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Author Topic: The upcoming energy crisis.  (Read 27968 times)
JonoPorter
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Re: The upcoming energy crisis.
« Reply #30 on: March 12, 2006, 09:30:09 pm »

Why do I get the impression we are all going to die very very soon... Lips Sealed *gulp* like as in someone screws up in a nucler plant and destroys 25% of america then we get piss say its Europe's then world war 3 begins we kill all the Europens then everyone else trys to kill us we kill them... then i dunno what happens after that  Wink
...
huh?
You overstate what a meltdown in a nuclear reactor would do. The worst thing a reactor can do is spew out radiation. When Chernobyl melted down the only structural damage to the building was a hole in the roof of the reactor chamber, and what resulted of the building lighting on fire.

Nor could a single nuclear bomb destroy that much of America. Also Nuclear reactors have the best safety track record of any major energy plants. No one has died in running a civilian nuclear reactor in America.
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Re: The upcoming energy crisis.
« Reply #31 on: March 12, 2006, 10:37:26 pm »

Quote
The worst thing a reactor can do is spew out radiation.

In here, http://www.damninteresting.com/?p=248 it says: "Had the melted reactor core collapsed into the small lake of water underneath it, it would have been the equivalent of dropping a nuclear bomb."

Anyway, that didn't happen Smiley But at long range, the effects of a nuclear meltdown are much more significant than that of a single bomb, because a reactor can release much more radiation. Perhaps I'm slightly more serious about this, cause there was a temporary ban on certain vegetables in the Netherlands, following that disaster. And that is about 1,000 miles away.
« Last Edit: March 12, 2006, 10:46:22 pm by GeomanNL » Logged
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Re: The upcoming energy crisis.
« Reply #32 on: March 13, 2006, 04:53:24 am »

See i was right  Wink remember the bomb at japans capital durring WW2? *i think* similar effect execpt without the huge awsome nucler explosion
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JonoPorter
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Re: The upcoming energy crisis.
« Reply #33 on: March 13, 2006, 07:46:43 am »

Anyway, that didn't happen Smiley But at long range, the effects of a nuclear meltdown are much more significant than that of a single bomb, because a reactor can release much more radiation. Perhaps I'm slightly more serious about this, cause there was a temporary ban on certain vegetables in the Netherlands, following that disaster. And that is about 1,000 miles away.
The effect of radiation and how much effect it has (at non lethal levels) is an issue of great debate, but people tend to exaggerate a great deal. The lack of accurate data makes this worse. So anything that can be said to be caused by radiation will suddenly have that as the cause. I’m not saying radiation can’t cause all those things, but people have a tendency to rush to conclusions.

See i was right  Wink remember the bomb at japans capital durring WW2? *i think* similar effect execpt without the huge awsome nucler explosion
You should at least try to get some facts right. When you constantly get your facts wrong it makes you lose a lot of credibility. Tokyo has never been nuked.
« Last Edit: March 13, 2006, 07:49:21 am by BioSlayer » Logged

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Deus Siddis
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Re: The upcoming energy crisis.
« Reply #34 on: March 13, 2006, 04:56:15 pm »

There are fail safes you can build into reactors to keep them from having problems. From what I understand, the problems errupt when you don't use these fail safes, something mechanical obstructs them, or the reactor system gets damaged somehow.
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Draxas
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Re: The upcoming energy crisis.
« Reply #35 on: March 13, 2006, 05:25:38 pm »

See i was right  Wink remember the bomb at japans capital durring WW2? *i think* similar effect execpt without the huge awsome nucler explosion
You should at least try to get some facts right. When you constantly get your facts wrong it makes you lose a lot of credibility. Tokyo has never been nuked.
[/quote]

Tokyo is also not the capital of Japan, just the largest and most populous city. Kyoto is the capital, though that was also never nuked.
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Re: The upcoming energy crisis.
« Reply #36 on: March 13, 2006, 06:00:16 pm »

Kyoto was Japan's capital and the emperor's residence from 794 until 1868. In 1868 the emperor moved to Edo which was renamed to Tokyo making it the capital city.
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Re: The upcoming energy crisis.
« Reply #37 on: March 13, 2006, 06:06:10 pm »

Huh. I thought it still was the seat of government (what with the Emperor being a ceremonial position now) even today, though. Very well, I stand corrected.
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Death 999
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Re: The upcoming energy crisis.
« Reply #38 on: March 13, 2006, 11:08:40 pm »

Slow-neutron reactors are incapable of using U-238 or Pu-239, and therefore cannot draw energy from dividing these energy-rich atoms. This is very inefficient. Almost all of our reactors are slow-neutron reactors.
Since they only run on U-235, they require highly-enriched U-235 fuel, which is also suitable for making nuclear weapons.
They leave very long-lived nuclear waste, with half-lives of tens of thousands years.

Fast-neutron reactors use all of the above-mentioned isotopes -- U-235, U-238, and Pu-239. This requires decent purification only, no enrichment. It can make nuclear fuel out of sufficiently heavy elements.
The nuclear waste left by fast-neutron reactors is very short-lived, 1000 years max and mostly much shorter.

So far, sounds like Fast-neutron reactors (FNR) are just the bees knees, right?
Well, there are down-sides.

1) FNR can be used to generate Plutonium, which can be separated out and used to make nuclear weapons much more easily than Uranium can be separated out and used to make nuclear weapons.
mitigation: Plutonium-based weapons are much harder to make than Uranium weapons, after you get the material
2) FNR use liquid metal coolants, which have a not so hot safety record.
mitigation: there is a lot of room for improvement in the handling of these.
mitigation 2: when the liquid metal spills, it is at least not radioactive.

So, if the question of nuclear power is just radioactive waste and supply problems, FNR is to a great extent an answer. If it is an issue of security, it is partially an answer (you don't need to have enriched Uranium all over the place) but also a problem (each one is potentially a plutonium factory).

In the mid-range run, I think that'll be the answer. After that, we may have affordable fusion.

(edited to correct a typo which changed the nuclear physics)
« Last Edit: March 23, 2006, 05:52:27 pm by Death 999 » Logged
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Re: The upcoming energy crisis.
« Reply #39 on: March 21, 2006, 07:55:45 pm »

Nuclear power will last a long time yet especially if proliferation bans are lifted. Some nations are already using things like Ethanol(We could just drain the Orz Wink) and Hydrogen. Solar is good because the sun will last as long as life on earth dose if not longer. My roommate and I are currently working on making Ethanol more efficient.

There are lots of replacement fuels that are available; they are just more expensive to produce right now. If we can build a sufficient info structure now to produce these replacement fuels the expense by the time the oil runs out in about 50 or so years at current rate of uses and growth of uses.

Thankfully we already have the technology to make plastic once we run out of oil.

There is also the idea out to build methane farms, but that seems like it would be a rather smelly operation Smiley. It would be worth it though if it produced a good amount of fuel
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Death 999
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Re: The upcoming energy crisis.
« Reply #40 on: March 23, 2006, 05:53:58 pm »

Hydrogen is just energy storage... not a source. If you're going off of ethanol farms, remember to compare it with other solar-based energy sources in full-cycle efficiency. How much energy must be spent to keep the farm running?
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Re: The upcoming energy crisis.
« Reply #41 on: March 24, 2006, 03:25:05 am »

Set fire to street-bums. They're all over the place.

Street-bum power is the way of the future. I'm sure of it.


Also, I'd stop get arrested for it, and I see that as a bonus.


highly effective source of energy, i think we have a nobel peace prize in order for you...

how are we supposed to fuel cars with flaming street bums? Let them burn into ashs, mix their ashs with rubbing alcohol and tabasco, let it ferment for a year then send it to the pump?
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NECRO-99
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Re: The upcoming energy crisis.
« Reply #42 on: March 24, 2006, 03:35:36 am »

We'll find a way to create, safely harness and extract unlimited power from a contained singularity event. Oh wait, someone mentioned Zero Point Energy, dangit...

What other futuristic method can I think up...antideuteron? If we could smash together an antiproton and an antineutron and make a few molecules of antideuterium, that might have possibilities.
Anyone mentioned harnessing magnetic monopoles? Some sort of superconductive dynamo with multiple monopoles in it to produce vast amounts of energy. Would that even work?

Hmmm...that ITEN thing looks pretty neat. I hope it works out. If it doesn't, I'm going to invest in some solar panels for the roof of my house, wind generators, maybe a geothermal tap if I'm close to a fault line or something and then wire myself up so I never have to pay an electric bill. Shoot, I'll probably -make- money selling power back to the electric company. Ahh, Mother Nature always has a way.
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Deus Siddis
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Re: The upcoming energy crisis.
« Reply #43 on: March 24, 2006, 04:15:07 am »

"Oh wait, someone mentioned Zero Point Energy, dangit...What other futuristic method can I think up..."

You could bring up Dark Energy, no one has mentioned that yet. . .oh wait. . .
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Re: The upcoming energy crisis.
« Reply #44 on: March 24, 2006, 07:35:20 am »

Containing a molecule of antimatter to generate energy...except if the container gets screwed up, say goodbye to pretty much everything. 1kg of matter colliding with 1kg of antimatter produces 1.8x10^17 joules...nuclear fusion of 1kg of hydrogen only produces 2.6x10^15.

Sheesh.
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