Thursday, December 24, 2009

A Tale of Two Articles

Here are two articles. Both are in the New York Times. Both are written by Matthew Wald. Both are about "nuclear power" (meaning light-water reactors in this case). But they are separated in time by twenty years:

The Nuclear Industry Tries Again, Nov. 29, 1989
Every plant of the more than 100 ordered since 1973 has been canceled, and many others are approaching retirement. But reactor manufacturers say that fears of global warming - the greenhouse effect - are giving them a second chance. Nuclear power advocates have, of course, been predicting the industry's rebirth for years. But the plans are becoming more specific, and political calculations are coming into play. Reactor builders are readying designs for a new generation of plants that, they say, will be far safer, less expensive and simpler to operate.

Loan Program May Stir Nuclear Industry, Dec. 23, 2009
Thirty years after the American nuclear industry abandoned scores of half-built plants because of soaring costs and operating problems like the Three Mile Island accident, skepticism persists over whether the technology is worth investing in.

Yet the pendulum may be swinging back. The 104 plants now running have sharply raised their output, emboldening utilities across the country to make a case for building new ones.

And the industry is about to get a big boost. In the next few days, the Energy Department plans to announce the first of $18.5 billion in loan guarantees for building new reactors.
During the twenty years that separates these two articles, a lot of things happened. The Soviet Union collapsed. We fought two wars in some of the most oil-rich country on Earth. Islamic terrorism became a global scourge and thousands were killed by suicidal airborne terrorists. The internet grew exponentially and our ability to communicate has been vastly improved. We've had speculative bubbles in tech and housing come and pop.

But "nuclear power technology" hasn't changed much at all. It is not difficult to recognize most of the same players and the same reactors from the 1989 article to the 2009 article. Sure, some of the companies have been sold or switched hands, but the products that they're marketing are easily recognizable.

The reason I bring this up is--if we want to have a "nuclear renaissance" we need to change the things that are keeping the growth in nuclear energy down and slow right now. The number one of those is the capital costs of building a reactor. The technology of a light-water reactor doesn't scale down cost-effectively (as I think B&W will discover) and so you want to build them big. That leads to a lot of capital being tied up while you build the plant, and for most utilities it either exceeds or strains what they want to risk. Buying a new set of gas-turbines and plugging into the nearby gas line, on the other hand, risks FAR less capital. You just have to worry about the severe fluctuations in fuel costs that are inherent in natural gas. But utilities have learned that they can push those off on rate-payers anyway. With nuclear power, fuel costs are VERY low but ratepayers generally don't make that connection.

The LFTR technology we advocate on here has the potential to really do something about the capital costs of the reactor, and the main reason is the superior heat-transfer capabilities of fluoride salt. Dr. Per Peterson at UC Berkeley is doing some of the best work right now describing this cost advantage, but because fluoride salt can move a lot of heat, at atmospheric pressure, everything in the plant gets smaller and cheaper. Less steel, less alloy, less concrete, less nuclear-grade material. A nuclear power plant that could have the physical footprint of a gas-fired power plant. Maybe even less.

I hope that by advancing fluoride reactor technology that twenty years from now when Mr. Wald writes another article about nuclear energy that he's reporting on the successful operation of several dozen liquid-fluoride thorium reactors.

Wednesday, December 23, 2009

Interesting Map of Australian Thorium Resources

Thanks to monitoring Twitter for "thorium", I found this site that describes efforts to map the thorium resources of Australia. Thorium is typically found in the crust at an average concentration of 12 parts-per-million (3-4 times more common than uranium) but this map shows many regions with concentrations above 50 parts-per-million:

Monday, December 21, 2009

WIRED Thorium Article Available Online

For those of you who have procrastinated buying the January 2010 issue of WIRED magazine, it looks like your waiting might have paid off:

WIRED Magazine: The New Nuke


I especially appreciate the efforts of Rick Martin and Erin Biba in getting this article pulled together and into Wired!

Thanks to the Wired article, we're getting record traffic onto the blog. If you're new here and would like to learn more, I would really recommend watching one of the YouTube videos linked on the right-side column of the blog. "LFTR in 16 minutes" is probably one of best if you want to learn more quickly.

Also, with regards to the article, it's important for me to mention a few things. First of all, fluoride salt is NOT highly corrosive if it's put in the right container material. The high-nickel-alloy Hastelloy-N was proven by Oak Ridge scientists and engineers to be compatible with fluoride salt at the elevated temperatures at which LFTR would operate. Discovering Hastelloy-N and proving it would work was one of their great accomplishments.

Also, LFTR is tightly controlled--but it is predominantly self-controlled. This is the best kind of control of all. Like putting a marble in a bowl and knowing it will always roll down to the middle, the LFTR controls the nuclear reaction naturally and without operator intervention. If the reactor starts to overheat, the salt expands, there's less fuel in the core to sustain the reaction and the reaction naturally slows down. If the reactor gets too cool, the salt contracts, there's more fuel in the core, and the reaction speeds up. If heat removal is lost, the reactor naturally shuts down, and if no intervention is made, it melts through a salt plug at the bottom of the reactor vessel and drains into a passively-cooled tank. The reactor is literally walk-away safe. That is one of the truly magic things about using a fluid fuel--you can achieve a level of safety that is truly amazing.

Capt. William Jacobsen, Jr (1973-2004)

Five years ago today, a cowardly terrorist took the life of a true American hero, Capt. William Jacobsen, Jr. That evil act ripped apart the lives of many others dear to me too, his wife Riikka Jacobsen and her four beautiful children.


I knew Bill and Riikka personally, having served an LDS mission with both of them in Dallas, Texas. I stayed in Bill's apartment the night I got to Dallas, and he was with me when we went home after two years. Riikka was in my missionary group that trained in Provo.

Bill was an incredibly fine man, father, husband, soldier, and patriot. Please visit these online remembrances to his life and work and the full measure of devotion he gave to the United States and our freedoms.

LDS Captain's Life Remembered

Honor the Fallen

Fallen Heroes Memorial


May God bless you and your family always, Capt. Jacobsen...

Saturday, December 19, 2009

The Copenhagen Speech I Would Have Written

Here's the speech that I would have written for Obama to give at Copenhagen, if I had been asked:

"Greetings fellow delegates.

We are here to confront the issue of global climate change. For me, I must admit, I am not a climatologist nor a scientist, and there are many things that I don't understand about the science. But the most essential element appears to be the connection between the emission of carbon dioxide and an increase in global temperatures. There is increasing uncertainty about how closely coupled those two factors are.

But there is no doubt that carbon dioxide is increasing in the atmosphere, and that as societies industrialize, they tend to use more and more fossil fuels that emit more carbon dioxide. We are having this conference in large part because people want the benefits of fossil fuels without wanting the effects that the emissions might cause. And no one wants to give up the benefits of using fossil fuels if they think that everyone else is still using them.

I am here with very good news for all sides involved. Consider a single barrel of crude oil, that might sell for 50 to 100 American dollars, depending on the mood of the market at the time. Our American scientists, nearly 60 years ago, figured out how to extract a hundred times more energy from an equivalent volume of common rock as from this barrel of oil. Everyone has lots of common rock in their country, and so this discovery means that every nation can be energy independent. The best news is that this technology can produce this energy without emitting greenhouse gases.

Based on this innovation, I declare that the intent of the United States is to decarbonize its economy while making it more powerful and more competitive. Rather than making energy more expensive, we're going to make it less expensive. We plan to do this regardless of what other nations plan to do, because it will be in our economic self-interest. Thus, our need to negotiate joint reductions in CO2 so as to not unfairly hurt our own economy has largely gone away. We do this in order to increase our economic competitiveness.

We have made available this research online for years. Other nations are free to follow this compelling research as well. But make no mistake, the United States plans to lead and succeed at this thrilling effort.

Thank you, and my best wishes for your futures."

Friday, December 18, 2009

Wired Magazine: "The New Nuke"

The January 2010 issue of Wired Magazine has an article by Richard Martin called "The New Nuke" that talks about thorium. I haven't read it yet, but several of us helped Mr. Martin research parts of the article. I know that magazine subscribers are getting their issues in the mail now, but does anyone know if it's available on newsstands yet?

Wednesday, December 16, 2009

LFTR post over at "Brave New Climate"

Dr. Barry Brook has hosted a guest post on his blog "Brave New Climate" from Alex Goodwin, a member of the thorium forum, about LFTR and its potential for Australia. Be sure to take a look and leave comments!

Brave New Climate: A LFTR deployment plan for Australia

A Question to an "Environmentalist" Organization

Recently a member of the thorium-forum who has also been a member of the "environmental" group Environmental Action, received a form letter asking him to renew his membership. He perused their website and found nothing about nuclear energy, except for the fact that here in the U.S. we now get 19% of our electricity from nuclear. On the other hand, on one of their web pages was a statement that we get 2% of our energy from "clean" sources. He wrote a letter to them and enclosed it in their return envelope, and gave me permission to re-post it here. I do so in the hopes that others might follow his example and ask these groups why they oppose the source of energy that has the very best chance for lifting the human race out of poverty and suffering AND drastically reducing our impact on the environment:

______________________________________________
Environmental Action
44 Winter Street
4th Floor
Boston, MA 02108

SUBJECT: PLEASE EXPLAIN

Gentlepersons:

Today I received a request from your organization to renew my support. However, before doing so, I want a question answered and to make some points. My renewal depends on your response.

I found the following statement on your web site:
“We get only 2% [of our electricity] from clean energy sources such as wind and solar power.”
However, we get about 19% of our electricity from nuclear power, as you already know, yet you have not included nuclear power as clean energy. Why?

China emits more CO2 than we do. Both China and India have a population of approximately one billion. India has a population density 11 times greater than ours, and China has a population density 4.3 times greater than ours. Because of their high population densities, it would be totally impossible for China and India to meet more than a fraction of their growing power needs with wind and solar power. Thus, unless they and other densely populated countries use nuclear power, they will use huge amounts coal in which case our attempts to reduce CO2 emissions would be meaningless. In fact, it is doubtful that we could meet all of our power requirements without using nuclear.

Thirty years ago, fear of nuclear power was valid. However, there have been considerable advances in nuclear power over the last 30 years, and the advances should allay the fears that formerly were valid.

Nuclear “waste” need no longer be a problem. The “waste” is actually contains more than 60% U238 plus considerable plutonium and can be burned in fast breeder reactors, thereby reducing the “waste” to a tiny fraction. The remaining waste would have a short life and would need to be sequestered for only a few hundred years, rather than thousands of years.

Also, reactors can be, and have been, designed to use thorium for fuel instead of uranium. A thorium reactor produces only a fraction as much waste as a pressurized water thermal reactor (the most common type currently in use), and the waste decays quickly.

Obviously Environmental Action has one of two problems:

1. It’s anti-nuclear stance is like a religion and will not change regardless of what evidence is presented, or
2. It has failed to do the necessary research to keep its knowledge up to date.

There are many sources of information that Environmental Action can use to update its understanding of nuclear power. I particularly recommend the book, Prescription for the Planet by Tom Blees; it is available from Amazon.com. Even though the book is not perfect, it does make many good and valid points regarding nuclear energy and the imperative to use it. Because the book does not cover thorium as a reactor fuel, I suggest doing a google search on “thorium reactor.” Thorium reactor technology has been proven effective.

If you do the necessary research work, I believe that you will be convinced that nuclear power can be safe, that it is essential to solving our environmental problems, and that opposing nuclear power is a serious mistake.
______________________________________________

Tuesday, December 15, 2009

More Energy Slavery, this time IN Copenhagen!

A few posts ago I mentioned the UK TV show where they showed an army of "energy slaves" pedaling away, trying desperately to generate enough power for a single family...a better demonstration of the concept of energy slaves, I've never seen.

I predicted we'd see more of such foolishness as the Copenhagen conference neared--what I didn't expect was to see this insanity itself IN Copenhagen!

WSJ: Pedal Power: Copenhagen Lights Christmas Tree With Bikes

At the Danish capital’s City Hall Square, 15 to 20 volunteers can sit on stationary bikes located around a massive, decorated tree and pedal away to keep it light, at least during the day. The bikes are connected to electrical tie-ups that ultimately power hundreds of lights on the tree.
Oh man, there's so much to say about the stupidity of this...perhaps I had better just stop now. But not before I mention that most of the electrical energy in Denmark is generated by fossil fuels, and that the Danish government has gotten rich off selling North Sea crude for years.

More Garbage Predictions Based on LNT

Here's another good example of junk science being used to sell newspapers and stoke anti-radiation fear:

Chicago Tribune: CT scans, cancer risk linked

Using normal doses of radiation for the procedure, about one in 270 women who receive it at age 40 and one in 600 men will develop cancer as a result, Dr. Rebecca Smith-Bindman of UC San Francisco and her colleagues found. For a routine head scan, one in 8,100 women and one in 11,080 men will develop a tumor.
Bull. I know how they generated this number, and it's based on using the "linear, no-threshold" hypothesis for radiation exposure. It's based on the simplifying (and wrong) assumption that small cumulative doses of radiation have a fractional effect of one large dose. It was formulated fifty years ago (in the absence of evidence for its truth) to be EXTRA CONSERVATIVE when it comes to radiation exposure.

But it has been used to generate all kinds of unintended, and wrong risk assessments. LNT is roughly analogous to saying that if 50% of people who fall from 50 feet die, and 100% of people who fall from 100 feet die, then falling 1 foot gives you a 1% chance of dying, and falling 1 foot 100 times means you'll die too.

And since, by the terms of the hypothesis, it would be unethical to expose large populations to low-doses of radiation and to see if the supposed cancer cases turn up, no one will ever attempt to disprove LNT clinically. Pretty convenient to have a theory that makes a prediction that makes it unethical to ever attempt to disprove the theory.

But nature is a test laboratory for LNT all the time, because there's lot of places in the world where people get background doses of radiation 10, 50, even 100 times higher than what people commonly get. Do we see larger numbers of cancers in those places? No, we don't. Some places we see even less cancer occurence.

Here's the simple fact--the body can repair radiation damage. It does it all the time. But LNT assumes that this doesn't happen. It's like working out--you "break down" your muscles and they build up stronger than before.

But the Chicago Tribune has published this article with a SCARY headline intended to sell newspapers--but the real cost will come from people who do not seek medical treatment out of an imaginary fear of radiation that then leads to serious medical conditions going undiagnosed that WILL kill them. But I'm sure the scaremongers who wrote this article will rest easy knowing that at least they didn't die from TERRIBLE SCARY RADIATION!!!

(thanks to Eric McErlain for the heads-up on the article...)

Saturday, December 12, 2009

The Economist: Nuclear's next generation

I was interviewed several months ago by the author for this article.

The Economist: Nuclear's next generation
One form of MSR, the liquid fluoride thorium reactor (LFTR), has garnered particular enthusiasm among those who regard thorium as an attractive replacement for uranium and plutonium in the fuel cycle. (Thorium is both cheaper and more abundant than uranium.) According to Kirk Sorensen, an engineer at NASA who also runs a blog on the merits of the thorium cycle, natural thorium provides at least 250 times more energy per unit than natural uranium. However, unlike fissile uranium, natural thorium must be “seeded” with external neutrons in order to get it to fission. Another obstacle for the MSR is finding materials capable of withstanding hot, corrosive, radioactive salt.

Wednesday, December 09, 2009

More Nuclear Archeology...

A few months back I blogged about going out to see the old Yellow Creek Nuclear Reactor site north of Iuka, Mississippi. I went back last Friday:


You can stand in the middle of this old cooling tower and speak no louder than a whisper and yet it comes back to you nearly as clearly as if you were speaking in a full voice.



The containment looks like it was abandoned 30 years ago. I'm pretty sure they would have to pull the whole thing out and start over if they meant to ever finish the plant.