Slashdot Mirror


China Goes Nuclear

Rei writes "Wired reports that the People's Republic of China has announced plans to build 30 new nuclear reactors by the year 2020, and by 2050 have almost as much nuclear power as the entire world produces today. The reactors are to be pebble bed reactors, in which helium replaces radioactive, pressurized water. A Chinese research institution demonstrated the safety of their test reactor against meltdown by shutting off the coolant."

61 of 1,058 comments (clear)

  1. Nuclear energy works! by (54)T-Dub · · Score: 4, Interesting

    I hope that China can help show the world what a viable source of clean energy nuclear power really is. The "danger" stigmatism that is attached to it is rediculous. The worst nuclear disaster in history, Cherynobl, killed a total of 3,000 people. That includes long term deaths attributed to radiation poisoning and increased cancer rates. Coal mining on the other hand kills around 30,000 people every year in mining accidents alone. Not to mention the pollution and enviromental damage that coal power plants generate. As for the nuclear waste generated aftewards there are a number of clever idea's about how to deal with it including one which disposes of it in the giant fusion reaction that is our Sun.

    Que unfounded paranoia

    warning : sig contains ad you may not like, but i'll give you a gmail account if you sign up ;-)

    --

    "I can not bring myself to believe that if knowledge presents danger, the solution is ignorance" - Isaac Asimov
    1. Re:Nuclear energy works! by sneakers563 · · Score: 4, Insightful
      As for the nuclear waste generated aftewards there are a number of clever idea's about how to deal with it including one which disposes of it in the giant fusion reaction that is our Sun.

      And we all know that rockets never blow up or otherwise fail on launch.

    2. Re:Nuclear energy works! by radixvir · · Score: 4, Insightful

      there are a number of clever idea's about how to deal with it including one which disposes of it in the giant fusion reaction that is our Sun.

      except everyone is way too afraid to put anything radioactive on a rocket. what happens if it explodes and rains down radioactive waste upon a city? i agree however that fear of nuclear power is exaggerated. the only reason china is building plants and the US is not, is because no one wants one in their backyard. in china they dont have much choice in what the government determines for them.

    3. Re:Nuclear energy works! by filth+grinder · · Score: 5, Funny

      And we all know that rockets never blow up or otherwise fail on launch.

      That is why we have Superman to fly the waste up and out of our atomosphere and fling them at the sun.

    4. Re:Nuclear energy works! by kaan · · Score: 5, Informative

      Not only does nuclear energy work, but it is a major source of power all over Europe. For instance, France currently generates 75% of its total power from nuclear sources (from this BBC story). Like many things, nuclear power can be a good thing if it is generated safely, and it can be very dangerous if not. The key is to be safe in how the nuclear power plant is built, operated and maintained.

    5. Re:Nuclear energy works! by SigmaEpsilonChi · · Score: 5, Insightful

      The cost of disposing of waste in this manner would be prohibitive. Burying it is perfectly safe and probably cheaper by a few orders of magnitude. Lifting the Carter administration's reprocessing ban would mitigate the risk considerably as well.

    6. Re:Nuclear energy works! by br0ck · · Score: 5, Informative

      Coal releases more radioactivity that nuclear power anyway.

      From this article, "the population effective dose equivalent from coal plants is 100 times that from nuclear plants."

    7. Re:Nuclear energy works! by Rei · · Score: 4, Insightful

      If it gives me cheap power, YIMBY (Yes, In My Back Yard)! I'm not afraid of the nuclear boogyman, no more tha I'm afraid of the terrorism boogyman. People have to get their fears in perspective.

      --
      I just invaded Grammar Czechoslovakia and duped Grammar Neville Chamberlain; now it's on to Grammar Poland.
    8. Re:Nuclear energy works! by Jeffrey+Baker · · Score: 4, Informative
      Talk about disingenuous. Coal power needs a contiuous feed of billions of tons of coal. Nuclear power needs tiny batches of fuel periodically.

      In 2000 64,000 tons of Uranium were consumed, while 3,600,000,000 tons of coal were produced. Even if Uranium and coal posed the same danger to miners, there'd be about one-fifty-thousandth the deaths.

    9. Re:Nuclear energy works! by ArbitraryConstant · · Score: 4, Insightful

      Their government has no choice. Their oil imports are expanding a lot, and oil is expensive enough as it is.

      --
      I rarely criticize things I don't care about.
    10. Re:Nuclear energy works! by Cecil · · Score: 4, Insightful

      I used to live near a wind power plant, what the hell are you talking about? Have you been watching too many cartoons? 40ft fan blades turning at 5 rpm make no meaningful noise whatsoever.

      Any overclocker would know that the noise a fan makes is proportional to the rpm of the fan, or inversely proportional to the size of the fan if you keep airflow constant. Besides, the reason fans are loud, aside from the motors themselves, is because they are creating air motion, aka sound. Outside, there is already a hell of a lot more air motion than a fan could ever hope to make, we call it wind, and it's already loud.

      Where does all this misinformation about wind power come from? (I'm from Alberta which is, from my anecdotal evidence, one of the most wind-power-friendly places in Canada)

    11. Re:Nuclear energy works! by moreati · · Score: 5, Informative

      Read up on the reactor design they're using, Pebble Bed Reactors.

      These are not your traditional nuclear reactors, they don't suffer from a run-away failure mode, they're designed such that even if all control rods are removed and the coolant gets shut off the increased temperature itself slows down the reaction to a stable idle - below the temperature at which the fuel or reactor melts. Ie they inherently can't blow up or go into meltdown.

      Additionally the coolant used is helium, an atom that has very low neutron absorbtion, meaning in the case of a leak there is no atmospheric or groundwater contamination.

      Additionlly-additionally the nuclear fuel is at a much lower density, compared to a conventional reactor, greatly simplifying refueling and disposal. Each 210 g pebble contains 9g of uranium grains, sealed inside an exetremely tough ceramic casing that doesn't burn or break - hence no radioactive dust or smoke in an accident.

      These things seem very safe and very clean. My main concern will be the lack of public criticism and independant oversight in a country such as China.

      Alex

    12. Re:Nuclear energy works! by Ralph+Wiggam · · Score: 4, Insightful

      IIRC, France is scaling back their nuclear power generation. The only countries I can think of with a serious commitment to nuclear power are France and Japan.

      This is an incredibly smart move by China. They can clearly see the problems our dependence on foreign oil has caused. When oil hits $75/barrel in several years, Americans are going to look at China's cheap nuclear power facilities and say "Why didn't we think of that?".

      -B

    13. Re:Nuclear energy works! by Proc6 · · Score: 5, Funny

      It depends. If the fallout grows second sets of arms on everyone, cleanup will take half as many people!

      --

      I'm Rick James with mod points biatch!

    14. Re:Nuclear energy works! by mpcooke3 · · Score: 4, Insightful

      We have nuclear waste buried in certain places in the UK.

      A few things worry me about it.

      Firstly: It appears we have some of the stuff wrapped in aluminium foil and aren't entirely sure where it is.

      Secondly: Some of this stuff will be dangerously radioactive for longer than any form of government has been in existence for. Realisticly this means there is no gurantee we can successfully pass the information on about where we have buried the stuff for the required length of time.

      Possibly we are intentially hiding (read: losing) this information because the companies don't care or possibly to avoid terrorism. OR maybe both.

    15. Re:Nuclear energy works! by demachina · · Score: 4, Informative

      "Burying it is perfectly safe"

      You gotta be kidding. You must go to the ostrich school of nuclear waste disposal, just bury it, out of sight out of mind, trust us it will be OK.

      I'm 100% for nuclear power because its ones of the few ways your going to produce power for this planet once fossil fuels run out but you either need to develop clean fusion power or figure out some way to really deal with the deadly waste from fission reactors. As some have pointed out China's government can probably sweep it under the rug for a while, they can store it wherever they want and imprison anyone who complains, but it is a problem that for all practical purposes never goes away.

      Most of the high level toxic waste that was supposed to go to Yucca Mountain will be lethal for up to a quarter million years. It will probably outlast civilization as we know which hasn't lasted 10,000 years yet. One of the study issues for Yucca Mountain is how do you mark deadly waste so that someone ten thousand years from now will deduce that is lethal and leave it alone.

      There was marked low level waste in a UN sealed site in Iraq from the 1980's. As soon as anarchy broke out after the invasion looters went in and dumped it all over the place in order to steal the barrels, poisoning themselves and the whole area.

      The only way you can bury it is to find container technology that will hold it for tens of thousands of years, unattended, and we simply don't have it. As soon as a container corrodes, cracks or otherwise ruptures that waste is going to be headed for the water table and when it reaches the water table it travels and it poisons everything over a wide area. There have been bad attempts to engage in short term storage of waste at most of the nuclear weapons sites in the U.S. and the U.S.S.R and they are littered with case of corroded and ruptured containers. We really haven't been able to store waste 50 years let alone tens of thousands of years.

      The U.S. has spent billions studying Yucca Mountain and its failed miserably in meeting the criteria as a long term waste disposal site and in the U.S. there is no alternate sight in consideration.

      From a Mother Jones article on the plight of Nevada and Yucca Mountain:

      Repealing the Apocalypse

      Once again, it was the water that was the problem, only this time it wasn't a shortage. Yucca Mountain, it turned out, was all wet, and a truly lunatic place to put seventy-seven thousand tons of high-level nuclear waste.

      The government created the nuclear power industry with a promise to reactor operators that the essential crisis of the industry, the dangerous, exceedingly long-lived waste it produces, would be taken off their hands. In all the subsequent decades of nuclear power production, spent fuel rods have been piling up in "cooling ponds" onsite, while the operators waited for the government to make good on its promise to get rid of the stuff (mostly located in the population-heavy, resource-light East). Three New England reactors are already suing the government for failing to come up with a dump.

      For more than two decades, the Department of Energy (DOE) has done everything it can to create one of the most scientifically dubious dumpsites imaginable, at Yucca Mountain, about ninety miles north of Vegas on the northern edges of the Nevada Test Site, where all those nuclear bombs were detonated (and will be again if Bush has his way).

      The initial plan was to compare sites in three western states and choose the safest one, but two of the states -- Texas and Washington -- had the political clout to get out of the competition. So the "comparative study" never studied anyplace but Yucca Mountain, and yet the longer it was studied the less suitable it seemed even for the mandated 10,000 years it was supposed to keep us and the waste apart (forget the quarter million years the stuff would actually remain dangerous). Somehow, this never seemed to stop plans from proceeding. For a lot of geologists, the fact tha

      --
      @de_machina
    16. Re:Nuclear energy works! by ikegami · · Score: 4, Interesting

      I must agree! And so does the wildlife: There's about a dozen deers living within the fenced area around the Bruce "B" nuclear power plant here in Ontario. And why not! the radiation levels around nuclear power plants are *lower* than those found in cities.

    17. Re:Nuclear energy works! by aardvarkjoe · · Score: 4, Informative

      In the short term, nuclear power is a coal-killer, not a oil-killer -- oil only accounts for something like 2-3% of electricity generation in the US; coal accounts for 50%. In the long term, however. nuclear power can reduce the need for oil. (For instance, it can provide the cheap energy needed to create fuel cells, charge batteries, and other alternative methods of powering vehicles.)

      --

      How can we continue to believe in a just universe and freedom to eat crackers if we have no ale?
    18. Re:Nuclear energy works! by Anonymous Coward · · Score: 5, Informative

      I know a bit about Yucca Mountian. My uncle was a concrete engineer working on lining the whole damn place with spray concrete. (got some awesome pictures), and I know the guys the designed those containers to be stored there, and I also know the guys the designed the filters to trap those heavy metals, once they become water borne.

      MOST of the stuff disposed there is cleanup stuff. Cloths. Rags. Containers. ***REALLY*** mundane stuff. The next biggest percentage is those filters that I mentioned earlier. Every ounce of radioactive non-volatile fluid to be buried is first run through what basically amounts to a HEPA filter for water. So, those particulates infact become solid waste. What's left of the water is boiled off, and the remnants get packaged too (mostly regular mineral deposits)

      The high level wastes are encapsulated in glass or copper in such amounts that there is not enough for that material, or it's decomposited forms to cause a situation of critical mass. Lots of radioactive stuff in one spot can cause quite alot of heat, right? So they limit the quantities of high level radioactive waste to a certian amount PER CONTAINER. Fortunately, Very very very very *VERY* little of what is buried is this form of waste. Less than 20%, and maybe 2% of any given container is highly radioactive... And quite honestly, most of the stuff they treat like this does not at all really need to be treated so carefully.

      If Carter's nuclear recycling ban was lifted, that 20% number could be easily dropped to 5% or probably less.

    19. Re:Nuclear energy works! by demachina · · Score: 5, Informative

      Chill friend. First off I was pointing out the insanity of someone saying we can just bury it, and the insanity that is Yucca Mountain which is basically just burying it.

      Reprocessing it is a whole different and more complicated thing. The issue with reprocessing are so complicated and varied you aren't going to do it justice in a Slashdot thread.

      Depending on the methods you choose you still get waste of various forms, different waste sure, but there is still a lot of waste from reprocessing. In particular you are going to get plutonium of various grades from weapons grade to plutonium suitable for fast breeder reactors. The only way you get rid of the plutonium waste in the near term is to put in bombs or burn it in reactors designed to burn it.

      A key reason reprocessing has such a stigma attached to it is its historically and still is in some places used to harvest weapons grade plutonium. It is a key avenue for nuclear weapons proliferation and weapons grade plutonium is far more dangerous in the wrong hands than the waste so its not like you want every country on the planet doing it.

      There is some value in the way reprocessing its being used in France, India and Japan to recycle the fuel and reuse it in fast breeder reactors but there a whole set of issues with that path two.

      Pyroprocessing is the new holy grail and it might prove to be a better route than the current PUREX and UREX reprocessing but its not exactly a proven process and it a potential accident waiting to happen too.

      Here is a technical brief on the methods though its written by a pro nuke group and needs to be taken with a grain of salt.

      You might be able to reduce the dangerous lifespan of a of of waste to 500-1000 years, and burn some of it in reactors but to hold it out as the final solution to nuclear waste is a stretch at this point.

      --
      @de_machina
    20. Re:Nuclear energy works! by demachina · · Score: 5, Informative

      Natural uranium is only slightly radioactive. It has to by mined in huge quantities and purified to produce weapons grade uranium and reactor fuel.

      Most of the waste we are talking about here isn't uranium, its plutonium and a host of other exotic metals and isotopes. Plutonium is lethal in extremely small quantities, and with reprocessing its highly sought after to produce nuclear weapons or dirty bombs. You can't just dump it back in a whole in the ground. Like most things you dump in the ground there is a high probability some of its going to end up in the ground water which people drink, and is used in agriculture to grow food for people to eat.

      --
      @de_machina
    21. Re:Nuclear energy works! by yiantsbro · · Score: 5, Funny

      "...Realisticly this means there is no gurantee we can successfully pass the information on about where we have buried the stuff for the required length of time...."

      Hell, in America screwing future generations of humans is a primary operating principle...and we like it that way :)

    22. Re:Nuclear energy works! by Mikkeles · · Score: 4, Funny
      'One of the study issues for Yucca Mountain is how do you mark deadly waste so that someone ten thousand years from now will deduce that is lethal and leave it alone.'

      This looks like a job for goatse.cx!

      --
      Great minds think alike; fools seldom differ.
    23. Re:Nuclear energy works! by Anonymous Coward · · Score: 5, Informative

      > This is startlingly good news for Nevada.
      > Scientists have always said that Yucca Mountain
      > was a disaster-in-the-making, even leaving aside
      > those 50 million Americans living within half a
      > mile of the shipment routes the Yucca-bound
      > nuclear waste would travel on for decades to come,
      > or the 90 to 500 estimated accidents of unknown
      > scale that statistics suggest would take place en
      > route over the years. (Who needs terrorist dirty
      > bombs when our own tax dollars can supply them?

      I call FUD. Have you *seen* the containers that they've created to hold the nuclear waste? They've taken them and rammed them into walls at 80 MPH on the top of tanker trucks, dropped them on large iron spikes, fired SAM missles at them - all to no avail. Hardly made a dent in them.

      These things are multi-million dollar containers that are about an order of magnitude thicker than your average tank. Given that they are going to be escorted by police and military convoys, I sincerely doubt that anything serious is going to happen.

      I truly worry about the US if we let ourselves fall behind on this - misplaced anxiety is really going to do us in in the next century. I can only hope that calmer heads prevail.

      horos

    24. Re:Nuclear energy works! by cheesybagel · · Score: 5, Informative
      Most of the high level toxic waste that was supposed to go to Yucca Mountain will be lethal for up to a quarter million years. It will probably outlast civilization as we know which hasn't lasted 10,000 years yet. One of the study issues for Yucca Mountain is how do you mark deadly waste so that someone ten thousand years from now will deduce that is lethal and leave it alone.

      Geez. Another one. Please get an education in physics or read the radiation hazard page at Wikipedia. The worst part of the waste is not the one with the long half-life elements (i.e. Plutonium, Uranium). But the short half-life elements (Iodine-131, Strontium-90).

      Usually the faster something decays, the more radiation it releases per unit of time. Something that takes a long time to decay is usually just somewhat warm to the touch. Like plutonium.

      The ultimate proof of course, is that elements with an infinite half-life (want even higher half-life than that?) like Au-197 (plain Gold) emit zero radiation.

      If you just leave the waste in a pile, it will eventually be a very pure tolerable radiation hazard uranium + plutonium mine and a very valuable resource. The shorter half-life elements will have decayed already.

      Regarding Plutonium toxicity, it is way overblown. Sure it is a heavy metal, so is Lead, yet we don't get into a hissy fit about it. Last I heard, they still used Lead to make solder. You aren't going to be allowed to make plates and forks from the stuff, or have it in easily inhalable or drinkable powdered or soluble form (like they used to have in Gasoline), but as long as you use proper procedure it is not that big a deal.

    25. Re:Nuclear energy works! by AJWM · · Score: 5, Insightful

      Firstly: It appears we have some of the stuff wrapped in aluminium foil and aren't entirely sure where it is.

      A Geiger counter might help there. If you can't detect it, you probably don't need to worry about it.

      Secondly: Some of this stuff will be dangerously radioactive for longer than any form of government has been in existence for. Realisticly this means there is no gurantee we can successfully pass the information on about where we have buried the stuff for the required length of tim

      So? Human-built structures have been around for longer than any form of government has been in existence for. The Egyptian pyramids, or Stonehenge, among others. Just build a pyramid on top of the stuff, with appropriate warnings about it being cursed. ;-)

      Besides, there's an inverse relationship between the intensity of emitted radiation and how long that radiation lasts. Potassium (K40) is radioactive with a half-life in the billion year range, but the intensity is generally negligible. (I once read that you'll pick up more radiation from sleeping with somebody (from their K40) than you would living next to a nuclear plant, but I haven't done the math.)

      --
      -- Alastair
    26. Re:Nuclear energy works! by demachina · · Score: 4, Informative

      I stand somewhat corrected. Though here is a source that suggests wikipedia is downplaying its danger somewhat. Excerpts are below.

      I guess I'll chalk my wrongness up to media and public antipathy to nuclear power. But that antipathy rose for a couple pretty good reasons. Fission reactors have in fact proven very dangerous numerous times so no one trusts them any more, or the people that build them and advocate them. Three Mile Island and Chernobyl killed fission reactor credibility. Three Mile Island was noteworthy because they came close to a Chernobyl scale accident and the people involved were lieing about the danger and what was happening throughout. Chernobyl's left a dead zone that shows what Three Mile Island could have done if it had gone only slightly further.

      The problem is maybe the new designs are safer but at this point no one believes it or is going to trust them. The nuclear industry assured us the old ones were safe and they weren't so they've burned their credibility. The fact is most existing reactors are complex systems, they are extremely fallible and they've proven themselves to be extremely dangerous. How are you going to convince people they are safe at this point. China can do it because they don't have to convince anyone, they can just build them and deal with anyone that complains.

      From the LBL source above:

      Ingestion of plutonium

      For acute radiation poisoning, the lethal dose is estimated to be 500 milligrams (mg), i.e. about 1/2 gram. A common poison, cyanide, requires a dose 5 times smaller to cause death: 100 mg. Thus for ingestion, plutonium is very toxic, but five times less toxic than cyanide. There is also a risk of cancer from ingestion, with a lethal doze (1 cancer) for 480 mg.

      Inhalation of plutonium dust

      For inhalation, the plutonium can cause death within a month (from pulmonary fibrosis or pulmonary edema); that requires 20 mg inhaled. To cause cancer with high probability, the amount that must be inhaled is 0.08 mg = 80 micrograms. The lethal dose for botulism toxin is estimated to be about 0.070 micrograms = 70 nanograms. [1] Thus botulism toxin is over a thousand times more toxic. The statement that plutonium is the most dangerous material known to man is false. But it is very dangerous, at least in dust form.

      How easy is it to breathe in 0.08 mg = 80 micrograms? To get to the critical part of the lungs, the particle must be no larger than about 3 microns. A particle of that size has a mass of about 0.140 micrograms. To get to a dose of 80 micrograms requires 80/0.14 = 560 particles. In contrast, the lethal dose for anthrax is estimated to be 10,000 particles of a similar size. Thus plutonium dust, if spread in the air, is more dangerous than anthrax Ð although the effects are not as immediate.

      This source also has an interest section on breeder reactors:

      Breeder reactors

      The Pu-239 is usually not considered nuclear waste, because it can be used itself to run a nuclear reactor. It is nuclear fuel. Moreover, if you put it in a nuclear reactor, you get three neutrons per fission instead of two. In a reactor, operating at constant (not exponentially growing) power, you want only one neutron per fission to produce another fission. What do you do with the extra two neutrons? Answer: put U-238 in the reactor, and make more plutonium.

      Thus a reactor can make (out of U-238) more Pu-239 fuel than it consumes! Such a reactor is called a breeder reactor. It has the potential of turning all uranium, not just 0.7% of it, into nuclear fuel, and thereby increase the available fission fuel by a factor of 140.

      There has been public opposition to breeder reactors. The two most common objections are:

      1. The plutonium economy. Breeder reactors would allow much greater use of nuclear power, but it means that plutonium would be widespread. Besides the fact that plutonium is ra

      --
      @de_machina
  2. Nice by GypC · · Score: 4, Interesting

    Yes, pebble bed reactors are very safe.

    I just wish nuclear power wasn't politically dead in the USA. It's really the only way to replace all the coal and oil we burn to produce the huge amount of electricity we use.

    1. Re:Nice by Neophytus · · Score: 4, Interesting

      I read a statistic once. Had we been able to harness all the uranium released from burning coal for fuel since 1970 and created reactor grade material, we could have created approx. the same amount of electricity as the coal burning itself.

  3. Couldn't be done in U.S. by Talondel · · Score: 5, Insightful

    China might actually be able to pull something like this off at a reasonable price. In the U.S. this would never get done. Between the "not in my backyard" protests, and over-regulation, the time and cost would simply be too great. Not that I like China's government, but there are certain advantages to their style.

    1. Re:Couldn't be done in U.S. by mrchaotica · · Score: 4, Informative
      But the point is that a pebble bed design doesn't risk a disaster! From Wikipedia:
      he primary advantage of pebble bed reactors is that they can be designed to be inherently safe. As they get hotter, the fissionables' molecules move faster, widening the range of speeds of the nuclei. The neutrons are less likely to interact with very fast nuclei, and the reactor's criticality falls. The reactor vessel is designed so that without mechanical aids it loses more heat than the reactor can generate in this idle state. The design adapts well to safety features (see below). In particular, most of the fuel containment resides in the pebbles, and the pebbles are designed so that a containment failure releases at most a 0.5 mm sphere of radioactive material.
      --

      "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz

  4. Excellent news by turgid · · Score: 5, Insightful
    This is wonderful news for China, the environment and nuclear scientists and engineers the world over.

    China is showing that it is forward-thinking enough to look beyond fossil fuels for its electricity. This can only be good for the environment and global warming in particular.

    I hope this reopens the nuclear power debate in the West. The USA and Europe should seriously consider comitting to new nuclear power plants for both economic and environmental reasons.

    1. Re:Excellent news by cdrguru · · Score: 4, Insightful
      Come on, face it. The "real" solution to both all our environmental problems and global warming is to simply scale our use of resources back to the point at which it wasn't a problem.

      I believe if the Earth's population was at the level it was in 1850, there would be no environmental problems and no global warming.

      It might be difficult to convince the rest of the world that this was the solution, however. It seems like the "solution" proposed by most is that "those guys" are using too many resources and need to be "scaled back", sometimes drastically. Sort of how Dresden was "scaled back" in WW II. We need to take the initiative and show the rest of the world that we are forward looking enough to address the problem unilaterally.

      Of course, this means we need 75% of the US population to report to euthanasia centers, but what the heck, we are talking about the survival of the planet here.

  5. USA syndrome? by MrMr · · Score: 5, Funny

    Isn't that what they call running a reactor without coolant until meltdown in China?

  6. Hopefully they stay the course. by Foggiano · · Score: 5, Insightful

    China's need for energy in the future is going to be enormous, and I'd much rather see it produced by nuclear fission than by buring coal. No matter how bad you might think nuclear power is, buring coal is even worse.

  7. Good! by American+AC+in+Paris · · Score: 4, Insightful
    Take a look at the current fossil fuel situation We're bumping right up against maximum output, and China's energy needs are growing rapidly--and showing no signs of letting up any time soon. (Same goes for the rest of Asia, for that matter.)

    You think China -or- the US wants to duke it out over $100+ barrels of oil in the next few years?

    --

    Obliteracy: Words with explosions

  8. Space by daeley · · Score: 4, Funny

    A Chinese research institution demonstrated the safety of their test reactor against meltdown by shutting off the coolant. ...thus creating in an explosive instant the second thing in China you can see from space. ;)

    --
    I watched C-beams glitter in the dark near the Tannhauser gate.
  9. stop comparing these to Chernobyl by Tumbleweed · · Score: 5, Insightful

    These are a completely different design (which is the whole _point_) than regular reactors. Pebble bed reactors have small 'pebbles' (billiard ball-size) with little flecks (0.04", if I remember correctly) of Uranium in them - putting them in the pebbles keeps them spread apart, and makes it (dare I use the word) 'impossible' for a meltdown to occur, such as Chernobyl. There is no radioactive water or cooling rods in this design, and the pebbles are designed for a million year life, plenty of time for the radioactivity to lose its lethality, so storage of the used pebbles is _much_ easier than with current nuclear reactor waste. The university in Beijing that has been developing this has had a plant running for around ten years, with no problems, and, as mentioned, shut down the cooling system to prove that it's safe.

    This is a really great development, and I hope it gets presented accurately in the press. The Wired article is very well written, though the blurb on the cover about the relationship between these plants and hydrogen is completely bogus. There is no more relationship between these plants and hydrogen than there is between any other power source and hydrogen.

    1. Re:stop comparing these to Chernobyl by Anonymous Coward · · Score: 5, Informative

      It's also important to note WHY it's safe to shut off the cooling system. Pebble bed reactors are LESS reactive without the coolant, therefore they 'starve' themselves if they overheat (yeah that was for the layman). Thus it is safe to remove the coolant from a pebble bed reactor.

  10. 2050? by FlipmodePlaya · · Score: 4, Funny

    Jeez, have we learned nothing from Sim City 3000? By the time they finish this thing, the rest of us will have fusion power.

  11. prediction by flacco · · Score: 4, Funny

    i bet the local walmart will take on a subtle, eerie glow at night.

    --
    pr0n - keeping monitor glass spotless since 1981.
  12. this is a very good thing by circletimessquare · · Score: 5, Interesting

    the antinuclear crowd doesn't seem to understand how advanced nuclear technology is today

    these pebble bed reactors just can not melt down, the design is such that their no possibility of a run away self-sustaining chain reaction taking hold

    do antinuclear types like the alternative? middle east conflicts fueled by oil prices? air pollution and smog?

    and proponents of green energy do not seem to understand their science: you can't scale up geothermal, wind, solar, tidal, ocean thermal gradient, etc, to meet one tenth of the modern world's energy needs

    the much vaunted vaporware hydrogen promise: where do hydrogen proponents think the hydrogen comes from? i don't know why people don't understand such a simple concept: you need to spend more energy freeing hydrogen from water or hydrocarbons than anything you gain from using it as an energy medium

    biodiesel sounds interesting to me, and fusion is always the holy grail, but these are unproven technoogies today... if you are a true green energy believer, then get to work here, and roll up your sleeves working on fusion or biodiesel: this is where the most promise lies for your efforts

    and of course, the "just use less energy" crowd: when you figure out how to tell people to stop using gas and nuclear and start riding bikes, get back to me

    meanwhile, i applaud the chinese, they see the writing on the wall: an overactive economy, demanding more and more gas and coal, and skyhigh oil prices and a volatile middle east... for the chinese, a pebble bed reactor commitment is a no-brainer

    now if only the nimby types in the us could understand the wisdom of embracing pebble bed nuclear energy to combat reliance on middle east oil

    but of course, simple fear of the unknown and ignorance of simple tech means the us will be left dependent on volatile undependable oil and gas and coal, while the chinese enjoy a safe, stable, cheap energy source

    apparently, the nimby crowd in the us sees less risk in sending their sons and daughters to iraq than building a nuclear reactor of new design without any chernobyl or 3 mile island implications

    this is not silkwood or the china syndrome folks, the stakes are accutely high in today's world: adjust your antinuclear opinion appropriately please

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
  13. Better than what they do now... by dykofone · · Score: 4, Interesting
    I did some work designing steam turbines for power plants, and one of our main customers was China. They were hitting an industrial boom and needed power like crazy, and also happened to have ridiculous amounts of coal. Problem was, this coal was considered poor quality because of the large amounts of sulfur, so it wasn't fit for exportation. Instead, they bought a bunch of 30 year old inefficient turbines and would pretty much throw the shitty coal out of the ground and into the burner.

    I think this is a much much better solution for them, both economically and especially environmentally. There were stories that they could only ramp up the turbines from stop(a process that took about 6 hours) at night, because the resulting ploom of yellow sulfur smoke couldn't be seen. Once the burner was at full temperature by dawn, no more yellow smoke, and thus no more concerned citizens.

  14. Like the Sellafield reprocessing plant? by Anonymous Coward · · Score: 5, Interesting

    The place which falsified QA records for years and dumped waste into the Irish Sea?

  15. Re:Now only if... by Stevyn · · Score: 4, Insightful

    Exactly.

    These people protest and call this a "war for oil". Well when they fight like hell to prevent expansion for nuclear energy, it doesn't leave Bush many options. Remember how Bush wanted to drill in the frozen tundras of Alaska? The Alaskans were on television saying what a good idea this was and that the land they were going to drill was just a frozen tundra anyway.

    Bush and his cabinet have been pushing for nuclear power and moving off foreign dependency for oil all along and people who just jump on the eco bandwagon don't know what they're talking about half the time.

    More radiation has leaked into the environment from burning coal then nuclear waste. More people have died as a result of coal mining and oil drilling than from nuclear power. We spent all this money years ago to develop nuclear power and now no new plants are being built because of these enviro-nuts.

  16. Re:Seems much more of a threat to the US than Iraq by glsunder · · Score: 4, Funny

    turn something sitting on your desk upside down,

    it says: 32 ounce.

    aw crap.

  17. It does, and as far as I know... by Kinniken · · Score: 4, Insightful

    ...there has never been a fatal casualty in the French civil nuclear program, which has been running for at least thirty years. End result? We are the only major EU country to produce more energy than we need, and make quite a lot of money selling it to our neighbours. Our biggest client? Germany, forced to import electricity from us after declaring the country a nuclear free zone... lol.
    As for the whole "yeah but you don't want to live next to one", true enough but on the whole I would rather live close to a nuclear power plant than close to a coal or oil one.

    --
    What do you know about World Politic? Find out in this quiz
  18. How about supergun or space elevator? by Dr_Marvin_Monroe · · Score: 4, Interesting

    I keep hearing stories about the Japanese working on some type of orbital projectile launcher, same type of thing Gerald Bull was working on before his untimely death. I don't know if they are true, but this would provide a safe way of getting non-human cargo to orbit without the risk of explosion. Encased blocks of radioactive waste could be shot to orbit, then nudged towards the sun by an orbiting sat.

    How about the space elevator I keep hearing about here on Slashdot?... No explosive danger there either! Small/medium sized containers could be hoisted to orbit, then directed towards the sun with just a little force. Could make the containers or lift cars with some type of balistic parachute too, so if the cord breaks, the containers land safely in the sea where they can be recovered without exposure.

    I'm not too fond of the idea of exploding radioactive bottle-rockets, but the way things are going, we may not have to think like that for too much longer. There are lots of new technologies that could help us safely get our waste to the sun. Best part about that...it's not on earth anymore! No need to worry about theft from the terrorists now and no need to worry about warning the the rabbit-people 50,000 years from now. Yucca mountain may just become a "low-level" waste type site for materials that just don't need to be hoisted to the sun, like all those slightly used Tyvec suits and minimally contaminated whatnot.

    The idea of putting our nuclear waste on the sun isn't so far fetched. We just need to come up with a safe way of handling it until it gets there.

    1. Re:How about supergun or space elevator? by Sylver+Dragon · · Score: 4, Interesting

      I'm all for the "get it off the earth" idea, but why is everyone so dead set on sending it into the Sun?
      Dump it on the Moon. It's still safely out of the hands of bad people, it still won't get into the ground water, and despite Jules Vern's stories, there is nothing living there to care about the radiation. Plus, this has the added benefit of being retreivable. Who knows, in a few hundred years there may be a good use for all of that stuff, or a good way to recycle it. If it's on the Moon, all it requires is a short trip, and a nice stroll in a spacesuit, to get it back; if it's in the Sun, its a further trip, a more difficult landing, and the stoll in the spacesuit is far less comfortable. <bad joke>Unless we go at night, but landing in the dark would suck.</bad joke>
      In the end, I think nuclear power is inevitable. Sure, solar, wind, and geothermal have their place, and maybe a big one, but we are still going to need nuclear to fill in the gaps.

      --
      Necessity is the mother of invention.
      Laziness is the father.
    2. Re:How about supergun or space elevator? by Caseyscrib · · Score: 5, Insightful
      I'm disappointed that no one has mentioned that we can cut our energy demand by at least 30-50% by simply *saving* energy. On my way home from work I see lights on all over people's houses and nobody is using them. People don't carpool to work, instead they take their 12 MPG SUV. People waste an incredible amount of everything, and instead of asking "how can I use less", the question is, "where do I get more?"

      We have recycling and reusable goods, but its more convient to throw it in the trash. All of this trash has to go somewhere, and nobody seems to care. There's many reasons to conserve: You save money, the environment, and feel good about it. I'm not anti-science, but I feel like 95% of the crap we manufacture today is complete crap. We live in huge houses, own 4 cars per family, several TV sets and multiple computers. We've gotten all this stuff within the past century. Before that, we didn't even have electricity. Its disappointing to see that because we can spend more, we feel that we must consume more. There's a direct correlation between the two and I would like to know why.

  19. Re:Safety test by Tmack · · Score: 4, Informative
    Go read what a pebble bed reactor is and then you probably wouldnt ask that question. Pebble beds use pebbles of a radioactive fuel mixture thats part uranium and part mediator. Where most reactors use fuel rods of highly concentrated uranium, with mediator rods between them that are moved in and out of the core to control the reaction, these pebbled basically have the control rods built into the fuel. They are designed such that they increase power only if the coolant is flowing, thus they are inharently safe. If the temperature goes up, the reaction slows and the reactor gives off more heat than it creates. The only "safety device" would be a failure to turn off the coolant, in which case the coolant would be taking the heat away from the reactor anyway, but might heat some other areas of the plant unexpectedly (heat exchangers/turbines/etc).

    Tm

    --
    Support TBI Research: http://www.raisinhope.org
  20. REALITY by SatanicPuppy · · Score: 4, Interesting

    We can't live without it at this time.

    REALITY 2:
    All the plants in this country have run past their intended design lives, AND are 30-40 years out of date with modern technology.

    REALITY 3:
    Modern bead reactors of the type the chinese are building are VASTLY less likely to meltdown than any reactor currently running in the US. The coolant in a bead reactor actually catalyses the reaction, so without coolant, there is no reaction.

    People in this country are totally irrational when it comes to nuclear power. We need this stuff, if only to replace the seriously aging reactors we already have. This is one place where I want to beat the snot out of all the left-wingers who won't be happy with anything that doesn't run on fairy dust and pot.

    --
    ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
  21. Australia missing its mark by The+OPTiCIAN · · Score: 5, Insightful

    I'm disappointed Australia can't get elbow-deep into nuclear technology. We've got the best disposal sites, high-yield uranium sites and the second worst rate of greenhous emissions per-capita behind the USA. We could have centres of excellence in nuclear technology in universities around the country, turn Whyalla into a boom-town by importing and disposing nuclear waste, build energy plants in the middle of the desert and export green-house-friendly energy around Asia. Yet every time anything 'nuclear' comes up people have a hysteric response against it.

    For more than a decade, the federal government have been unable to create low or medium-sized respositories for nuclear waste anywhere in the country. Every time the issue comes up opposition parties (including of course so-called green parties) hammer it for all its worth from the most superficial angles imaginable. Even the South Australian Liberal government got in on the act a few years ago, chanting "Not in *our* back yard" despite the middle of the Australian desert being no closer to Adelaide than high-level nuclear stores in France are to Prague.

    So instead we have low-level nuclear waste scattered in sites all around the metropolitan area of several cities, which leads to situations like that of us having substantial waste stores sitting in the bottom of the university of Adelaide and Royal Adelaide Hospital, both of them right next to a river. This inconsistency is one of many that shows up scum political forces who harvest stupid people's irrational fears about nuclear issues.

    If Australian green politicians were genuinely passionate about our global environmental responsponsibilities they'd be comfortable with the idea of Australia as a major player in nuclear power and as a site for waste disposal.

    The above opinions guarantee I would have no hope of ever making it in politics. :)

    --


    Believe with me, my saplings.
  22. Re:Communism is good for something by globalar · · Score: 4, Interesting

    OT, but China is not so much communism as authoritarianism. Yes, the communist party is in control and yes the propoganda is alive. But communism implies more than simply a government - it's a social structure.

    You ask who cares?

    Well, China is playing a game of accepting limited market economy while still controling many economic things, including some prices, as it sees fit. China is accepted by business interests because it has made committments to the WTO and other institutions. However, it is still classified as a developing country and therefore gets a lot of slack from the WTO. This also means it gets a lot of development loans at great rates and other things. If all it did was preach communism, it would not be in this position. There have been real changes in China, some incomplete, but many progressive.

    Regardless, Lenin, Mao, Marx, etc. would probably not consider current China (PRC) communist. If communism to you means a socialist state controlled by one party of elites and the military interactive in the market economy, then yes it is. Otherwise, I wouldn't so easily label it.

  23. See, the thing is by mcc · · Score: 4, Insightful

    It just happens there's a gray area between "banning something" and "allowing something to occur without oversight".

  24. The Canadian Shield by Anonymous Coward · · Score: 5, Interesting

    You can bury it in the Canadian Shield. They've studied it and 10,000 years is miniscule compared to how stable that is. Solid granite for thousands of meters. Drill, Drop, fill it in. It won't go anywhere for eons.

    1. Re:The Canadian Shield by gnuman99 · · Score: 4, Insightful
      Some of the rock is solid (no cracks) for cubic kilometres. It dates back a over billion years.

      But the point is, why put it in long term storage? We might want the stuff in a hundred or two hundred years. Just look at what happened with the "useless" oil - was useless two hundred years ago.

    2. Re:The Canadian Shield by demachina · · Score: 4, Interesting

      Does any of the Canadian Shield extend in to the U.S.?

      What do you think the chances are Canadians are going to tolerate the U.S. and the rest of the world shipping their nuclear waste to Canada for disposal. The problem with nuclear waste is the stigma is so bad no one wants it near them even if someone does figure out a safe way to store it or reprocess it.

      I'm a little skeptical any mine shaft will prove long term viable. Its extremely hard to keep them dry, especially if you allow for the possibility that the civilization that has to fund maintaining the storage site may not last as long as the waste.

      --
      @de_machina
  25. Why? by Sycraft-fu · · Score: 4, Informative

    We have very few oil power plants. The majority of our power comes from coal which is cheap and very abundant within our own borders. Natural gas and oil are also used (as well as nuclear) but coal is the main non-nuclear source.

    That, combined with the scare factor, is the reason the US is so bleh about nuclear power. We have coal, more than we can use in a long time, so why not just keep burning it? I mean nuclear is all evil and scary and shit.

    But no, oil going up won't crunch our grid, it'll crunch our cars.

  26. Please inform yourself. by Mike+Van+Pelt · · Score: 4, Informative
    As soon as a container corrodes, cracks or otherwise ruptures that waste is going to be headed for the water table

    As soon as you write this, it's clear that you are Not Paying Attention. At all. The disposal plan is to mix the waste into molten glass and/or ceramic, and cast solid lumps of this glass or ceramic. This can not corrode (natural glasses (tektites) are known to survive unchanged for over a billion years in sea water) there's nothing to rupture, and if it does crack, so what? You've just got two little lumps of impervious radioactive glass instead of one big one.

    What everyone else said about the silly hyperbole of it being dangerous for "a quarter million years"...
  27. Warmonger problem! by mabhatter654 · · Score: 4, Insightful
    The REAL problem is that all of the US efforts at nuclear energy are mearly thinly-veiled efforts to beef up the weapons program...they haven't put any serious effort into building reactors that contain the nasty stuff because they want to "play" with it. here in the US they've got everybody so scared they haven't built new technology in 30 years.

    if you look at the examples of "good" nuclear countries like Japan or France they have little or no MILIITARY interest involved in their nuclear programs...so they design to be easy and safe... and are very successful at it. kinda makes you wonder who the "real" good guys are in all this nuclear mess.