTR?
Spring2011ConferenceIs there any calculation other than Sorenson et al on efficiency of LFTR? Why is everyone so keen on believing his website?
The eta factor from Indian FBTR is a measured quantity. What has been measured and established (at a realistic prototype scale) for the LFTR?