Sunday, November 17, 2013

Kirk Sorensen of Flibe Energy: Why We Need LFTR

Link to video available from The Energy From Thorium  website.  I will break down the video on this here post.  Note: Comments are in the captions and are in italics.  Some of the graphics are modified for additional explanation.

Let's begin:

Intro


How we do it today.  We use nuclear sub technology that isn't necessarily optimal for energy production on the surface of the Earth.  In a sub, it is compact because it is surrounded by water.  On land, getting water to it in an emergency can be a problem.



Higher temperatures in the reactor can enable greater efficiency in energy production


Water has great heat capacity, but has to be kept under pressure.  Molten-salts exist at atmospheric pressure, and are unaffected by radiation.  This simplifies construction and is much safer to operate.



Passive safety feature.  If anything goes wrong, the molten-salt will drain into a safe configuration.  No power required.


Proof of concept already done.  Commercialization has been available to us since the late sixties  Flibe Energy is a company founded to commercialize the work that was done back then..



Wind and solar are diffuse and intermittent sources of energy.



Not only does the LFTR produce electricity efficiently, it also can produce with its waste heat some important byproducts.




The only natural fissile material is U235.  You can breed plutonium with U238 and use it in a fast reactor.  Or not use uranium at all.  You can bypass uranium  and breed thorium and use it in a thermal reactor.



A discussion of waste.  Thorium will burn more efficiently while the wastes can be separated more easily; and besides that, the wastes can be useful products in their own right.




Why should we care?  What does it mean?  A cubic meter of dirt has enough thorium in it to create as much energy as 30 cubic meters of crude oil.  We will never run out of this stuff.





LFTRs are the solution

The full video below:




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