georgeob1
 
  1  
Reply Tue 20 Nov, 2012 09:12 pm
@RexRed,
RexRed wrote:

One of today modern nuclear complex plants if it were to suffer a complete meltdown could render most life extinct on planet earth... And you were saying?...


Undortunately you don't know what you are writing about - you are apparently way over your head both in knowledge of the facts and understanding of nuclear power.

In 1979 the Three Mile Islandnuclear plant, with 1,100 MW generating capacity, did indeed suffer suffer just such a complete meltdown. No one dies and no one was injured. No significant radioactivity to the public resulted and there is no statistical evidence of any increased mortality or incidence of disease indicated in the surrounding population.

Three such plants (although each a bit smaller at about 900 MW output each) at Fukushima also suffered complete core meltdowns and an additions spent fuel storage (which was wrongfully filled well over its design capacity) was breeched by gas explosions. No one was killed, though the public radiation exposure was a good deal greater than TMI.

There is virtually no way a nuclear accident could render life on earth extinct. Indeed the Sobiets actually tested a huge 70 Megaton thermonuclear weapon in the 1970s with no demonstrable effects on other continents.

Statements such as yours merely make you look stupid.

China has multiple mining accidents each year that kill over 400 people each; we see some too although the fatality rates are much smaller. In this country over 40,000 people are killed each year in auto and vehicle accidents, and many more as pedestrians. Each year thousands of recreational swimmers and bathers drown in accidents. There are many other such recurrent phenomina involving the loss of life. All are far greater in their effect than that due to the 100 nuclear power plants in this country.

I don't know where you get your "factoids", but if that is the stuff you use to form your opinions, then your views aren't worth repeating or reading.
0 Replies
 
georgeob1
 
  1  
Reply Tue 20 Nov, 2012 09:15 pm
@RexRed,
RexRed wrote:

Now. If Japan were to go, it would be Chernobyl x4000. One meltdown would trigger another and all 4 of the nuclear plants will go off. It would ravage the country, making it unsuitable to live in. Not only that, it will contaminate the sea and the air around it, spreading hundreds of miles in all directions. Once it gets into the winds of the sea, the possibility of it reaching the American west coast is high (65-95%) with enough radiation to kill.


Well three of the four reactors at Fukushima did indeed melt down (or "go off" as you wrote) and none of this happened, none at all, zip, nada.

You are very free with nonsensical assertions such as yours above, but very deficient in even basic knowledge of the very events you are describing.
0 Replies
 
RexRed
 
  1  
Reply Thu 22 Nov, 2012 09:14 pm
https://sphotos-b.xx.fbcdn.net/hphotos-ash4/405054_498971296791720_545461309_n.jpg
georgeob1
 
  1  
Reply Fri 23 Nov, 2012 12:29 am
@RexRed,
"Geyser" is itself an Icelandic word. It refers to the hundreds of spouting hot water volcanic vents that dot the western half of that intensely volcanic island. In Iceland one can confidently get to very hot rock formations by drilling down less than 200 ft almost anywhere in the western area of the island (the east side is a mountainous glacier). The west is more gifted with geothermal energy potential than almost any area in the world. Indeed that's why the winter snow cover there is so sparse. That source of energy has been used for heating buildings, in Iceland for literally hundreds of years. It is hardly new, and there was no recent "conversion" involved at all. I spent neary a year there more than thirty years ago and all of their electriciity came from geothermal plants then.

To say that Iceland "totally converted to Green Energy" in the period after the banking collapse is simply a lie. Iceland has no coal or petroleum. It has used geothermal energy for the production of electrical power, and for heating its homes and commercial buildings since they were built.

No one is reluctant to "expose" this information. Indeed most informed people, or those with just enough curiosity to do a google search, already knew about these supposed "secrets" those evil neocons were hiding from the ignorant and credulous masses. In short you are ignorant of the relevant facts.

You appear to frequent web sites that specialize in highly deceptive propaganda and malicious lies about others. Even more remarkably, you appear to accept these rather obvious deceptions without question or even any evident critical thinking. Thus you add stupidity to your ignorance. It's a bad combination.
0 Replies
 
georgeob1
 
  1  
Reply Fri 23 Nov, 2012 01:05 am
@RexRed,
RexRed wrote:

georgeob1 wrote:

You haven't offered a solution either. Wind and solar power are so much more expensive than conventional sources that their mandated use (on a time scale consistent with those offered by AGW zealots) would cause mass starvation and political havoc.

There have been no facts yet established thast suggest that natural gas extraction will "ruin our water supply". Quite the contrary, the facts suggest the impacts are minimal and easily prevented. You are chasing prejudices and illusions here.

I have no idea what you mean by the following;
Quote:
Every electron has enough energy to fuel this planet,

The fact is the energies associated with changes in electron & ionic reactions, whether through chemical or incident radiation (as in solar cells) are well known and hardly sufficient in any individual case to "fuel this planet". However a somewhat related physical phenomenon, the energy within unstable nuclides of abundant elements, is millions of times greater than any reactions involving mere electrons.

That is the real source of manageable safe mass energy production for the planet without any adverse effects on our atmosphere.


I am just paraphrasing Einstein when he said:

There is enough energy locked up in a grain of sand to boil 10 000 000 kettles and the energy equivalent of the average adult is about 7 x 1018 (7 000 000 000 000 000 000) joules of potential energy, enough to explode with the force of thirty hydrogen bombs!

You must likewise not understand that statement either.
On the contrary I apparently understand it far better than do you.

Your "paraphrase" of Einstein's words constituted a very fundsamental distortion of his essential point. That is that the mass energy in the nucleus of atoms is overwhelmingly greater than the potential chemical energy stored in its orbiting electrons. This means that the potential energy in nuclear fission and fusion reactions is vastly greater than that involved in combustion or other like chemical reactions or even the excitation of electrons by light photons in photovoltaic cells.

In view of that, I find your eagerness to criticize the use of emission-free nuclear power rather self-contradictory.

The observable fact here is that you merely use words and pohrases you don't understand, and you don't bother to match your prejudices with any apparent effort to understand the physics and engineering principles involved.

RexRed wrote:

Why? Because we have become complacent using primitive energy forms. Dark energy is only a theory now yet it is the only hypothesis that explains certain physical phenomenon. Were we to actually do some research and development into that field it could also yield new forms of usable free clean energy. It was worth it to spend billions to produce a bomb to blow up our neighbor but not worth it to solve our energy crisis. Seems like the wrong priorities. And you seem to be part of this very problem George. And what of when we run out of oil gas, coal, clean air and water? Oh then this path would be viable had we not already squandered away any chance of using it in a clean environment. You take for granted this earth and that these vital resources are finite while other forms of energy are nearly infinite.
The only complacency I see here is yours, in your rather amazing ignorance of the facts and lack of understanding of the physical principles you spout off so much here and the words of others that you recite and badly distort in your "paraphrasing". The fact is that the Manhattan Project staff recognized the energy generating potential of fission reactions well before they finished developing a bomb and indeed were operating power producing reactors at the Hanford site two years before the bomb was ready - that's how they produced the plutonium. Very soon after WWII we were avidly using this technology to "solve our energy crisis. Indeed for the past 40 years we have produced about 20% of our electrical power in nuclear reactors.


As for the rest, you merely amplify the reader's impression of the superficiality of your "knowledge" . Both Germany and Denmark have recently cut back on their government spending to subsidize wind power production. The reason ? It is beginning to dawn on them that government subsidies have the opposite of the intended effect on technological advancement : they tend to inhibit profit-motivated investment in risky technological improvements that might reduce the very high costs of these technologies. The result in Europe is that there have been none of the promised technical advances and no cost reductions, and they don't have enough money to go much beyond around 15% of their power consunption in it.

I believe you are the last person I have encountered who should be advocating technological development. You apparently don't understand high school physics, and, worse, you don't seem at all aware of your own limitations in this area. Not recognizing and acting on what you don't know is a good way to remain ignorant.

The Malthusian ideas you are spouting off were discredited many years ago.
0 Replies
 
RexRed
 
  1  
Reply Wed 28 Nov, 2012 01:57 am
electree+ bonsai solar charger combines form and function
http://www.gizmag.com/electree-bonsai-solar-charger/25209/
0 Replies
 
RexRed
 
  -1  
Reply Sat 1 Dec, 2012 08:44 pm
Worlds Smallest Petrol Engine:
Scientists have created the smallest petrol engine in the world ( less than a centimeter long not even half an inch ), small enough to power a watch or any small gadget. The mini-motor, which runs for two years on a single squirt of lighter fuel, is set to revolutionize world technology. It generates 700 times more energy than a conventional battery. It could be used to operate laptops and mobile phones for months doing away with the need for charging. Experts believe it could be phasing out batteries in such items within just six years. The engine, minute enough to be balanced on a fingertip, has been produced by engineers at the University of Birmingham. —
https://sphotos-b.xx.fbcdn.net/hphotos-snc7/403140_396503343762180_2023357556_n.jpg
RST
 
  2  
Reply Sat 1 Dec, 2012 08:57 pm
@RexRed,
Quote:
Experts believe it could be phasing out batteries in such items within just six years.


I hope that crap doesn't phase out batteries, cause combustion engines are not very inefficient. Max efficiency around 30% - 35%.
Anyway this is an old story ~2003. If this was such a breakthrough as they claimed to be, we would've seen implementation of this thing in applications.
RexRed
 
  -1  
Reply Wed 5 Dec, 2012 06:39 pm
Dark Matter Mystery May Soon Be Solved
http://www.space.com/18615-dark-matter-mystery-search.html
RexRed
 
  1  
Reply Mon 10 Dec, 2012 12:34 pm
http://inhabitat.com/new-urban-algae-system-generates-energy-while-cleaning-sewage-water-in-paris/
https://sphotos-a.xx.fbcdn.net/hphotos-ash3/577828_497442403622481_1588469779_n.png
0 Replies
 
georgeob1
 
  1  
Reply Mon 10 Dec, 2012 02:01 pm
@RST,
Actually 30-35% thermodynamic efficiency is pretty high. There are very few processes for the generation of mechanical energy that are much better. Electric motors are, on the surface, better (at around 85%), but that measure leaves out the energy lost in generating the electric power.

It is interesting to note that it's probably more efficient overall to use compressed natural gas to power automobiles than it is to burn the same gas to create electrical power; transmit that power to a battery; and then use it to drive a motor in an electrical vehicle.
RST
 
  1  
Reply Tue 11 Dec, 2012 11:02 pm
@georgeob1,
Don't take it out of context. I'm talking about small applications, where a battery is more than practical than these "mini" petrol engines. These 30-35% efficiency is after sophisticated innovations to reduce heat loss. I doubt that these small engines have such capabilities and the efficiency may be much much less than numbers projected by the current vehicle motors. Furthermore, you'd have to consider the power density from this mini engine and I'm betting that the levels won't match that of a battery due to the engine's small size.

And personally I don't want a world where every little application is powered by petrol engines, well exaggerated by this commercial:

0 Replies
 
roger
 
  1  
Reply Tue 11 Dec, 2012 11:32 pm
@georgeob1,
I think the hybrid technologies work because when the engine is actually running, they are at a constant speed that exactly matches the engine's most efficient operating point.

Not that adds or takes anything away from your point.
georgeob1
 
  1  
Reply Tue 11 Dec, 2012 11:57 pm
@roger,
roger wrote:

I think the hybrid technologies work because when the engine is actually running, they are at a constant speed that exactly matches the engine's most efficient operating point.

Not that adds or takes anything away from your point.


I agree with that fully. It is very easy to optimise an IC engine that runs at constant speed and with little torque variation, and the results are much better than what can be achieved with a variable speed & torque engine. In the case of hybrids it's the battery cost, capacity and efficiency that's the problem. Stiil even with that for small city vehicles they do have advantages.
0 Replies
 
RexRed
 
  1  
Reply Mon 17 Dec, 2012 04:44 am
@RexRed,
Fracking is transforming our energy economy–but it’s also causing earthquakes
http://tv.msnbc.com/2012/12/08/fracking-transformed-our-energy-economy-but-its-also-causing-earthquakes/
0 Replies
 
jarold
 
  2  
Reply Wed 26 Dec, 2012 07:18 am
It should be a good example, but...

Just a few days ago it was reported that BP will pay $7.8 billion for the disaster in the Gulf of Mexico, but in fact BP had learned nothing from it.
Azerbaijani Shah Deniz field which is also under BP's wing has the similar security issues that led to a disaster in the Gulf of Mexico. After visiting the field we studied the collected data in the European Energy Institute and we have very sad conclusions and the summary is that Caspian Sea is in great danger because in a case of gas explosion it will take weeks to contain the accident because the field is connected to a number of pipes that got no security mechanisms to stop fire spreading, not saying about danger to ecology and living beings.
The most terrible thing is that authorities of Azerbaijan and BP do nothing to prevent another ecological disaster, but instead they soup up the field so they are moving closer to the accident which is just a matter of the time with current state of affairs at Shah Deniz. But as distinct from the disaster in the Gulf of Mexico neither Azerbaijan nor BP will have to pay for it such huge fines. So it's up to environmental organizations and activists, everyone, to act and save the Caspian Sea from a disaster and us from an empty gas line.
RexRed
 
  1  
Reply Mon 31 Dec, 2012 08:49 am
This solar panel laid on the vast stretches of agricultural channels in Gujarat generates 1 MW of electricity per KM & prevents evaporation of 1 crore liters of water every year !!
https://sphotos-a.xx.fbcdn.net/hphotos-ash4/488277_451711284863600_1669738886_n.jpg
0 Replies
 
RexRed
 
  1  
Reply Mon 31 Dec, 2012 08:50 am
@jarold,
Greed and conscience rarely go hand in hand...
0 Replies
 
RexRed
 
  1  
Reply Mon 31 Dec, 2012 09:04 am
https://sphotos-b.xx.fbcdn.net/hphotos-ash3/533103_415046388530090_1829899551_n.jpg
0 Replies
 
RexRed
 
  1  
Reply Wed 9 Jan, 2013 07:12 pm
Are there several definitions for E? (energy)

Can E = the force exerted against force?
0 Replies
 
 

Related Topics

Perpetual Motion - Question by magnocrat
 
  1. Forums
  2. » Energy
  3. » Page 17
Copyright © 2024 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.61 seconds on 05/03/2024 at 05:00:22