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Anybody here see this about water as fuel?

Discussions of conventional and alternative energy production technologies.

Re: Anybody here see this about water as fuel?

Unread postby Battle_Scarred_Galactico » Fri 29 Sep 2006, 10:32:28

The importance here is that hydrogen can help mitigate negative impact during a transition period.

I love this line, it makes it sound like the problems only short term then we can get right back to traffic jams and cheap flights.

This isn't Charlton Heston grabbing a rifle and surviving for an hour, it's permanent, for good.
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Re: Anybody here see this about water as fuel?

Unread postby small_steps » Wed 04 Oct 2006, 23:42:16

They didn't mention what the transition will be to!

This idea that we should look at hydrogen as an energy carrier is nuts, so the best energy carrier we have is being stressed, so lets find about the worst energy carrier we can, and focus our efforts on improving it! Yeah, that kind of thinking is ubsurd. How about improving what we have, and looking at manufacturing fuels that use that hydrocarbon bonding? Guess what? That is achievable, not some pixie dust induced hydrogen happy talk that ends up being just proposal after promise.

Monty - you seem more pragmatic than before, welcome back..
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Re: Anybody here see this about water as fuel?

Unread postby Micki » Thu 12 Oct 2006, 05:16:42

Guess you're right MonteQuest, I don't get it.
Or let me re-phrase it. I don't think You get it.

You said;
$this->bbcode_second_pass_quote('', 'H')ydrogen must be made from an existing energy source.
Currently, that is mostly natural gas which will go into decline shortly after oil.


That is correct, and I already acknowledged that in my original post. Electricity can however also be generated without use of these fuels.
I never said hydrogen today was a viable option to replace oil/gas for transportation.
But if we continue rollout of nuclear power AND/OR sustainable ways of generating electricity, we will Increase the capacity for electricity/hydrogen based transportation and
become Less carbon energy dependent.
Note, I said Increase and Less dependent. Not replace.

Next quote;
$this->bbcode_second_pass_quote('', '2')nd law of thermodynamics says you will get less energy from doing this than you started with.


SO WHAT.
If you talk about using up 2 barrels of oil to produce 1 barrel, yes then you are right.
But we are talking about converting electricity (possibly from sustainable sources like solar, wind, tide, kite flying or what ever) to means of transportation.
In that case the system may be inefficient in that 1unit of energy perhaps only gives you 1/2 unit worth of transportation.
Well if it is worth it depends on what you need the transportation for and what, if anything, you need to sacrifice instead.

Lets take it to a small scale. And dont' get too hooked up on the figures, they are just there to illustrate the point.
If I for instance install some solar panels. This produces 10 units worth of energy.
In a perfect world I might be able to convert it to 5 hours transportation at a certain speed for a certain size/weight vehicle.
But with current inefficient technology I only get 1 hour transportation out of it. So I wasted 80% of the energy.
Well I might not care cause it gives me transportation fuel I otherwise might not have had. This may in a future scenario allow me to transport food and goods to a market so I can trade for a living, or to drive my sick son to a doctor who is far away or perhaps fuel a small boat motor so I can do some fishing.

And to make the point again.
I didn't say solar / hydrogen is a complete solution for replacing current fuels.
It is a matter of replacing some and then increasing that share over a peiod of time.

OK the share might not grow fast enough to offset the loss of oil/natgas.
That has nothing to do with what I am saying. My point it it is better to replace >0% of current fuels with something more sustainable than nothing.

Third;
$this->bbcode_second_pass_quote('', 'Y')ou don't quite get it do you?
There is no techno-fix for this so we can continue "happy motoring".


Well do you think technology can make harnessing of solar/wind or other sustainable energies more efficient?
Can conversion and storage as hydrogen be made more efficient?
If the answer is yes, then yeah, technology can help improve the situation.
And don't give me that "happy motoring" bull because that suggest you don't read my posts very well.
I think we are in for some hardship and major change. Perhaps starvation and/or wars and unreast.
But I think we can do things to cutback on some of the suffering.
You may disagree if you are just looking forward to mass die-off and a return to stoneage, in which case starvation etc may be the positive option.
Le't s find out then. Do you want to suffer from financial depression, starvation etc. If the answer is No, then perhaps you would like to have a vehicle that can be charged up through solar/wind power? i.e. a tractor or a boat. I know I would.

$this->bbcode_second_pass_quote('', 'E')fforts to maintain the status quo are doomed to make the matters worse, not better.

Once again, did I talk about status quo? I am again talking about making a bad situation a little bit less bad for some or with some luck for many.
We might go through terrible change and mass death, but can we start preparing for a more sustainable and still somewhat technologically advanced world for tomorrow?
Do you think we in the future could live in a world with better balance (ecological, mental, spiritual and so on) even if we don't live like amish?

Same thing to you Battle_Scarred_Galactico.
$this->bbcode_second_pass_quote('', 'T')he importance here is that hydrogen can help mitigate negative impact during a transition period.
I love this line, it makes it sound like the problems only short term then we can get right back to traffic jams and cheap flights.


I don't know how you read the posts. I never said that. Please read the posts and think for a second before drawing conclusions.


Now, if you think development og electricity/hydrogen based means of transportation is so off.
Are you also against further development of, let's say, home solar/wind power in order to keep freezer/fridge running so you can preserve food?
If not, why do you think this is so different from developing technology to allow electricity/hydrogen to run a vehicle?
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Re: Anybody here see this about water as fuel?

Unread postby Doly » Thu 12 Oct 2006, 06:11:09

Micki, I think you have proved you get the general idea.

I'm a bit more optimistic than you, by the way, but I don't think we can replace our current transportation system, where everybody has a car.

Monte, before telling people "you don't get it" (your favorite catch-all answer), try to understand what they are saying.
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Re: Anybody here see this about water as fuel?

Unread postby MonteQuest » Thu 12 Oct 2006, 22:38:17

$this->bbcode_second_pass_quote('Micki', ' ')
$this->bbcode_second_pass_quote('Montequest', 'H')ydrogen must be made from an existing energy source.
Currently, that is mostly natural gas which will go into decline shortly after oil.


That is correct, and I already acknowledged that in my original post. Electricity can however also be generated without use of these fuels.


Now I know you really don't get it. We don't use natural to generate electricity to make hydrogen. We take the CH4 methane and strip off the H2.

$this->bbcode_second_pass_quote('', '')$this->bbcode_second_pass_quote('Montequest', '2')nd law of thermodynamics says you will get less energy from doing this than you started with.


SO WHAT.


So what? When you are in a declining enrgy environment, the last thing you need is a new consumer of energy.

$this->bbcode_second_pass_quote('', 'B')ut we are talking about converting electricity (possibly from sustainable sources like solar, wind, tide, kite flying or what ever) to means of transportation.

Hydrogen cannot be transported by existing pipelines and will leak from any container. It also makes metal brittle which creates huge storage problems. In a hydrogen economy, an estimated 10 to 20 percent of total volume would leak into the atmosphere. Result: The hydrogen will combine with oxygen to form water vapor, creating those high, wispy clouds you see at dawn and dusk. The increased cloud cover could accelerate global warming.

Energy Density: A 15-gallon fuel tank holds about 90 pounds of gasoline. To get the same amount of energy from hydrogen, you'd only need about 34 pounds of fuel, but holding it would take a 60-gallon tank.

According to Honda, hydrogen fuel cell automobiles are at least two decades from reality. General Motors claims they will have a commercial fuel cell vehicle ready by 2010. However, Ballard Power, the leading fuel cell company, says that first there needs to be a “fundamental engineering rethink” of the proton exchange membrane (PEM) fuel cell. Because of membrane deterioration, today’s PEM fuel cells typically fail during their first 2,000 hours of operation. Today, it takes 700 square feet of photovoltaics (god knows what they must cost) operating for one week to produce enough hydrogen to drive a fuel cell car costing about $1 million dollars, 160 miles.

And:

$this->bbcode_second_pass_quote('', '')Most analysts think it will take several decades for hydrogen to make a large impact, assuming hydrogen technologies reach their goals,” notes Joan Ogden, an associate professor of environmental science and policy at the University of California at Davis and one of the world’s leading researchers of hydrogen energy.

It might better to hold off building hydrogen cars, and instead harness fuel cells to generate electricity for homes and businesses using decentralized renewable energy.


$this->bbcode_second_pass_quote('', 'W')ell do you think technology can make harnessing of solar/wind or other sustainable energies more efficient?

Sure, but that isn't the point.

This is: Peak Oil: The Tip of the Iceberg

$this->bbcode_second_pass_quote('', 'B')ut I think we can do things to cutback on some of the suffering. You may disagree if you are just looking forward to mass die-off and a return to stoneage, in which case starvation etc may be the positive option.

A die-off is always the sequel to overshoot.

That is the way nature works. Always has, always will.

I don't look forward to a die-back of the population, I expect it.

$this->bbcode_second_pass_quote('', '')$this->bbcode_second_pass_quote('Montequest', 'E')fforts to maintain the status quo are doomed to make the matters worse, not better.
Once again, did I talk about status quo? I am again talking about making a bad situation a little bit less bad for some or with some luck for many.

Again, we cannot continue "happy motoring" but just less so.

$this->bbcode_second_pass_quote('', 'W')e might go through terrible change and mass death, but can we start preparing for a more sustainable and still somewhat technologically advanced world for tomorrow?
Do you think we in the future could live in a world with better balance (ecological, mental, spiritual and so on) even if we don't live like amish?

Click on the link in my signature and find out.

$this->bbcode_second_pass_quote('', 'A')re you also against further development of, let's say, home solar/wind power in order to keep freezer/fridge running so you can preserve food? If not, why do you think this is so different from developing technology to allow electricity/hydrogen to run a vehicle?

"Happy motoring" was only possible through cheap, readiliy available fossil fuels is why.
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Re: Anybody here see this about water as fuel?

Unread postby MonteQuest » Thu 12 Oct 2006, 22:44:43

$this->bbcode_second_pass_quote('Doly', 'M')onte, before telling people "you don't get it" (your favorite catch-all answer), try to understand what they are saying.


Oh, I do. That's why I say they don't get it.

You cannot fix something that never worked to begin with. We just thought it did while we had cheap energy to fuel it.

This thread says it all.

Peak Oil: The Tip of the Iceberg

It is difficult, if almost impossible (even in scientific discussions) for people of one paradigm to communicate with those who perceive and reason in terms dictated by another different paradigm.

Micki, among many others here, sees the world in a different and unsustainable paradigm. and as long as she contnues to do so, she will not "get it."
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Re: Anybody here see this about water as fuel?

Unread postby zoidberg » Thu 12 Oct 2006, 23:11:39

Perhaps some of the problem is that people see solar/wind and other renewable sources as unlimited and free to acquire. This leads to some interesting conclusions regarding their use.

But I dont see why we need to convert that electricty to some liquid fuel when we can apply it to our new mag-lev trains that will soon criss cross the country! Well maybe some turn of the 20th century light rail technology in urban centers to start with ;).
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Re: Anybody here see this about water as fuel?

Unread postby Micki » Fri 13 Oct 2006, 01:24:14

To MonteQuest.

$this->bbcode_second_pass_quote('', 'N')ow I know you really don't get it. We don't use natural to generate electricity to make hydrogen. We take the CH4 methane and strip off the H2.
Does it matter that I don't know the actual process?


Well no hiding I don't have the specific technical skills.
As a layman I thought once the hydrogen cell was created, it could be re-charged with electricity (from forinstance solar power).
I however don't think this post is about being a besserwisser showing technical knowledge about the specific process. It is about the concepts.

Anyway, to respond properly. Hydrogen can also be extracted from for instance coal. So I assume you are not saying that hydrogen technology will die off with natgas. I think you just wanted to show off your superior technical knowledge.

Furthermore, I actually think we will/should develop alternatives like battery technology etc. So hydrogen is not the only way.
And also, if we migrate towards other energies for generation of electricity, more of the NG could be used for hydrogen.

$this->bbcode_second_pass_quote('', 'W')hen you are in a declining energy environment, the last thing you need is a new consumer of energy.


Well if the case is that there isn't enough energyfor all our needs/wants, it comes down to priority.
And I think some transportation (not saying happy motoring) will be a priority (together with heating).
We can however save a fair bit of electricity if we really want to. i.e. what if electricity was so expensive that you no longer wanted to use appliances that use power in standby mode, lights would be limited to necessity only, console games and pc non-essential use stopped, manual equipment would be used for cooking (i.e. whiskers, blenders etc). No more outdoor lights. Prohibit neon lights. And so on.
Just braining here. Anyway I think we can cut back on a lot of electricity usage. It is just a matter of priority.

Secondly, we can increase electricity output, especially if we continue development of solar/wind/tidal and what ever sustainable sources we have.
On the shorter term, we can increase nuclear power. Not popular - but this seems to be happening anyway.
Think increased use of nuclear power could (for a period) help cutback on the use of NG for creation of electricity?

$this->bbcode_second_pass_quote('', 'H')ydrogen cannot be transported by existing pipelines and will leak from any container.
It also makes metal brittle which creates huge storage problems.
In a hydrogen economy, an estimated 10 to 20 percent of total volume would leak into the atmosphere.
Result: The hydrogen will combine with oxygen to form water vapor, creating those high, wispy clouds you see at dawn and dusk. The increased cloud cover could accelerate global warming.


Here you are introducing some new objections that wasn't brought up earlier.
So what you are saying is that the technological solution isn't complete yet and carrier additional risks.
If you saw the glass half full instead you could have said; If we can solve these problems, then it would be a viable option. Until then a large scale rollout is risky to our environment
You however seem so focused on the half empty glass that you give up even trying.

$this->bbcode_second_pass_quote('', 'E')nergy Density: A 15-gallon fuel tank holds about 90 pounds of gasoline.
To get the same amount of energy from hydrogen, you'd only need about 34 pounds of fuel,
but holding it would take a 60-gallon tank.

once again SO WHAT. If the alternative for instance is NO VEHICLE.
And again, do you think technology can make any advances?

You are comparing efficiency of hydrogen with carbon.
And that will impact short term decision making.
You should compare hydrogen with nothing else. Is an inefficient way of transport better than no transport.

Let me drive the point two more times;
$this->bbcode_second_pass_quote('', 'A')ccording to Honda, hydrogen fuel cell automobiles are at least two decades from reality.
And if we don't work on it today it will be even further away.

$this->bbcode_second_pass_quote('', 'G')eneral Motors claims they will have a commercial fuel cell vehicle ready by 2010.
However, Ballard Power, the leading fuel cell company, says that first there needs to be a “fundamental engineering rethink”
of the proton exchange membrane (PEM) fuel cell.
Because of membrane deterioration, today’s PEM fuel cells typically fail during their first 2,000 hours of operation.
Today, it takes 700 square feet of photovoltaics (god knows what they must cost) operating for one week to produce enough hydrogen to drive a fuel cell car costing about $1 million dollars, 160 mil
Is this an improvement compared to say 10 years ago?
If yes, then it shows that technology can make advances.
Have other "technical things" been more expensive at first and then gone down in cost/price? Just as an example; computers, plasma screens etc? Are they more expensive in the beginning and then get cheaper as the tech is rolled out

$this->bbcode_second_pass_quote('', '
')$this->bbcode_second_pass_quote('', 'Q')uote:
Well do you think technology can make harnessing of solar/wind or other sustainable energies more efficient?


Sure, but that isn't the point

Well partly it is the point.
Development of non-carbon energy will mitigate the effects of peak-oil/NG.
Hydrogen technology isn't perfect but I'm sure we can make improvements.
Combine this with other alternative fuels like liquified coal, ethanol etc. We may be able to keep necessary transportation going.

Your article: This is: Peak Oil: The Tip of the Iceberg
This is really outside the topic. Becasue you are assuming that anyone who likes the idea of development of hydrogen automatically supports 'happy motoring', 'business as usual' future.

Well I haven't been advocating infinite growth. I believe we are on the peak of a lot of things and will scale down one way or another.
The decline can however be cushioned/managed without revisiting the stoneage.
And hydrogen technology is only one that we should continue developing. Eventually one or two will emerge as the winning candidates but until then,
we have to investigate several/all options.

So Yes we are currently on an unsustainable path.
But migration to new technologies and paradigm shifts in transportation/travel etc CAN make it Less Un-sustainable. Nature will correct some of the inbalances, improvement in human lifestyle/technology used etc can contribute some.



Once again.

You are focusing a lot on "happy motoring" as if I was trying to market some ponzi scheme to keep the population growing and hooked on consumenrism.
You however failed to address my points regarding the following;

1) Can improvements be made to allow better harnessing of alternative energy conversion to fuel?

2) If I can have a fuel cell vehicle that I can charge up with solar panels, would that be OK?
If I can have it can others have it as well?

3) If sufficient number of people have fuel cell run cars, could that lower dependence on oil?

4) Could people generally cope better with transition and after PO world if they had some access to vehicles (private, public, emergency services, food transportation)
than if they did not?

5) Do I believe in an unsustainable world if I think there could be vehicles in the (near) future that can be charged up with for instance solar/wind power?
Once again, you package it all up into some thinking that this somehow advocates for keeping the world running as it is.

6) Besides hydrogen (and other alternative fuels) not being scalable or technically sufficient (yet) why do you actually say we should not make further developments in this area. (I assume now that you understood my reasoning why this has nothing to do with an ever expaning economy/population etc.)

Furthermore, besides giving up every development since 18th century what do you suggest?
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Re: Anybody here see this about water as fuel?

Unread postby MD » Fri 13 Oct 2006, 06:14:18

Dieoff is inevitable, it's only a matter of timing.

Through that entire process, there will be prosperous communities of humans here and there. Those communities will be producing vehicles by any means at their disposal.

Personally I prefer an electric vehicle over cleaning up my horse's shit bag.

I will take whatever I can get.
Stop filling dumpsters, as much as you possibly can, and everything will get better.

Just think it through.
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Re: Anybody here see this about water as fuel?

Unread postby MD » Fri 13 Oct 2006, 06:26:55

As for the whole "water as fuel" question:

Solar powered electrolysis of water is the only long term hygrogen source available.

Hydrogen visionaries see massive solar arrays producing hydrogen fuel for transport.

The infrastructure costs and technological challenges are so great that it may be better to not even try, since such efforts only delay and intensify the coming dieoff.
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Re: Anybody here see this about water as fuel?

Unread postby sch_peakoiler » Fri 13 Oct 2006, 07:58:50

$this->bbcode_second_pass_quote('MD', 'A')s for the whole "water as fuel" question:

Solar powered electrolysis of water is the only long term hygrogen source available.



If you read the uranium supply thread and take its contents critically you will see that there is at least one more long term source : nuclear.

visions about NPPs on the shore, desalinating water and producing hydrogen (both in vast amounts) were around since 1970.
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Re: Anybody here see this about water as fuel?

Unread postby MD » Fri 13 Oct 2006, 08:36:30

$this->bbcode_second_pass_quote('sch_peakoiler', '')$this->bbcode_second_pass_quote('MD', 'A')s for the whole "water as fuel" question:

Solar powered electrolysis of water is the only long term hygrogen source available.



If you read the uranium supply thread and take its contents critically you will see that there is at least one more long term source : nuclear.

visions about NPPs on the shore, desalinating water and producing hydrogen (both in vast amounts) were around since 1970.


Good point. However when I say "long term", I mean centuries, not decades. The Sun is our only true long term source of energy, and has been all along.
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Re: Anybody here see this about water as fuel?

Unread postby MD » Fri 13 Oct 2006, 08:58:07

With honorable mention going to the Lunar-Earth tidal pair. Their energy will take quite a while to wind down also.
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Re: Anybody here see this about water as fuel?

Unread postby yesplease » Fri 13 Oct 2006, 09:45:48

$this->bbcode_second_pass_quote('MD', 'G')ood point. However when I say "long term", I mean centuries, not decades. The Sun is our only true long term source of energy, and has been all along.


Supposedly Liquid-Flouride reactors fueled with Thorium can provide centuries of energy. But don't take my word for it, check it out. Maybe it's not as rosey as the author paints it to be, and if so, you can link a study that supports it's non-roseyness.

$this->bbcode_second_pass_quote('', '3'). Fuel cycle. The neutron economy of the LFR allows it to breed thorium to uranium and essentially run forever. Thorium is plentiful and the resources available would fuel planetary energy production for thousands of years. The DOE recently disposed of a stockpile of 3216 metric tonnes of thorium nitrate that if burned in liquid-fluoride reactors would provide all US energy (electricity and transportation) needs for five years. Fission products can be isolated from the salt and disposed in a geological repository, where their activity would drop below background levels in ~300 years. Actinides would be retained in the core and not end up in the geological repository. The generation of trans-uranic nuclides from the thorium-uranium cycle is essentially zero.
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Re: Anybody here see this about water as fuel?

Unread postby MonteQuest » Fri 13 Oct 2006, 09:53:25

$this->bbcode_second_pass_quote('Micki', 'I') think you just wanted to show off your superior technical knowledge.


If you believe that, then this debate is over.

$this->bbcode_second_pass_quote('', 'Y')ou however seem so focused on the half empty glass that you give up even trying.


I guess you didn't click on my signature link or notice that I have over 7000 posts on here. Hardly have I given up. :)


$this->bbcode_second_pass_quote('', 'I')f the alternative for instance is NO VEHICLE.


No, the envitable is no vehicle. The days of having a private vehicle in which you can jump in and go anywhere at 70 mph plus are over. We just haven't accepted that fact yet.


$this->bbcode_second_pass_quote('', 'W')ell partly it is the point.


And the rest of the point is powerdown, restricted per capita energy use, and population reduction, along with a complete shift in our way of viewing the world about us.

Obviously, you didn't either read or grasp the point behind my Peakoil:Tip of the Icebeg thread.

There is no techno-fix.

$this->bbcode_second_pass_quote('', 'F')urthermore, besides giving up every development since 18th century what do you suggest?

Now, that is a strawman.

Read my posts. No where in 7000 posts will you find that nonsense.
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Re: Anybody here see this about water as fuel?

Unread postby Last_Laff » Fri 13 Oct 2006, 10:36:12

All Hail MonteQuest Hail! Hail!

All Hail MonteQuest Hail! Hail!

You've helped me to understand the broader view on both side of arguements.

And more than half of your posts have no nonsense theologies.
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Re: Anybody here see this about water as fuel?

Unread postby MD » Fri 13 Oct 2006, 11:01:19

$this->bbcode_second_pass_quote('yesplease', '')$this->bbcode_second_pass_quote('MD', 'G')ood point. However when I say "long term", I mean centuries, not decades. The Sun is our only true long term source of energy, and has been all along.


Supposedly Liquid-Flouride reactors fueled with Thorium can provide centuries of energy. But don't take my word for it, check it out. Maybe it's not as rosey as the author paints it to be, and if so, you can link a study that supports it's non-roseyness.

$this->bbcode_second_pass_quote('', '3'). Fuel cycle. The neutron economy of the LFR allows it to breed thorium to uranium and essentially run forever. Thorium is plentiful and the resources available would fuel planetary energy production for thousands of years. The DOE recently disposed of a stockpile of 3216 metric tonnes of thorium nitrate that if burned in liquid-fluoride reactors would provide all US energy (electricity and transportation) needs for five years. Fission products can be isolated from the salt and disposed in a geological repository, where their activity would drop below background levels in ~300 years. Actinides would be retained in the core and not end up in the geological repository. The generation of trans-uranic nuclides from the thorium-uranium cycle is essentially zero.


If it be so, then I am all for it. Time will tell. I am all in favor of some of the long-shots coming in. However I am not betting that way.
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Re: Anybody here see this about water as fuel?

Unread postby Micki » Fri 13 Oct 2006, 11:06:33

MonteQuest, that was not a very comprehensive response to my post.
Furthermore you avoid responding to the relevant posts/questions.

To anser you, yes I have read your post; "tip of the iceberg".
And you say for instance;
[quoteSo, the transition we need to do is not from fossil fuels to renewables, but from an infinite growth mindset to one of sustainability based upon the received solar flux and the earth’s ability to absorb our impact through the environmental sinks[/quote]
Why is that? Why can't we migrate to renewables AND move away from the "infinite growth" model. Even if we do scale down, oil and NG will eventually run out and we will then need other means of transportation.

I conclude again that you only see the world in blac and white.
Either people want everything to go on as before or we have to cut loose all development the last 200 years.

Hydrogen based technology can be used in all sorts of scenarios;
1) as an alternative in the 'business as usual world
2) as a transitional stage towards a more sustainable world
3) as a necessity after the great PO/PNG decline and die-off when the few remaining suvivors try to make a reasonable life.
AND we can still power down in all these scenarios, cause power DOWN doesn't necessarily mean power OUT.

In fact besides the caveat that we must not drive unsustainable growth further and you stating that we shouldn't develop any alternative energies, I don't see any real reasoning in that post why we shouldn't or couldn't develop hydrogen based transportation.


Even if you don't have time to respond to my last post, I would very much appreciate if you attempted to respond to these very brief questions;

1) Can improvements technically be made to allow better harnessing of alternative energy conversion to fuel?

2) Imagine that I could have a fuel cell vehicle that I can charge up with solar panels, would that be OK with you?
If I can have it can others have it as well? If not, can you give me a reason why not?

3) If sufficient number of petrol fuelled cars were replaced with solar powered fuel cell run cars, could that lower dependence on oil and potentially be a step towards a more susteainable world?

4) Could people generally cope better with transition and after PO world if they had some access to vehicles (private, public, emergency services, food transportation)
than if they did not?

5) Am I trying to push for an unsustainable world model just because I think there could be vehicles in the (near) future that can be charged up with for instance solar/wind power?

Don't you agree that we may end up in a power down model AND still have some forms of transportation, even if it is not used to drive billions of people between job-MCDonalds-WalMart?
(Once again, avoid package it all up into some thinking that the mere existence of hydrogen based transportation system somehow only would keeping the world running as it is.)

6) Besides hydrogen (and other alternative fuels) not being scalable or technically sufficient (yet) why do you actually say we should not make further developments in this area? (I assume now that you understood my reasoning that this has nothing to do with an ever expanding economy/population etc. Hydrogen could be used in small scale forinstance to keep priority transportation going.)
Micki
 

Re: Anybody here see this about water as fuel?

Unread postby MonteQuest » Fri 13 Oct 2006, 20:47:16

$this->bbcode_second_pass_quote('Micki', 'M')onteQuest, that was not a very comprehensive response to my post. Furthermore you avoid responding to the relevant posts/questions.


Wasn't meant to be. Brevity is brilliance. Besides, all of this was laid to rest over two years ago on this site.

Hydrogen is a dog that will not hunt.

Even the US DOE has cancelled all long-term funding for hydrogen R&D.

$this->bbcode_second_pass_quote('', '')$this->bbcode_second_pass_quote('Montequest', 'S')o, the transition we need to do is not from fossil fuels to renewables, but from an infinite growth mindset to one of sustainability based upon the received solar flux and the earth’s ability to absorb our impact through the environmental sinks

Why is that? Why can't we migrate to renewables AND move away from the "infinite growth" model.



Guess that just went over your head. That's what it says. The "received solar flux" is the renewable/sustainable energy we receive each and every day from the sun.

$this->bbcode_second_pass_quote('', 'I') conclude again that you only see the world in blac and white. Either people want everything to go on as before or we have to cut loose all development the last 200 years.


Another strawman.

Nowhere in 7000 posts will you find that nonsense.

$this->bbcode_second_pass_quote('', 'I')n fact besides the caveat that we must not drive unsustainable growth further and you stating that we shouldn't develop any alternative energies,

Another strawman. Nowhere in 7000 posts will you find that nonsense either.

$this->bbcode_second_pass_quote('', '1')) Can improvements technically be made to allow better harnessing of alternative energy conversion to fuel?

Sure, but increased effciency leads to greater use, not less. Jevon's Paradox.

$this->bbcode_second_pass_quote('', '2')) Imagine that I could have a fuel cell vehicle that I can charge up with solar panels, would that be OK with you?
If I can have it can others have it as well? If not, can you give me a reason why not?

Yes, yes, and yes.

$this->bbcode_second_pass_quote('', 'T')oday, it takes 700 square feet of photovoltaics (god knows what they must cost) operating for one week to produce enough hydrogen to drive a fuel cell car costing about $1 million dollars, 160 miles.

You can have it, but you can't get it. Not yet, and not in time. This is decades away unless you are flithy rich.


$this->bbcode_second_pass_quote('', '3')) If sufficient number of petrol fuelled cars were replaced with solar powered fuel cell run cars, could that lower dependence on oil and potentially be a step towards a more susteainable world?

I know of no current technology or energy source that can reduce our dependency upon oil. Slow the rate of growth of the dependency, yes, But reduce it, no.

$this->bbcode_second_pass_quote('', '4')) Could people generally cope better with transition and after PO world if they had some access to vehicles (private, public, emergency services, food transportation) than if they did not?

Sure, but private cars, like we know and love, are only possible in a cheap, readily available fossil fuel environment.

What if gas had been $10/gal in 1945?

Would we have built surburbia?

Hardly. Connect the dots.

$this->bbcode_second_pass_quote('', '5')) Am I trying to push for an unsustainable world model just because I think there could be vehicles in the (near) future that can be charged up with for instance solar/wind power?

No, but there is no evidence to support that notion, except for the rich. I don't think we will have extra power to run heat sinks.

$this->bbcode_second_pass_quote('', '6')) Besides hydrogen (and other alternative fuels) not being scalable or technically sufficient (yet) why do you actually say we should not make further developments in this area?

Another strawman. I don't. Never have.

$this->bbcode_second_pass_quote('', 'H')ydrogen could be used in small scale forinstance to keep priority transportation going.)

Better uses for small-scale hydrogen than auto fuel.

$this->bbcode_second_pass_quote('Montequest', 'I')t might better to hold off building hydrogen cars, and instead harness fuel cells to generate electricity for homes and businesses using decentralized renewable energy.
A Saudi saying, "My father rode a camel. I drive a car. My son flies a jet-plane. His son will ride a camel."
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Re: Anybody here see this about water as fuel?

Unread postby quizz » Fri 13 Oct 2006, 21:49:40

Monte:

In a perfect world (I mean really perfect world with Biointensive gardening or similar, eductated populations migrating to arable land, nuturing of the land, etc. etc.),what do you think the world's population carrying capacity? I'm thinking twice as many or slighty more (until it's brought back to equilibrium).
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