Re: bio-diesel hybrid future
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Re: bio-diesel hybrid future
| Don Tuite | 05 Sep 2005 02:00 |
>>> > Really? >[snip] [quoted text clipped - 5 lines] >was dubbed as such for a reason. There are huge differences between >experimental reactors and production reactors; at least here in the US. I hope I got the attributions above right.
The nasty accidents you want to read about were the Snake River (US) and Windscale (Renamed Sellafield) in the UK. They happened in the 50s. You can google the data. Snake river was experimental. The AEC made a movie about it, which I saw in an engineering class in 1964.
FWIW, here's some data on nuclear production I googled together for an article:
" . . . France is the most enthusiastic proponent of nuclear power generation, but the United States produces almost double France's output. Germany is generally seen as having abandoned nuclear power, but that assessment may be premature.
"France operates 59 nuclear reactors that supply more than 420 Terawatt-hours per year, 78% of the country's total consumption. France is the world's largest exporter of electricity, which is the country's fourth largest export. Much of it is purchased by Italy.
"In the USA, there are presently 103 fully licensed and operational nuclear power reactors. The most recent data has them producing about 750 Terawatt-hours/year, or about 20% of the country's electricity. A Department of Energy report says that even a 3% reduction in US carbon emissions will require not only license renewal for all the existing nuclear plants, but also possibly the construction of about 30 large new ones by 2012.
"The political status of nuclear power in Germany is complex and predictions about what is going to happen are always hedged. Over half the country's electricity still comes from coal. However, under the Kyoto accord, Germany is committed to a 21% reduction of greenhouse gas emissions by 2010.
"Thus, Germany continues to operate 17 nuclear power reactors. (All the Soviet-designed reactors in the old East Germany have been shut down and are being decommissioned.) Output in 2004 was 167 Terawatt-hours, roughly a third of the country's consumption.
Here's a table of the rest of the countries around the world producing commercial power, ranked by output. The data is from 2003.
Country Terawatts (2003) Japan 314 Russia 141 Korea 113 United Kingdom 81 Ukraine 78 Canada 76 Sweden 65 Spain 63 Belgium 45 Taiwan 38 Switzerland 26 Peoples Republic of China 23 Finland 21 Bulgaria 20 India 20 Slovakia 18 Lithuania 14 Mexico 10
The rest of the article is here:
http://www.elecdesign.com/Articles/Print.cfm?ArticleID=10607
There's some current info on pebble bed reactors, but nothing anybody couldn't get off the Web. You have to read past the fuelcell and solar sections to get to the nukes.
Don
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| Greg Copeland | 04 Sep 2005 23:28 |
>> > Really? [snip]
> And we aren't talking about just 2 disasters. Wasn't there an > experimental reactor in the midwest that iradiated its operators and Well, I can't speak to that one, but if it was experimental, I'm sure it was dubbed as such for a reason. There are huge differences between experimental reactors and production reactors; at least here in the US.
> bunch of firefighters? And what about that russian submarine that I have read a little bit about the Russian sub disaster. And again, disaster is better applied thann "accident". Once again, the Russian's proved how they can cut corners and throw caution to the win to prove they could best America during the cold war. I personally believe this falls well into the flour mill analogy. Heck, Forrest Gump can be quoted here, "stupid is as stupid does." Seems like a good fit here too.
> nearly went critical while irradiating it's entire crew. (Is that at > the bottom of the ocean, or am I thinking about thresher?) So how many The Thresh sank for completley different reasons. It sank because the Navy wanted to see how far they could stress a sub, without maintenance, before it failed...and they wanted to observe the nature of the impending failures...all before the Thresh has actually gone through it actual trails. Long story short, inexperienced crew, unproven ship, and refused maintainence just for the sake of seeing how bad, bad can get...."stupid is as stupid does", once again seems like a good fit.
> reactors are there world wide, while having had 4 significant > accidents? So even if there are 400 reactors, we are still talking a 1% [quoted text clipped - 5 lines] > building them, or gaurantee safety until there is either a global ban, > or a global enforcable manufacturing standard. Hey, make no bones about it. I have absolute faith in nuclear technology...assuming it's done right. Places like China and Korea and Iran, scare the crap out of me. You can do anything right or wrong.
> In the case of Chernobyl, some humans took some servicable equipment, "Servicable" is a nice way of putting it. Substandard, is what I would put it as.
Cheers,
Greg
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| shrike@cyberspace.org | 03 Sep 2005 01:17 |
> > Really? > [quoted text clipped - 62 lines] > > Greg Everybody seemed to think it was important enough to stay inside for the whole week following, while Chernobyl rained down on all of us. The guys doing the checking were military, and using their special cold-war doohickeys to take measurements. You can emagine they were excited, as GI's don't get to use their special toys in the real world very often. I would assume they would be capable of telling the difference between normal background radation and elevated levels given that was their job in the event of nuclear war. It rained all that week, and all the kids in the neighborhood were locked indoors to keep from playing in the wet grass. We were probably better than a thousand miles away, and were effected.
And we aren't talking about just 2 disasters. Wasn't there an experimental reactor in the midwest that iradiated its operators and bunch of firefighters? And what about that russian submarine that nearly went critical while irradiating it's entire crew. (Is that at the bottom of the ocean, or am I thinking about thresher?) So how many reactors are there world wide, while having had 4 significant accidents? So even if there are 400 reactors, we are still talking a 1% failure rate.
I take your point that the USA has probably learned it's lesson, but that doesn't mean the rest of the world has. To think that there will be a reactor in Iran is some scary sh.t. And nobody is going to stop building them, or gaurantee safety until there is either a global ban, or a global enforcable manufacturing standard.
In the case of Chernobyl, some humans took some servicable equipment, hosed it up and created a global natural disaster. Though I have some faith in modern American engineering, I have no reason to think that something like that wouldn't happen in say Pakistan. Given the global effect of Chernobyl, significant concern is warranted no matter where a reactor is located.
And as I understand Three mile island from the documentary I saw, even when engineers where considering the possibility of meltdown, the officials from the parent energy company were telling everyone that all was cool and go home. So though I may not be an engineer, there is no reason for me to think that what I'm being told by basically the same people is anything remotely resembling truth.
I would say that the deception at three mile island probably caused more fear and more domestic protest than if they would have just told everybody to evacuate and then brought them back in. Now nobody trusts Nuclear energy, and rightly so. Whether it is the technology they don't trust, or the people selling it is of no consequence. No trust, no sale. In any case I sure as well wouldn't want it in my back yard.
-Matt
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| Greg Copeland | 02 Sep 2005 18:53 |
> Really? Yes, Really!
> I lived in Europe during Chernobyl. I was 6 years old and remember that > week vividly. Chances are I'm still carrying part of that son-of-a-bitch > around with me today as are all the inhabitants of Europe. I lived near > a US military base at the time, and yes gigercounters were picking up > radiation on my front f.cking lawn! We were told it wasn't at hazardous > levels, but detectable. Background radiation is normal. Heck, just flying in a plance considerably increases the dose of radation you get that day. You really didn't say how far about background you were, but....all said and done....this is all completely beside the point.
> But I guess thats just fear mongering and ignorance talking. Perhaps you > could pass on that wisdom of yours to that town that was next to the > reactor. Oh, sorry, it's gone. Gee whiz, I wonder where all those fear > mongering ignorant folks went. Thats right. They're all dead. Oops. > > -Matt Simple fact is, Chernobyl was based on substandard 40's and 50's level technology and failed to have even the minimum of proper shielding and containment. Even during the 50's, here in the US, Chernobyl would never have been allowed to be built. Worse, the Russians then decided to disable what failsafes they had in place to see how low and unsafe they could run their reactor, without proper coolant and again, with safeties disabled. Basically, you can sanely argue that this was an act of terrorism by Russia against people in that part of the world. It's a horrible situation because Russia did *everything* they could to make is as bad as is humanly possible.
The closest failure that the US has had was 3-mile island and even that place was considered technologically substandard for the period. Three mile island was properly contained (less than one millirem released to the surrounding community), contrary to many reports. To add insult to injury, had TMI actually had the proper instrumentation, which was considered the norm at the time, the disaster would have been completely avoided.
Now then, advance many technology years and we now have self regulating, reator designs. Many of them in fact. Basically, what happens is...before the reactor can get close to meltdown, other components either melt (e.g. b/c of loss of coolant) within the core or vaporize within the core, which prevents futher nuclear reaction. This means, the core will continue to cool, all completely on its own. If it destroyed it self, it cools inside of its own containment shielding. From there, it can be disposed of as seen fit.
Long story short, while I am sorry you were near Chernobyl, place Russia for doing everything they could of inflict it on you. Chernobyl was not a nuclear accident. Chernobyl was purposely engineered through stupidity and complete and utter lack of concern, compassion, or understanding of what they were doing. Basically, a lot of people died and/or were injured because they didn't give a dang. To hold Chernobyl up as an example of why we should not use nuclear is to point to flour mill (in case you didn't know, flour mills sometimes explode) and insist the world should stop making bread.
Simple fact is, more people in the last ten years have died as a DIRECT result of coal power plants than have, in total, ever been killed from nuclear power plants. But, I sure you wouldn't know that because fear mongering is just so popular and politically correct these days.
Greg
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| shrike@cyberspace.org | 30 Aug 2005 00:13 |
<SNIP>
> The only thing that keeps nuclear from ready availability is fear > mongering and ignorance. Heck, what do you expect in a culture where [quoted text clipped - 3 lines] > > Greg Really?
I lived in Europe during Chernobyl. I was 6 years old and remember that week vividly. Chances are I'm still carrying part of that son-of-a-bitch around with me today as are all the inhabitants of Europe. I lived near a US military base at the time, and yes gigercounters were picking up radiation on my front f.cking lawn! We were told it wasn't at hazardous levels, but detectable.
But I guess thats just fear mongering and ignorance talking. Perhaps you could pass on that wisdom of yours to that town that was next to the reactor. Oh, sorry, it's gone. Gee whiz, I wonder where all those fear mongering ignorant folks went. Thats right. They're all dead. Oops.
-Matt
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| Greg Copeland | 28 Aug 2005 00:16 |
>> I have to chuckle when I see solar recommended as the final solution. > [quoted text clipped - 7 lines] > Right now, wind is the best way to utilise solar power, and it can > compete with coal power in many locations. I don't know that I buy into that. Nuclear has a lot of life left it. There are lots of newer and improved nuclear technologies that can actually run off of nuclear waste produced by existing nuclear plants. There is pretty much a life time supply available...just in current waste supplies.
The only thing that keeps nuclear from ready availability is fear mongering and ignorance. Heck, what do you expect in a culture where Nuclear Magnetic Resonance Imaging (NMRI) had to be renamed to Magnetic Resonance Imaging (RMI)...the name scared too many people so they had to rename it.
Greg
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| Ian St. John | 27 Aug 2005 17:28 |
> I have to chuckle when I see solar recommended as the final solution. Since the only primary source of power (not stored and thus limited ) is solar ( i.e. conversion of mass to energy by fusion or fission), you are just blowing smoke. Solar *is* and always will be the only long term solution. But it is more likley to be solar power satellites so as to maximise the power per unit of collector. Concentration can be used on the surface to get similar economies of silicon vs energy conversion.
Right now, wind is the best way to utilise solar power, and it can compete with coal power in many locations.
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| Bob Gardner | 27 Aug 2005 17:09 |
I have to chuckle when I see solar recommended as the final solution. No one seems to consider the amount of energy it would take to manufacture the panels, to convert the DC to AC, to make the large-diameter/low resistance conductors necessary to carry such small voltages, and finally, the amount of land taken out of production because it is in constant shade.
Bob Gardner
> The problem with burning hydrogen is that solar panels can't make enough > of it. To replace today's vehicular use of oil, we'd need 230,000 tons of [quoted text clipped - 79 lines] >>> Of note: Of course the best way to produce electricity in these often >>> sunny third world countries is solar panels!! |
| Seth Masia | 27 Aug 2005 13:54 |
The problem with burning hydrogen is that solar panels can't make enough of it. To replace today's vehicular use of oil, we'd need 230,000 tons of hydrogen daily. Solar cells to make that much hydrogen would cover about 20,000 square kilometers. To get this much power -- 400 gigawatts daily -- without carbon emissions, the only cost-effective solution is nuclear plants. And that has its own political and ecological consequences. See http://www.world-nuclear.org/opinion/grant.htm
Seth
>I think you're mostly right for short term, but long term belongs to >hydrogen. [quoted text clipped - 69 lines] >> Of note: Of course the best way to produce electricity in these often >> sunny third world countries is solar panels!! |
| LCT Paintball | 27 Aug 2005 12:23 |
I think you're mostly right for short term, but long term belongs to hydrogen. The problem with solar is storing the energy. Stick a solar panel in your back yard that converts water to hydrogen, and you can store as much as you want.
 Signature "Don't be misled, bad company corrupts good character." www.LCTPaintball.com www.LCTProducts.com
>I would like to present to you the (near) future of transportation... > [quoted text clipped - 63 lines] > Of note: Of course the best way to produce electricity in these often > sunny third world countries is solar panels!! |
| max | 27 Aug 2005 10:23 |
I would like to present to you the (near) future of transportation...
Diesel hybrid cars (full two-mode plug-in hybrids) Diesel for motorcycles Diesel (probably 2-stroke) engines for general aviation (including rotorcraft) Extensive use of bio-diesel
Hybrid cars (gasoline)are in production Diesel hybrid trucks and busses are in production Diesel motorcycles are / will be in production soon Diesel aviation engines are in production...more are coming
Very soon we will see the first diesel hybrid passenger car in production
Diesel for aviation or motorcycles...they have been around for some time. Think of Junkers "Jumo" 205. Decades ago there were several Diesel aircraft engines built by Guiberson, Packard, Rolls-Royce, Clerget, Fiat and others. Royal Enfield (India) has had a diesel motorcycle in production for some time. I believe it is now discontinued.
Some diesel hybrid car prototypes...
GM's Ope Astra diesel hybrid Citroen Berlingo diesel hybrid VW Golf diesel hybrid (so I hear)
Some diesel aviation engine prototypes...
SMA Morane Renault MR 200 www.smaengines.com Teledyne Continental Motors CSD-283 www.teledyne.com (Nasa GAP) DeltaHawk V-4 www.deltahawkengines.com Zoche 01A www.zoche.de Diesel Air Ltd. DAIR-100 www.dair.co.uk
Some (gasoline) hybrid cars in production...
Toyota's Prius and Lexus Ford's Escape Hybrid
Some diesel motorcycle prototypes...
Diesel Kawasaki M1030 M1 (KLR 650) F1 Engineering / Hayes Diversified Technologies (HDT)
For third world countries a diesel motorcycle could be ideal. It is probably very dependable and durable and relatively easy to fix. It could be bi-fuel, meaning it could use diesel, Jet A, light heater oil and most importantly... bio-diesel and even straight vegetable oil (SVO). It could ne equipped with a small (max 200kg) 2-wheel trailer and a power take-out (PTO). The PTO would mostly be for a generator and/or (water) pump.
Picture this. In a third world country, a motorcycle travels 100km @ 80kmh with 2 litres vegetable oil that they have made themselves. It then pumps (with a pump attached at the PTO) from a deep dwell 150 litres of fresh water into a tank that's on the trailer, drives back and delivers the fresh water to the families in the village. Later at night, it runs to provide electricity (with a generator attached to the PTO) for many houses in the village and to recharge the batteries. This motorcycle and its accessories the families in the village have bought together, with some help from some organisation like the UN.
Of note: Of course the best way to produce electricity in these often sunny third world countries is solar panels!!
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