US military eyes prototype mobile nuclear reactor in Idaho
apnews.com
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In Afghanistan, shipping fuel in was extremely expensive resulting in costs of $400/gallon (~$100/liter) at the destination[1]. At that level of shipping costs, electrical generation is so expensive that it makes sense to investigate small-scale reactors to see if they could make economic sense.
[1] https://thehill.com/homenews/administration/63407-400gallon-...
I'm not talking about the tents themselves, or the soldiers living in them, their supplies or assistance after the war. All of that cost more. I'm just talking about fuel for air conditioners.
So roughly one (american) football field of solar panels for every 180 or so 7kW AC units. (Rounding generously since this is just a thought experiment to look at some lower bounds.You'd probably need a lot more solar panels than that (3x?), plus battery infrastructure, plus some way of cleaning the panels etc. for this to be practical)
Grid connection optional - and if provided can be used to automatically balance electrical load between buildings.
This probably weighs less than a tent plus generator plus fuel.
In reality in general it's hard to do things that make sense as a whole - large organizations can only optimize invididual parts.
But yeah i would too, not use solar-panels in a warzone.
Whenever hydrogen turns up in discussions about energy storage people tend to forget physics and the infrastructure reality of dealing with electrolysis, compression and liquefaction and powercells ... which ultimately charge batteries so you can buffer energy to deal with varying consumption.
It's just one thing, storage huge amounts of energy in liq. hydrogen is easier then in batteries (who are explosive as well) and heavy.
But again...i would not use one of those technologies at all in a War-zone..all of them are way too complex for the field.
And storing compressed hydrogen needs nothing more then a Gas tank like the one under your Grill.
You even use compressed hydrogen for welding.
Again, you know nothing and try to blind everyone with your highly secret knowledge.
https://energies.airliquide.com/resources-planet-hydrogen/ho...
>>For example, the tanks on the Ariane launcher, designed and manufactured by Air Liquide, contain the 28 tons of liquid hydrogen that will provide fuel to the central engine. These tanks are a genuine example of technological prowess: they weigh only 5.5 tons empty and their casing is not more than 1.3 mm thick.
You make the naive assumption that you temporarily storing hydrogen in a tank with 1.3mm thick walls that needs to last for, at most, a couple of days, has any relevance for permanent energy installations.
If you are going to argue for an energy storage technology you have to consider what it would actually look like in practice. And since you only want to consider one part of the chain: I suggest you look into what it takes to safely store hydrogen in a vehicle and how this compares to your naive belief that hydrogen behaves like liquids that you have an intuitive understanding of. (Spoiler: you'd have a hard time convincing authorities to let you drive around traffic with a 1.3mm thick tank in the back of your car).
Then again, I don't think you want to actually know anything about this. I think you only want to argue and you are annoyed that someone called you out.
The 1.3mm example was to prove that it's technological possible to isolate liquid hydrogen with such a tank. In a car you don't use liq nitrogen[1]. You just shift the usage-surrounding to make your point, it's like saying "but using kerosene in a rocket needs some additional measures too", true. Exactly like using a toilet in space needs some additional measures too.
[1] https://www.ieafuelcell.com/fileadmin/_processed_/e/e/csm_fc...
How easy is it to design a solar array that stays operating (with reduced capacity) after a few mortar hits?
I would guess solar arrays in space that beam energy down are a better solution for military bases in times of war. The USA is actively working on that (https://www.livescience.com/microwave-beam-military-space-pl...)
She basically said that a system like you've mentioned was tested, misfired and started wildfires. It was then covered up by some Jewish guy on the board.
I think better having people target your equipment in a base where its easier to have defence and a perimeter, than over a regular and long supply line.
I don’t know if it’s better or worse but different with different risks.
* https://www.npr.org/2011/06/25/137414737/among-the-costs-of-...
The DoD position:
> Defense Department spokesman Dave Lapan says that in fiscal year 2010, the Pentagon spent approximately $15 billion on energy for all military operations around the world. The Pentagon says when it comes to Afghanistan, it spent $1.5 billion from October 2010 to May 2011 on fuel. That fuel was used for heating and air conditioning systems, but also for aircraft, unmanned aerial systems, combat vehicles, computers and electricity inside military structures.
On Anderson (at the time):
> Anderson advocates for increased energy efficiency for military structures in order to cut down on the need for long, dangerous fuel-transport missions. […] Anderson says experiments with polyurethane foam insulation for tents in Iraq cut energy use by 92 percent and took 11,000 fuel trucks off the road. […]
> In February 2011 Gen. Anderson has joined the Relyant corporation as Senior Vice President, in charge for the company’s presence in Washington, D.C., managing the organization’s strategic planning and military business development. Relyant is a global provider of construction and insulation projects, life support, demining, logistics/procurement, security, and IT communications. It should be noted though that these additional costs are spent regardless of the volume of supplies sent over supply lines, as the convoys do not carry only fuel, but also food, ammunition, batteries, spare parts, building supplies etc. nevertheless, a green approach could significantly reduce volume, and costs and risk of such operations.
* https://defense-update.com/20110627_costly_aircondition.html
That wasn't because fuel (or shipping) is inherently expensive. Some contractors just made a ton of money. Fuel in Iraq close by is like 50 cents a five gallon bucket.
Wait till you see how much it costs to deliver a reactor there, and especially remove it from there (not something you can leave to the Taliban, like helicopters and Humvees).
The first one would be compounded by fuel economy rarely being high on the list of concerns for military procurement.
But the corruption involved was just staggering, in all directions. Here's a Kyrgyz guy misappropriating Russian jet fuel and selling it to the US in 2010: https://foreignpolicy.com/2010/12/21/did-an-american-contrac... / https://www.justsecurity.org/2726/the-juice-worth-squeeze-ky...
But of course even the locals couldn't buy fuel without protection money being paid to the Taliban, so that's what the US ended up doing: https://www.cnbc.com/2021/09/10/9/11-millionaires-and-corrup...
> According to a Pentagon analysis, 40% of the $108 billion that the Defense Department paid to contractors in Afghanistan between 2010 and 2012 ended up in the hands of either the Taliban, the violent Islamist Haqqani terror network, organized crime rings, transnational drug traffickers or corrupt Afghan officials.
Add in the concept that micro power plants would really boost local infrastructure and you spread freedom through capitalism.
1. Enormous quantities of gear that belonged to the Afghan government
2. US military equipment that the US consciously decided not to pack out or destroy.
Harder to do safely with a reactor.
The Afghan Army and US State department left helicopters.
That said, no more single control rods...
(I dunno if they are built this way, it just doesn't seem particularly impossible).
Disregarding the health and safety issues of the briefcase carrier the briefcase is sure to turn into a pile of molten radioactive sludge very quickly.
Nah those have already existed for a long time: https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_ge...
The microreactor is designed to fit in a shipping container and can be easily transported by air, ship, and road
https://apnews.com/article/joe-biden-science-technology-busi...
The shielding, in this case, serves to protect innocent bystanders who aren't trying to pull the thing apart. Though I would still not want to live close by - intentional "safe" meltdowns are not a well-explored technology.
For something this small the proportion of uranium would probably be higher, but it'd still be a radioactive slurry of fuel, decay products, control systems, cooling loop, and internal structural materials.
[1] https://en.wikipedia.org/wiki/Nuclear_fuel#TRISO_fuel
[2] https://www.energy.gov/ne/downloads/x-energy-tier-i-awardee
For an operating reactor it would definitely need to be passively safe. If you went with a molten salt breeder reactor or even just a non-breeder like the MSRE you could dump the fuel salt into your drain tanks mixed with a bunch of some boron compound. You could set off small charges to spray a bunch of dimethylmercury all over the outside of the reactor to kill anyone foolish enough to enter the building. I think that would be banned by the Geneva convention but the point is that there are ways of "salting the earth" within a short amount of time.
The logistical problem of exit is something the US has always been very good at. It's the political aspects it has problems with.
[0] https://www.snopes.com/fact-check/us-taliban-arsenal-militar...
The reactor itself could then be disabled with shaped charges, etc.
There are also ways to poison the core so that it is inoperable unless you got a large nuclear processing facility to remove the contaminates from the core material. But I find that an inferior solution since it leaves behind dirty bomb materials.
But, there are fewer reasons to to be skeptical about a DOE National Lab's ability safely to develop some prototypes and learn a lot. Three Mile Island's near-meltdown was 42 years ago now. Even though there hasn't been much new construction of civilian nuclear power plants since then, it's absolutely worth investigating whether new reactors designs can be safer than 20th-century ones. Not investigating is a form of security through obscurity: always a bad idea.
OTOH: A former president put a former Texas governor (Perry) in charge of the DOE, and Perry, when he took the job, was surprised to learn their major mission is dealing with all things nuclear. It's conceivable the DOE could fall under incompetent political leadership again.
(Militaries also have a long history of training troops on how to quickly disable gear in danger of capture.)
Gotta watch out when searching for this stuff though, because Our Enemies’ propaganda distribution networks will use it as an excuse to blame America for having to protect the world from evil people like Saddam and Gaddafi https://www.rt.com/news/libya-all-about-oil-818/
You can tell RT are lying because Vladimir Putin owns only a paltry 50.002% stake in the world’s largest coal gas company and they probably welcome a little camaraderie from rival producer-nations: https://en.wikipedia.org/wiki/Gazprom
If this is a valid interpretation, it seems to me a competitor for "the news of the century". What is the catch? The cost? Maintenance? Vulnerability? If unfit for common civil use, it is still an impressive piece of progress in the direction of solving energy requirements problems, today one of the priorities.
Political ones, mostly. Though there certainly seem to be valid security/engineering concerns.
Is it just disinterest? Or the thinking that Nuclear is bad overall?
And that's why the US should not place anti icbm stuff near the russian border (turky, poland enc).
Absolutely on your side with that.
Thanks. WTF, I'd not heard of this, not that I read much news these days. (Sydney here.) Apparently both the main parties support it. But the public weren't consulted about this major policy shift. Australia doesn't have nuclear power, let alone nuclear weapons, and doesn't like nuclear-powered ships visiting... now suddenly we're gonna have our own, maybe. I think this will be unpopular. I've always admired NZ's anti-nuclear stance, and have never spoken to a Australian who doesn't also. Gee, I haven't felt so motivated to protest for a long time.
https://www.abc.net.au/news/2021-09-16/australia-nuclear-sub...
https://www.theguardian.com/australia-news/2021/sep/16/austr...
https://www.afr.com/companies/energy/anti-nuke-campaigners-p...
https://www.greenleft.org.au/content/no-nuclear-submarines-s...
https://www.smh.com.au/politics/federal/australia-s-fading-a...
What does this mean - a public referendum on the deal? As someone who hasn't been following Australian politics, do you guys hold referenda for big purchase agreements?
I assume that's a joke? Not just a "big purchase agreement", but as that ABC article begins, "Australia is embarking on its most significant change of defence and strategic direction in decades", because the US and UK want it, not because Australians want it, I guess. It's a total reversal of a policy that's lasted, well, must be 50 years. We've had a succession of remarkably cretinous Liberal[0] governments since 2013, from whom nothing is that surprising—I keep reading about their dreadful decisions on HN lately. But this is pretty surprising.
[0] i.e. the Liberal Party, in Australia the main party of the right.
The cabinet just made a huge strategic choice on their own and gamble on being able to sway the rest of society.
Luckily the same group of people who saved California from the scourge of atomic energy are still out there vigilantly protecting me from having to form my own opinions because I might form the wrong ones, aka the ones that don’t line their pockets and give cost-of-living another sorely-needed boost to help get all those troublesome poors (but I repeat myself) to move away while also thinking it was their own idea: https://science.time.com/2012/02/02/exclusive-how-the-sierra...