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YOU!: Fix the US Energy Crisis |
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| Oct31-04, 04:03 PM | #69 |
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YOU!: Fix the US Energy CrisisAnd in contrast to oil, uranium is ubiquitous in nature. There will not be a sudden decrease as when large oil fields deplete. Just a slow conversion to minerals with lower concentration of uranium. Regarding uranium price, if it increases, it will greatly increase available resources without have a large effect on final energy price. |
| Oct31-04, 09:29 PM | #70 |
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Sure, here's what I remember. General maintenence ends up causing something to go wrong. Ok, no big problems. Pressure builds up and a safety vent allows excess pressure to escape. Still no problem. Safety vent sticks but light in control room goes out as computer merely tells them the signal was sent and not the position of the valve. The pressure drops allowing more coolant to evaporate and temperature rises. Somewhere in the operator training to never let the reactor "go solid" by completely filling with water and the vibrating pumps from low water level the operators drop the control rods and completely shut off flow of water. Designers are unreachable by phone, NRC is unable to get in as only one phone line exists and all they get are busy signals. Power company lies to NRC and public (repeatedely) and downplays extent of problem (no idea on timing here, memory fuzzy). The lies told here seem to be only one step shy of the Soviet government's intial lies about Cherynobl but I digress. Designers of reactor finally get through and tell operators to turn on water, forget the "go solid" or not just get some water in there to get temperature down. Temp gauges only go to 700F but reactor is at 4000F and reaches china syndrome at 5000F and has been sitting without coolant for 15 hours. Estimates are that 30-60 mins more without coolant would have been threshold for meltdown. Carter sends out a direct person from NRC to run the show, finds that now the long running reaction has filled containment room with lots of H2 that could easily explode. Some NRC people thinks its nearly critical, others think its days away. Carter flies out and makes on-site visit since he trusts his man and has experience with nuclear subs in navy. Later NRC people find mistake in calculations and find H2 is days away from critical. One person tries to go in and finds water inside reactor that is to be pure is actually green and bubbling, holding a beaker of it for a few minutes would have killed him and that he measured 10,000 REMs which they said was a lot. Nothing besides robots has gone into building since. So here is my short list of issues I compiled from the show: - Poor training where 'go solid' was placed above meltdown - unclear control interface (light that goes out regardless of valve position) - gauges that do not allow monitoring of temperature (although if its that hot shouldn't common sense overrule 'go solid'??) - no CC cameras at all to see vent or inside the reactor or even the flooded basement as the vent leaked out the water - one phone line - no direct communication to designers Obviously I've left stuff out and maybe got a couple things out of order but anyways it didn't paint a real safe picture of what happened. The message of the shows was that ignorance, complacence, and confidence in technology leaves us vulnerable to failures. They mentioned that the promise was that nuclear power was suppossed to produce electricity so cheap that it wouldn't make sense to meter it. The series of shows went on to feature the Kursk as the sign the russian military lacked the funds to maintain an advanced sub and the space shuttle as a sign that NASA implemented policies that placed frequent missions over the safety of the crew. The NRC and all nuclear facilities are suppossed to have learned from the mistakes made and implemented changes to make things safer. But 3MI and Chernobyl are seperated only be severity and luck in the historic TV shows I've seen and this show shocked me at how close we came to a meltdown. Cliff |
| Nov1-04, 08:38 AM | #71 |
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Obviously, there is always the risk of a serious accident. But the new generations of plants will have greatly reduced risks:
But even today, the risk associated with realistic alternatives like coal are much greater than for nuclear. Both in the form of increased diseases like cancer and effects like global warming. And to not find replacements for oil and gas means the starvation and death for most of humanity. |
| Nov1-04, 01:31 PM | #72 |
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Are less speculative? I would say the speculation is likely the same. I am aware of the new technology for new nuclear reactors but the technology to provide a constant supply of uranium for a very good amount of time is highly speculative. What would be the point to search for an alternative to oil if the resources for the alternative presented ends around the same time oil ends. But let me clarify, i'm not excluding nuclear energy here, what i said already is to make sure there are wider sources of energy available. Now, economists predict the price will go up, nevertheless, and i'll repeat again what i said, it's not linear or automatic that the new technology will appear if the prices go up, this is a wrong assumption, i already mentionated a concrete example. You actually have a contradiction here, if before you assumed that the uranium price will go up, now you're saying IF it goes up. And it's also wrong to assume that the final energy price won't suffer a large effect, i'm not saying it will, i'm just saying you are, again, assuming. Economy can be very complex but it follows simple rules and there are many impredictable factors that we cannot prevent, but don't confuse me with a negativist, this is just what many specialists say, not to mention this is merely common sense. But back to the uranium availability. Sure that uranium is ubiquitous on nature, but that doesn't mean it is possible to make use of all of the mineral. Even the site you provided doesn't make a direct connection. Uranium reserves are well localized, not to mention that there isn't the necessity of many uranium processing facilities as there are for oil refining. The question would be, in my opinion, with the available uranium we have and the capacity to recycle spent fuel (for a maximum of an estimated number of cycles with spent fuel), with other energy sources and other measures already discussed in this thread, how can we reach a more well equally balanced energetic system? Rui. |
| Nov1-04, 02:33 PM | #73 |
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Regarding oil exploration, you are wrong. It is increasing due to higher prices:
http://www.greatfallstribune.com/app...410310305/1046 If you accept breeder technology as you say, using only today's totaly certain and economically usable resources gives 50x60 = 3000 year of uranium. Adding thorium and much more uranium with slightly higher prices and more exploration gives much higher numbers. I agree that we should certainly look at all alternatives, all the way from hydrogen to tides to helium on the moon. But if peak oil is happening this decade, or have already happened, coal and nuclear are the only technology already realistically available. With biodiesel making a contribution as transportation fuel. Actually, since I am a libertarian, I am not advocating any state intervention. Stop excessive regulatiions of the energy sector, stop subsidaries, stop unequal taxes. Let the best alternative(s) win and let the market decide. |
| Nov1-04, 05:25 PM | #74 |
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And this not to mention that the article doesn't make a direct relation or any relation at all that the new technology appeared because of the high oil price. They say that a conjugation of factors, in wich are included the high price, new technologies and tax incentives provide a boost in profits, they never say that the high price caused all that, they clearly say that the high price directly and obviously improves profits. Of course that there is new technology, it evolves every year, but there isn't available any technology capable to extract other forms of reserves, this technology costs a lot of money, it's not profitable. And this is what happens with the estimated uranium reserves for wich most of them would become only available if a high cost technology is developded, and what i'm trying to say here is that uranium reserves to last thousands of years are for the moment irrealistic and that the technology necessary to make use of those reserves don't automatically appear if the price goes up. Regarding the breeder reactors i said i was not ignoring them but i also said that the site in wich you are basing what you're saying is very speculative (not to say biased). But let me repeat one thing, what i said is that the limitation for the use of nuclear plants is the physical available uranium (and this has to do with the technology wich i already discussed) and the economical limitation of the mineral, and not, if the new types of reactors can have a more effecient energy production, but lets not be fooled, this higher efficience doesn't make wonders, even BNFL admits that. Let me also add that if the country where i live presented a project to implent a nuclear central i would support it. We don't have any nuclear central, there was a plan to build one about 30 years ago but unfortunally the activits had a very big impact in the public. Rui. |
| Nov2-04, 10:39 PM | #75 |
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Essentially, they had about everything that could go wrong go wrong and still there was no significant release of radiation. That's why I think it validates the safety of American nuclear reactors. |
| Nov3-04, 03:14 AM | #76 |
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US reactor designs are extremely safe. Add up all the years of operation compared to 'disasters' [think TMI]. NASA would be more than proud to have such a safety record. The politics of nuclear power are a greater threat to public safety than the technology.
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| Nov3-04, 02:22 PM | #77 |
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Funny thing about watching some of these TV shows about historic failure is the "lesson" to be learned from the incident(s). Some things have the string of concurrent failures and some have single points of weakness. Hindsight may be 20/20 but the shows really don't stretch things too much to make parallels between failures.
The TMI show depicted a place designed and operated with the arrogance that no more than one failure mode would occur. I wouldn't expect redundancy on a safety valve or other items involved but lack of monitoring and training/communication on how to read the remaining indicators is frightening. The same shows on the space shuttle disasters need not search to find previously silenced people who were concenered about the particular failure modes before they occured. I'll be the first to admit I'm ignorant about the exact workings of a nuclear power reactor and the failure modes of each piece and how that translates to a catastrophic event. But my faith that all efforts are made to keep things safe is most definitely tempered by the actions of the people involved. For TMI, what if Carter had been overseas? In 15 hours at least one shift change would have been scheduled to occur, an operator couldn't have gone to a nearby phone in a non-stop attempt to reach the designers? And I'm not saying that the top would have blown off the reactor like Chernobyl at TMI, but according to the show once the China Syndrome is reached at 5000 degrees that the core would melt its way through the containment structures and into the earth below it. My understanding is that Chernobyl did this and its effects are still measureable in rivers miles away. That's much more sinister than reading Feynman's arguements about the amount of radioactive particles in the air, that nuclear pollution would enter the food supply and would need to be monitored very closely. We can't even agree if genetically enhanced grains or growth hormone feed livestock are totally safe. Or maybe I read too much chaos theory stuff. Sure the nuclear power industry might pass a Six Sigma test, but man did they group plenty of failures into one incident. I agree that about everything that could go wrong at TMI did and with about as long a time between action/inaction as would ever be imaginable. And how that the control rods did their job (learned from that early army reactor failure?) which was a huge design asset, the containment building minimized leaks and risks so its another asset, and so on. But the human factor scared me the most with the outright lies given by the power company and the lack of urgent action. There are plenty of examples where an designer/engineer would "...go down with the ship..." but TMI is an example to me of an incident where if the engineers had been on-site from the begining reactor #2 would still be operational. The best design can be messed up by poor decisions by the wrong people and NASA has unfortunately become its own case-study in this phenomenon. And in short that is my concern, not that 8 inches of high-carbon steel was used here or other design considerations, but that the people running the show need to be as good as the design. |
| Nov3-04, 03:04 PM | #78 |
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Big changes demand small steps from each of us:
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| Nov3-04, 09:15 PM | #79 |
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Mentor
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| Nov8-04, 08:35 PM | #80 |
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I guess you folks haven't read the July, I think it is, Physics Today. My take on the two articles is two sentences: There is no possible solution to the energy crisis. The only way to avoid large scale loss of life is to immediately implement a strong population reversal program world wide (especially in the USA). (That means possibly the Chinese, one child per family, method.)
All major sources of energy were considered and all ruled out. I can go over the details with you and explain the failures from nuclear to photovoltaic. |
| Nov8-04, 10:06 PM | #81 |
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What were the details of Bartlett's ruling out of nuclear fission (in terms of whatever purpose)? |
| Nov9-04, 05:47 AM | #82 |
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http://www.physicstoday.org/vol-57/iss-11/p12.html For example, |
| Nov10-04, 05:14 PM | #83 |
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There are a few fundamentals to energy usage and how to effectively supply more energy demand while the source of energy is reducing as in oil and becoming increasingly toxic and costly such as nuclear production and waste.
So breaking down the utiliation of energy into transportation, manufacturing, and lifestyle; what are the alternatives? The alternatives for electrical requirements are soon coming to market. See production ready devices such as www.blacklightpower.com, perendev magnetic motor/generator, and Beardens MEG motionless electromagnetic generator. Look at all of J Naudins work and tests and working devices from people all over the globe. http://jnaudin.free.fr/meg/meg.htm. Join the free energy yahoo group. The alternatives for transportation are near as well. The disclosure project, the searle effect generator and offshoot technologies, impulse drive technology, propellentless propulsion devices, flash hydrogen generators. The lifestyle of using energy in our daily lives is something that will only grow over time. So we must enact these pioneering technologies now to perfect them and reduce the costs for the masses to adopt. Imagine the possibility that within the next ten years you will be able to use a magnet only motor to propel a vehicle 300mph at altitude and have the same magnetic motor provide the electricity needed onboard without having to stop running for 25 years. The state of CA spends billions and billions on fixing and adding asphalt to our state. If they routed just 20% of those funds to technologies mentioned above, we could be in an energy surplus in 10 years. Take a look at the flash hydrogen generator from www.emergingtec.com. Runs your car on water or seawater and the only byproduct is purified water. I have mine on order when they start production. I am crafting a inertial drive mechanism for propellantless propulsion which runs on electricity. Combine that with a free energy magnetic motor = unlimited range, unlimited direction, unlimited exterior conditions (undersea, air, space). Any body want one? |
| Nov10-04, 09:36 PM | #84 |
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Nuclear fission has the problem of long construction lead time. Americans are scared to death of Nuclear power because of Chernobyl and Three Mile Island. Biomass/alcohol is insufficient land area. Photovoltaic is too expensive. Coal is forbidden because of greenhouse. Wind energy is only local because of infrastructure. It has been a forgone conclusion since the 70's that humanity will be greatly diminished when this is all over. |
| Nov10-04, 11:18 PM | #85 |
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