The examples below are all from serious to semiserious sources - that is, sources where at least some thought was put into them beyond "what would make a cool picture".
Tuesday, June 11, 2013
Sunday, April 14, 2013
Propulsion Nucléaire Aéronautique?
So here's a mystery. I was skimming an old AEC list of reactor proposals for article ideas, and I came across an entry for a reactor called "BRENDA", that was going to be built by the Societe Nationale D'Etudes et de Construction de Moteurs D'Aviation (SNECMA) and the Commissariat à l'Energie Atomique (CEA) in Cadarache, France. The reactor was gas-cooled, used ceramic-clad enriched uranium oxide fuel, and would be moderated by beryllium oxide. 1 MWth power, 1300 F temperature. Purpose: aircraft propulsion prototype.
Now that's certainly something.
Now that's certainly something.
Thursday, April 4, 2013
The Nuclear-Powered Swimsuit
And I'm not talking about the bikini.
In the mid to late 60s, the AEC studied the use of Pu-238 radioisotope heaters to provide heat for a Navy wetsuit:
In the mid to late 60s, the AEC studied the use of Pu-238 radioisotope heaters to provide heat for a Navy wetsuit:
Figure 1: Pu-238-heated Wetsuit
(Okay, yes, technically it's a wetsuit, not a swimsuit. I thought swimsuit made a better title.)
Friday, March 29, 2013
Burning Metal, Part 2
Those
Magnificent Men and their Atomic Machines
Burning
Metal: The Los Alamos Molten Plutonium Reactor Experiment and the
History of the Fast Breeder
Part
II
With special thanks to
Prof. R. M. Kiehn
Note on Notation
Money is going to be
talked about a lot, but the value of the dollar has been different
from year to year. In each case, unless otherwise specified, values
will be given in the amount for the year in question, followed in
parentheses by the equivalent value in 2011 dollars.
Change of Plans
But, as Los Alamos was preparing the
third LAMPRE fuel loading, the nuclear energy landscape was changing.
In 1958 the Atomic Energy Commission
(AEC) had set a target of making nuclear electricity cost-effective
in regions with high fuel costs. In 1962, they decided they had
just about reached that goal. Four private nuclear reactors and two
joint public-private projects were producing power by 1962, and
another ten were under construction, most of them Light Water
Reactors (LWRs). In a landmark report to the president on civilian
nuclear power in 1962, the AEC recommended that light water
technology be handed over to the private sector. There were
obviously further improvements to be made, but they would be
evolutionary and incremental, and thus the domain of private
enterprise rather than the AEC labs. Properly encouraged by the
government, the light water reactor would be cost-competitive with
coal and gas by the 1970s except in very low fuel cost areas. The
AEC would focus instead on advanced reactor concepts, particularly
breeders.
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